GE L30 Instruction Manual

Manual P/N: 1601-9050-X3 (GEK-113622A) GE Digital Energy 650 Markland Street Markham, Ontario Canada L6C 0M1 Tel: +1 905 927 7070 Fax: +1 905 927 5098 Internet: http://www.GEDigitalEnergy.com �������� � � � � � � � � � � � � � � � � � � � � � � GE Multilin's Quality Management System is registered to ISO 9001:2008 QMI # 005094 UL # A3775 *1601-9050-X3* GE Digital Energy L30 Line Current Differential System UR Series Instruction Manual LISTED 52TL IND.CONT. EQ. E83849

L30 Line Current Differential System UR Series Instruction Manual revision 6.0x. FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista, HardFiber, Digital Energy, Multilin, and GE Multilin are trademarks or registered trademarks of GE Multilin Inc. The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The content of this manual is for informational use only and is subject to change without notice. Part number: 1601-9050-X3 (August 2015)

iii TABLE OF CONTENTS 1. GETTING STARTED 1.1 IMPORTANT PROCEDURES 1.1.1 CAUTIONS AND WARNINGS ........................................................................... 1-1 1.1.2 INSPECTION PROCEDURE ............................................................................. 1-2 1.2 UR OVERVIEW 1.2.1 INTRODUCTION TO THE UR ........................................................................... 1-3 1.2.2 HARDWARE ARCHITECTURE ......................................................................... 1-4 1.2.3 SOFTWARE ARCHITECTURE.......................................................................... 1-5 1.2.4 IMPORTANT CONCEPTS................................................................................. 1-5 1.3 ENERVISTA UR SETUP SOFTWARE 1.3.1 PC REQUIREMENTS ........................................................................................ 1-6 1.3.2 INSTALLATION.................................................................................................. 1-6 1.3.3 CONFIGURING THE L30 FOR SOFTWARE ACCESS..................................... 1-7 1.3.4 USING THE QUICK CONNECT FEATURE..................................................... 1-10 1.3.5 CONNECTING TO THE L30 RELAY ............................................................... 1-16 1.4 UR HARDWARE 1.4.1 MOUNTING AND WIRING............................................................................... 1-17 1.4.2 COMMUNICATIONS........................................................................................ 1-17 1.4.3 FACEPLATE DISPLAY .................................................................................... 1-17 1.5 USING THE RELAY 1.5.1 FACEPLATE KEYPAD..................................................................................... 1-18 1.5.2 MENU NAVIGATION ....................................................................................... 1-18 1.5.3 MENU HIERARCHY ........................................................................................ 1-18 1.5.4 RELAY ACTIVATION....................................................................................... 1-18 1.5.5 RELAY PASSWORDS..................................................................................... 1-19 1.5.6 FLEXLOGIC™ CUSTOMIZATION................................................................... 1-19 1.5.7 COMMISSIONING ........................................................................................... 1-20 2. PRODUCT DESCRIPTION 2.1 INTRODUCTION 2.1.1 OVERVIEW........................................................................................................ 2-1 2.1.2 FEATURES........................................................................................................ 2-3 2.1.3 ORDERING........................................................................................................ 2-4 2.1.4 REPLACEMENT MODULES ............................................................................. 2-9 2.2 PILOT CHANNEL RELAYING 2.2.1 INTER-RELAY COMMUNICATIONS............................................................... 2-11 2.2.2 CHANNEL MONITOR...................................................................................... 2-12 2.2.3 LOOPBACK TEST ........................................................................................... 2-13 2.2.4 DIRECT TRANSFER TRIPPING ..................................................................... 2-13 2.3 FUNCTIONALITY 2.3.1 PROTECTION AND CONTROL FUNCTIONS ................................................ 2-14 2.3.2 METERING AND MONITORING FUNCTIONS ............................................... 2-14 2.3.3 OTHER FUNCTIONS....................................................................................... 2-15 2.4 SPECIFICATIONS 2.4.1 PROTECTION ELEMENTS ............................................................................. 2-18 2.4.2 USER-PROGRAMMABLE ELEMENTS........................................................... 2-20 2.4.3 MONITORING.................................................................................................. 2-21 2.4.4 METERING ...................................................................................................... 2-22 2.4.5 INPUTS............................................................................................................ 2-22 2.4.6 POWER SUPPLY ............................................................................................ 2-23 2.4.7 OUTPUTS........................................................................................................ 2-23 2.4.8 COMMUNICATION PROTOCOLS .................................................................. 2-25 2.4.9 INTER-RELAY COMMUNICATIONS............................................................... 2-26 2.4.10 ENVIRONMENTAL .......................................................................................... 2-26 2.4.11 TYPE TESTS ................................................................................................... 2-27 2.4.12 PRODUCTION TESTS .................................................................................... 2-27 2.4.13 APPROVALS ................................................................................................... 2-28 2.4.14 MAINTENANCE ............................................................................................... 2-28

GE Multilin TABLE OF CONTENTS 3. HARDWARE 3.1 DESCRIPTION 3.1.1 PANEL CUTOUT ................................................................................................3-1 3.1.2 REAR TERMINAL LAYOUT ...............................................................................3-7 3.2 WIRING 3.2.1 TYPICAL WIRING ..............................................................................................3-8 3.2.2 DIELECTRIC STRENGTH..................................................................................3-9 3.2.3 CONTROL POWER............................................................................................3-9 3.2.4 CT AND VT MODULES ....................................................................................3-10 3.2.5 PROCESS BUS MODULES .............................................................................3-12 3.2.6 CONTACT INPUTS AND OUTPUTS................................................................3-12 3.2.7 TRANSDUCER INPUTS AND OUTPUTS........................................................3-20 3.2.8 RS232 FACEPLATE PORT..............................................................................3-22 3.2.9 CPU COMMUNICATION PORTS.....................................................................3-22 3.2.10 IRIG-B...............................................................................................................3-25 3.3 PILOT CHANNEL COMMUNICATIONS 3.3.1 DESCRIPTION .................................................................................................3-28 3.3.2 FIBER: LED AND ELED TRANSMITTERS ......................................................3-29 3.3.3 FIBER-LASER TRANSMITTERS .....................................................................3-29 3.3.4 G.703 INTERFACE...........................................................................................3-31 3.3.5 RS422 INTERFACE .........................................................................................3-34 3.3.6 TWO-CHANNEL TWO-CLOCK RS422 INTERFACE.......................................3-36 3.3.7 RS422 AND FIBER INTERFACE .....................................................................3-36 3.3.8 G.703 AND FIBER INTERFACE ......................................................................3-37 3.3.9 IEEE C37.94 INTERFACE................................................................................3-37 3.3.10 C37.94SM INTERFACE ...................................................................................3-41 3.4 MANAGED ETHERNET SWITCH MODULES 3.4.1 OVERVIEW ......................................................................................................3-45 3.4.2 MANAGED ETHERNET SWITCH MODULE HARDWARE..............................3-45 3.4.3 MANAGED SWITCH LED INDICATORS .........................................................3-46 3.4.4 INITIAL SETUP OF THE ETHERNET SWITCH MODULE...............................3-46 3.4.5 CONFIGURING THE MANAGED ETHERNET SWITCH MODULE.................3-50 3.4.6 UPLOADING L30 SWITCH MODULE FIRMWARE..........................................3-53 3.4.7 ETHERNET SWITCH SELF-TEST ERRORS...................................................3-55 4. HUMAN INTERFACES 4.1 ENERVISTA UR SETUP SOFTWARE INTERFACE 4.1.1 INTRODUCTION ................................................................................................4-1 4.1.2 CREATING A SITE LIST ....................................................................................4-1 4.1.3 ENERVISTA UR SETUP OVERVIEW................................................................4-1 4.1.4 ENERVISTA UR SETUP MAIN WINDOW..........................................................4-3 4.2 EXTENDED ENERVISTA UR SETUP FEATURES 4.2.1 SETTINGS TEMPLATES ...................................................................................4-5 4.2.2 SECURING AND LOCKING FLEXLOGIC™ EQUATIONS ................................4-9 4.2.3 SETTINGS FILE TRACEABILITY.....................................................................4-11 4.3 FACEPLATE INTERFACE 4.3.1 FACEPLATE.....................................................................................................4-14 4.3.2 LED INDICATORS............................................................................................4-15 4.3.3 CUSTOM LABELING OF LEDS .......................................................................4-18 4.3.4 DISPLAY...........................................................................................................4-23 4.3.5 KEYPAD ...........................................................................................................4-23 4.3.6 BREAKER CONTROL ......................................................................................4-23 4.3.7 MENUS.............................................................................................................4-24 4.3.8 CHANGING SETTINGS ...................................................................................4-26 5. SETTINGS 5.1 OVERVIEW 5.1.1 SETTINGS MENU ..............................................................................................5-1 5.1.2 INTRODUCTION TO ELEMENTS......................................................................5-4 5.1.3 INTRODUCTION TO AC SOURCES..................................................................5-5

v TABLE OF CONTENTS 5.2 PRODUCT SETUP 5.2.1 SECURITY......................................................................................................... 5-8 5.2.2 DISPLAY PROPERTIES.................................................................................. 5-13 5.2.3 CLEAR RELAY RECORDS ............................................................................. 5-14 5.2.4 COMMUNICATIONS........................................................................................ 5-15 5.2.5 MODBUS USER MAP...................................................................................... 5-38 5.2.6 REAL TIME CLOCK......................................................................................... 5-39 5.2.7 FAULT REPORTS ........................................................................................... 5-40 5.2.8 OSCILLOGRAPHY .......................................................................................... 5-42 5.2.9 DATA LOGGER ............................................................................................... 5-44 5.2.10 USER-PROGRAMMABLE LEDS..................................................................... 5-45 5.2.11 USER-PROGRAMMABLE SELF-TESTS ........................................................ 5-48 5.2.12 CONTROL PUSHBUTTONS ........................................................................... 5-49 5.2.13 USER-PROGRAMMABLE PUSHBUTTONS ................................................... 5-50 5.2.14 FLEX STATE PARAMETERS.......................................................................... 5-56 5.2.15 USER-DEFINABLE DISPLAYS ....................................................................... 5-56 5.2.16 INSTALLATION................................................................................................ 5-58 5.3 REMOTE RESOURCES 5.3.1 REMOTE RESOURCES CONFIGURATION................................................... 5-59 5.4 SYSTEM SETUP 5.4.1 AC INPUTS...................................................................................................... 5-60 5.4.2 POWER SYSTEM............................................................................................ 5-61 5.4.3 SIGNAL SOURCES ......................................................................................... 5-62 5.4.4 87L POWER SYSTEM..................................................................................... 5-65 5.4.5 BREAKERS...................................................................................................... 5-71 5.4.6 DISCONNECT SWITCHES ............................................................................. 5-75 5.4.7 FLEXCURVES™.............................................................................................. 5-78 5.4.8 PHASOR MEASUREMENT UNIT.................................................................... 5-85 5.5 FLEXLOGIC™ 5.5.1 INTRODUCTION TO FLEXLOGIC™............................................................. 5-102 5.5.2 FLEXLOGIC™ RULES .................................................................................. 5-111 5.5.3 FLEXLOGIC™ EVALUATION........................................................................ 5-111 5.5.4 FLEXLOGIC™ EXAMPLE ............................................................................. 5-112 5.5.5 FLEXLOGIC™ EQUATION EDITOR ............................................................. 5-116 5.5.6 FLEXLOGIC™ TIMERS................................................................................. 5-116 5.5.7 FLEXELEMENTS™ ....................................................................................... 5-117 5.5.8 NON-VOLATILE LATCHES ........................................................................... 5-122 5.6 GROUPED ELEMENTS 5.6.1 OVERVIEW.................................................................................................... 5-123 5.6.2 SETTING GROUP ......................................................................................... 5-123 5.6.3 LINE DIFFERENTIAL ELEMENTS ................................................................ 5-123 5.6.4 PHASE CURRENT ........................................................................................ 5-129 5.6.5 NEUTRAL CURRENT.................................................................................... 5-140 5.6.6 GROUND CURRENT..................................................................................... 5-147 5.6.7 NEGATIVE SEQUENCE CURRENT ............................................................. 5-150 5.6.8 BREAKER FAILURE...................................................................................... 5-152 5.6.9 VOLTAGE ELEMENTS.................................................................................. 5-161 5.6.10 SUPERVISING ELEMENTS .......................................................................... 5-168 5.7 CONTROL ELEMENTS 5.7.1 OVERVIEW.................................................................................................... 5-170 5.7.2 TRIP BUS....................................................................................................... 5-170 5.7.3 SETTING GROUPS....................................................................................... 5-172 5.7.4 SELECTOR SWITCH..................................................................................... 5-173 5.7.5 UNDERFREQUENCY.................................................................................... 5-179 5.7.6 SYNCHROCHECK......................................................................................... 5-180 5.7.7 AUTORECLOSE............................................................................................ 5-184 5.7.8 DIGITAL ELEMENTS..................................................................................... 5-190 5.7.9 DIGITAL COUNTERS.................................................................................... 5-193 5.7.10 MONITORING ELEMENTS ........................................................................... 5-195 5.8 INPUTS AND OUTPUTS 5.8.1 CONTACT INPUTS........................................................................................ 5-206 5.8.2 VIRTUAL INPUTS.......................................................................................... 5-208 5.8.3 CONTACT OUTPUTS.................................................................................... 5-209 5.8.4 VIRTUAL OUTPUTS...................................................................................... 5-211

GE Multilin TABLE OF CONTENTS 5.8.5 REMOTE DEVICES........................................................................................5-212 5.8.6 REMOTE INPUTS ..........................................................................................5-213 5.8.7 REMOTE DOUBLE-POINT STATUS INPUTS ...............................................5-214 5.8.8 REMOTE OUTPUTS ......................................................................................5-215 5.8.9 DIRECT INPUTS AND OUTPUTS..................................................................5-215 5.8.10 RESETTING ...................................................................................................5-218 5.8.11 IEC 61850 GOOSE ANALOGS ......................................................................5-218 5.8.12 IEC 61850 GOOSE INTEGERS .....................................................................5-219 5.9 TRANSDUCER INPUTS AND OUTPUTS 5.9.1 DCMA INPUTS ...............................................................................................5-220 5.9.2 RTD INPUTS ..................................................................................................5-221 5.9.3 DCMA OUTPUTS ...........................................................................................5-223 5.10 TESTING 5.10.1 TEST MODE...................................................................................................5-227 5.10.2 FORCE CONTACT INPUTS...........................................................................5-228 5.10.3 FORCE CONTACT OUTPUTS.......................................................................5-229 5.10.4 CHANNEL TESTS ..........................................................................................5-230 5.10.5 PHASOR MEASUREMENT UNIT TEST VALUES.........................................5-230 6. ACTUAL VALUES 6.1 OVERVIEW 6.1.1 ACTUAL VALUES MENU...................................................................................6-1 6.2 STATUS 6.2.1 CONTACT INPUTS ............................................................................................6-3 6.2.2 VIRTUAL INPUTS ..............................................................................................6-3 6.2.3 REMOTE INPUTS ..............................................................................................6-3 6.2.4 REMOTE DOUBLE-POINT STATUS INPUTS ...................................................6-4 6.2.5 DIRECT INPUTS ................................................................................................6-4 6.2.6 CONTACT OUTPUTS ........................................................................................6-4 6.2.7 VIRTUAL OUTPUTS ..........................................................................................6-5 6.2.8 AUTORECLOSE.................................................................................................6-5 6.2.9 REMOTE DEVICES............................................................................................6-5 6.2.10 CHANNEL TESTS ..............................................................................................6-6 6.2.11 DIGITAL COUNTERS.........................................................................................6-7 6.2.12 SELECTOR SWITCHES ....................................................................................6-7 6.2.13 FLEX STATES....................................................................................................6-8 6.2.14 IEC 61850 GOOSE INTEGERS .........................................................................6-8 6.2.15 ETHERNET ........................................................................................................6-8 6.2.16 ETHERNET SWITCH .........................................................................................6-9 6.3 METERING 6.3.1 METERING CONVENTIONS ...........................................................................6-10 6.3.2 DIFFERENTIAL CURRENT..............................................................................6-13 6.3.3 SOURCES ........................................................................................................6-14 6.3.4 SYNCHROCHECK ...........................................................................................6-17 6.3.5 TRACKING FREQUENCY................................................................................6-18 6.3.6 FLEXELEMENTS™..........................................................................................6-18 6.3.7 IEC 61580 GOOSE ANALOG VALUES ...........................................................6-19 6.3.8 PHASOR MEASUREMENT UNIT ....................................................................6-19 6.3.9 TRANSDUCER INPUTS AND OUTPUTS........................................................6-21 6.4 RECORDS 6.4.1 FAULT REPORTS ............................................................................................6-22 6.4.2 EVENT RECORDS...........................................................................................6-22 6.4.3 OSCILLOGRAPHY ...........................................................................................6-23 6.4.4 DATA LOGGER................................................................................................6-23 6.4.5 PHASOR MEASUREMENT UNIT RECORDS .................................................6-23 6.4.6 BREAKER MAINTENANCE .............................................................................6-24 6.5 PRODUCT INFORMATION 6.5.1 MODEL INFORMATION...................................................................................6-25 6.5.2 FIRMWARE REVISIONS..................................................................................6-25

vii TABLE OF CONTENTS 7. COMMANDS AND TARGETS 7.1 COMMANDS 7.1.1 COMMANDS MENU .......................................................................................... 7-1 7.1.2 VIRTUAL INPUTS.............................................................................................. 7-1 7.1.3 CLEAR RECORDS ............................................................................................ 7-2 7.1.4 SET DATE AND TIME ....................................................................................... 7-2 7.1.5 RELAY MAINTENANCE .................................................................................... 7-3 7.1.6 PHASOR MEASUREMENT UNIT ONE-SHOT.................................................. 7-3 7.2 TARGETS 7.2.1 TARGETS MENU............................................................................................... 7-6 7.2.2 TARGET MESSAGES ....................................................................................... 7-6 7.2.3 RELAY SELF-TESTS......................................................................................... 7-6 8. SECURITY 8.1 PASSWORD SECURITY 8.1.1 OVERVIEW........................................................................................................ 8-1 8.1.2 PASSWORD SECURITY MENU ....................................................................... 8-2 8.1.3 LOCAL PASSWORDS....................................................................................... 8-2 8.1.4 REMOTE PASSWORDS ................................................................................... 8-3 8.1.5 ACCESS SUPERVISION................................................................................... 8-4 8.1.6 DUAL PERMISSION SECURITY ACCESS ....................................................... 8-4 8.2 ENERVISTA SECURITY MANAGEMENT SYSTEM 8.2.1 OVERVIEW........................................................................................................ 8-6 8.2.2 ENABLING THE SECURITY MANAGEMENT SYSTEM ................................... 8-6 8.2.3 ADDING A NEW USER ..................................................................................... 8-6 8.2.4 MODIFYING USER PRIVILEGES ..................................................................... 8-7 9. THEORY OF OPERATION 9.1 OVERVIEW 9.1.1 L30 DESIGN ...................................................................................................... 9-1 9.1.2 L30 ARCHITECTURE........................................................................................ 9-1 9.1.3 REMOVAL OF DECAYING OFFSET................................................................. 9-2 9.1.4 PHASELET COMPUTATION............................................................................. 9-2 9.1.5 DISTURBANCE DETECTION............................................................................ 9-3 9.1.6 FAULT DETECTION .......................................................................................... 9-3 9.1.7 GROUND DIFFERENTIAL ELEMENT............................................................... 9-4 9.1.8 CLOCK SYNCHRONIZATION........................................................................... 9-5 9.1.9 FREQUENCY TRACKING AND PHASE LOCKING .......................................... 9-6 9.1.10 FREQUENCY DETECTION............................................................................... 9-7 9.1.11 PHASE DETECTION ......................................................................................... 9-7 9.1.12 PHASE LOCKING FILTER .............................................................................. 9-10 9.1.13 MATCHING PHASELETS................................................................................ 9-11 9.1.14 START-UP ....................................................................................................... 9-11 9.1.15 HARDWARE AND COMMUNICATION REQUIREMENTS ............................. 9-11 9.1.16 ONLINE ESTIMATE OF MEASUREMENT ERRORS ..................................... 9-12 9.1.17 CT SATURATION DETECTION ...................................................................... 9-13 9.1.18 CHARGING CURRENT COMPENSATION ..................................................... 9-13 9.1.19 DIFFERENTIAL ELEMENT CHARACTERISTICS........................................... 9-14 9.1.20 RELAY SYNCHRONIZATION.......................................................................... 9-15 9.2 OPERATING CONDITION CHARACTERISTICS 9.2.1 DESCRIPTION................................................................................................. 9-16 9.2.2 TRIP DECISION EXAMPLE............................................................................. 9-18 9.2.3 TRIP DECISION TEST .................................................................................... 9-18 9.3 FAULT LOCATOR 9.3.1 DESCRIPTION................................................................................................. 9-20 10. APPLICATION OF SETTINGS 10.1 CT REQUIREMENTS 10.1.1 INTRODUCTION.............................................................................................. 10-1 10.1.2 CT SATURATION ANALYSIS TOOL............................................................... 10-2

GE Multilin TABLE OF CONTENTS 10.2 CURRENT DIFFERENTIAL (87L) SETTINGS 10.2.1 INTRODUCTION ..............................................................................................10-4 10.2.2 CURRENT DIFFERENTIAL PICKUP ...............................................................10-4 10.2.3 CURRENT DIFF RESTRAINT 1.......................................................................10-4 10.2.4 CURRENT DIFF RESTRAINT 2.......................................................................10-4 10.2.5 CURRENT DIFF BREAK POINT ......................................................................10-4 10.2.6 CT TAP .............................................................................................................10-5 10.3 CHANNEL ASYMMETRY COMPENSATION USING GPS 10.3.1 DESCRIPTION .................................................................................................10-7 10.3.2 COMPENSATION METHOD 1 .........................................................................10-7 10.3.3 COMPENSATION METHOD 2 .........................................................................10-8 10.3.4 COMPENSATION METHOD 3 .........................................................................10-8 10.4 INSTANTANEOUS ELEMENTS 10.4.1 INSTANTANEOUS ELEMENT ERROR DURING L30 SYNCHRONIZATION ........................................................................................................................10-10 11. COMMISSIONING 11.1 TESTING 11.1.1 CHANNEL TESTING ........................................................................................11-1 11.1.2 CLOCK SYNCHRONIZATION TESTS .............................................................11-2 11.1.3 CURRENT DIFFERENTIAL..............................................................................11-3 11.1.4 LOCAL-REMOTE RELAY TESTS ....................................................................11-4 12. MAINTENANCE 12.1 MODULES 12.1.1 REPLACE A MODULE .....................................................................................12-1 12.2 BATTERIES 12.2.1 REPLACE BATTERY .......................................................................................12-3 12.2.2 DISPOSE OF BATTERY ..................................................................................12-4 12.3 UNINSTALL AND CLEAR FILES AND DATA 12.3.1 UNINSTALL AND CLEAR FILES AND DATA ..................................................12-7 12.4 REPAIRS 12.4.1 REPAIRS ..........................................................................................................12-8 12.5 STORAGE 12.5.1 STORAGE ........................................................................................................12-9 12.6 DISPOSAL 12.6.1 DISPOSAL......................................................................................................12-10 A. FLEXANALOG AND FLEXINTEGER PARAMETERS A.1 PARAMETER LISTS A.1.1 FLEXANALOG ITEMS....................................................................................... A-1 A.1.2 FLEXINTEGER ITEMS...................................................................................... A-8 B. MODBUS COMMUNICATIONS B.1 MODBUS RTU PROTOCOL B.1.1 INTRODUCTION ............................................................................................... B-1 B.1.2 PHYSICAL LAYER ............................................................................................ B-1 B.1.3 DATA LINK LAYER ........................................................................................... B-1 B.1.4 MODBUS RTU CRC-16 ALGORITHM .............................................................. B-2 B.2 MODBUS FUNCTION CODES B.2.1 SUPPORTED FUNCTION CODES ................................................................... B-4 B.2.2 READ ACTUAL VALUES OR SETTINGS (FUNCTION CODE 03/04H) ........... B-4 B.2.3 EXECUTE OPERATION (FUNCTION CODE 05H)........................................... B-5 B.2.4 STORE SINGLE SETTING (FUNCTION CODE 06H)....................................... B-5 B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H)................................ B-6

ix TABLE OF CONTENTS B.2.6 EXCEPTION RESPONSES ...............................................................................B-6 B.3 FILE TRANSFERS B.3.1 OBTAINING RELAY FILES VIA MODBUS ........................................................B-7 B.4 MEMORY MAPPING B.4.1 MODBUS MEMORY MAP .................................................................................B-9 B.4.2 DATA FORMATS.............................................................................................B-66 C. IEC 61850 COMMUNICATIONS C.1 OVERVIEW C.1.1 INTRODUCTION................................................................................................C-1 C.1.2 COMMUNICATION PROFILES .........................................................................C-1 C.1.3 FILE TRANSFER BY IEC 61850 .......................................................................C-2 C.2 SERVER DATA ORGANIZATION C.2.1 OVERVIEW........................................................................................................C-3 C.2.2 GGIO1: DIGITAL STATUS VALUES .................................................................C-3 C.2.3 GGIO2: DIGITAL CONTROL VALUES ..............................................................C-3 C.2.4 GGIO3: DIGITAL STATUS AND ANALOG VALUES FROM RECEIVED GOOSE DATA ...................................................................................................C-3 C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES.........................................C-3 C.2.6 MMXU: ANALOG MEASURED VALUES...........................................................C-4 C.2.7 PROTECTION AND OTHER LOGICAL NODES ...............................................C-4 C.3 SERVER FEATURES AND CONFIGURATION C.3.1 BUFFERED/UNBUFFERED REPORTING........................................................C-6 C.3.2 FILE TRANSFER ...............................................................................................C-6 C.3.3 TIMESTAMPS AND SCANNING .......................................................................C-6 C.3.4 LOGICAL DEVICE NAME..................................................................................C-6 C.3.5 LOCATION.........................................................................................................C-6 C.3.6 LOGICAL NODE NAME PREFIXES ..................................................................C-7 C.3.7 CONNECTION TIMING .....................................................................................C-7 C.3.8 NON-IEC 61850 DATA ......................................................................................C-7 C.3.9 COMMUNICATION SOFTWARE UTILITIES.....................................................C-7 C.4 GENERIC SUBSTATION EVENT SERVICES: GSSE AND GOOSE C.4.1 OVERVIEW........................................................................................................C-8 C.4.2 GSSE CONFIGURATION..................................................................................C-8 C.4.3 FIXED GOOSE ..................................................................................................C-8 C.4.4 CONFIGURABLE GOOSE.................................................................................C-8 C.4.5 ETHERNET MAC ADDRESS FOR GSSE/GOOSE.........................................C-10 C.4.6 GSSE ID AND GOOSE ID SETTINGS ............................................................C-11 C.5 IEC 61850 IMPLEMENTATION VIA ENERVISTA UR SETUP C.5.1 OVERVIEW......................................................................................................C-12 C.5.2 CONFIGURING IEC 61850 SETTINGS...........................................................C-13 C.5.3 ABOUT ICD FILES...........................................................................................C-14 C.5.4 CREATING AN ICD FILE WITH ENERVISTA UR SETUP ..............................C-18 C.5.5 ABOUT SCD FILES .........................................................................................C-18 C.5.6 IMPORTING AN SCD FILE WITH ENERVISTA UR SETUP...........................C-21 C.6 ACSI CONFORMANCE C.6.1 ACSI BASIC CONFORMANCE STATEMENT.................................................C-23 C.6.2 ACSI MODELS CONFORMANCE STATEMENT ............................................C-23 C.6.3 ACSI SERVICES CONFORMANCE STATEMENT .........................................C-24 C.7 LOGICAL NODES C.7.1 LOGICAL NODES TABLE ...............................................................................C-27 D. IEC 60870-5-104 COMMUNICATIONS D.1 IEC 60870-5-104 D.1.1 INTEROPERABILITY DOCUMENT ...................................................................D-1 D.1.2 POINT LIST........................................................................................................D-9

GE Multilin TABLE OF CONTENTS E. DNP COMMUNICATIONS E.1 DEVICE PROFILE DOCUMENT E.1.1 DNP V3.00 DEVICE PROFILE .......................................................................... E-1 E.1.2 IMPLEMENTATION TABLE .............................................................................. E-4 E.2 DNP POINT LISTS E.2.1 BINARY INPUT POINTS ................................................................................... E-8 E.2.2 BINARY AND CONTROL RELAY OUTPUT...................................................... E-9 E.2.3 COUNTERS..................................................................................................... E-10 E.2.4 ANALOG INPUTS............................................................................................ E-11 F. MISCELLANEOUS F.1 CHANGE NOTES F.1.1 REVISION HISTORY......................................................................................... F-1 F.1.2 CHANGES TO THE L30 MANUAL.................................................................... F-1 F.2 ABBREVIATIONS F.2.1 STANDARD ABBREVIATIONS ......................................................................... F-4 F.3 WARRANTY F.3.1 GE MULTILIN WARRANTY............................................................................... F-6

1-1 1 GETTING STARTED 1.1 IMPORTANT PROCEDURES 1 1 GETTING STARTED 1.1IMPORTANT PROCEDURES Please read this chapter to help guide you through the initial setup of your new L30 Line Current Differential System. 1.1.1 CAUTIONS AND WARNINGS Before attempting to install or use the device, review all safety indicators in this document to help prevent injury, equipment damage, or downtime. The following safety and equipment symbols are used in this document. Indicates a hazardous situation which, if not avoided, will result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. Indicates practices not related to personal injury. a) GENERAL CAUTIONS AND WARNINGS The following general safety precautions and warnings apply. Ensure that all connections to the product are correct so as to avoid accidental risk of shock and/or fire, for example such as can arise from high voltage connected to low voltage termi- nals. Follow the requirements of this manual, including adequate wiring size and type, terminal torque settings, voltage, current magnitudes applied, and adequate isolation/clearance in external wiring from high to low voltage circuits. Use the device only for its intended purpose and application. Ensure that all ground paths are uncompromised for safety purposes during device operation and service. Ensure that the control power applied to the device, the AC current, and voltage input match the ratings specified on the relay nameplate. Do not apply current or voltage in excess of the specified limits. Only qualified personnel are to operate the device. Such personnel must be thoroughly familiar with all safety cau- tions and warnings in this manual and with applicable country, regional, utility, and plant safety regulations. Hazardous voltages can exist in the power supply and at the device connection to current transformers, voltage transformers, control, and test circuit terminals. Make sure all sources of such voltages are isolated prior to attempting work on the device. Hazardous voltages can exist when opening the secondary circuits of live current transformers. Make sure that current transformer secondary circuits are shorted out before making or removing any connection to the current transformer (CT) input terminals of the device. For tests with secondary test equipment, ensure that no other sources of voltages or currents are connected to such equipment and that trip and close commands to the circuit breakers or other switching apparatus are iso- lated, unless this is required by the test procedure and is specified by appropriate utility/plant procedure. When the device is used to control primary equipment, such as circuit breakers, isolators, and other switching apparatus, all control circuits from the device to the primary equipment must be isolated while personnel are working on or around this primary equipment to prevent any inadvertent command from this device. Use an external disconnect to isolate the mains voltage supply. LED transmitters are classified as IEC 60825-1 Accessible Emission Limit (AEL) Class 1M. Class 1M devices are considered safe to the unaided eye. Do not view directly with optical instruments. This product is rated to Class A emissions levels and is to be used in Utility, Substation Industrial environments. Not to be used near electronic devices rated for Class B levels. ������ ������� ������� ������ ������ �������

GE Multilin 1.1 IMPORTANT PROCEDURES 1 GETTING STARTED 1 1.1.2 INSPECTION PROCEDURE 1. Open the relay packaging and inspect the unit for physical damage. 2. View the rear nameplate and verify that the correct model has been ordered. Figure 1–1: REAR NAMEPLATE (EXAMPLE) 3. Ensure that the following items are included: • Instruction manual (if ordered) • GE EnerVista CD (includes the EnerVista UR Setup software and manuals in PDF format) • Mounting screws For product information, instruction manual updates, and the latest software updates, please visit the GE Digital Energy website at http://www.gedigitalenergy.com. If there is any noticeable physical damage, or any of the contents listed are missing, please contact GE Digital Energy immediately. GE DIGITAL ENERGY CONTACT INFORMATION AND CALL CENTER FOR PRODUCT SUPPORT: GE Digital Energy 650 Markland Street Markham, Ontario Canada L6C 0M1 TELEPHONE: Worldwide +1 905 927 7070 Europe/Middle East/Africa +34 94 485 88 54 North America toll-free 1 800 547 8629 FAX: +1 905 927 5098 E-MAIL: Worldwide [email protected] Europe [email protected] HOME PAGE: http://www.gedigitalenergy.com/multilin ������������ ������ ����� ��������������� ������������� �������������� ��������� ���������� ������� ��������� ������������������������ ��� ���������� ��������� ������������ � ������������ ������������ �������������� ��������������� ���������������� ������������������������������������ ���������������� ��������������������������� �������� ��� ����������������������� ������������������������������������������������������������������������������������������������������������������� ����������� ������������������������������������������������������������������������������������������������������������������� ������ ���� ������������� ������ NOTE

1-3 1 GETTING STARTED 1.2 UR OVERVIEW 1 1.2UR OVERVIEW 1.2.1 INTRODUCTION TO THE UR Historically, substation protection, control, and metering functions were performed with electromechanical equipment. This first generation of equipment was gradually replaced by analog electronic equipment, most of which emulated the single- function approach of their electromechanical precursors. Both of these technologies required expensive cabling and auxil- iary equipment to produce functioning systems. Recently, digital electronic equipment has begun to provide protection, control, and metering functions. Initially, this equip- ment was either single function or had very limited multi-function capability, and did not significantly reduce the cabling and auxiliary equipment required. However, recent digital relays have become quite multi-functional, reducing cabling and aux- iliaries significantly. These devices also transfer data to central control facilities and Human Machine Interfaces using elec- tronic communications. The functions performed by these products have become so broad that many users now prefer the term IED (Intelligent Electronic Device). It is obvious to station designers that the amount of cabling and auxiliary equipment installed in stations can be even further reduced, to 20% to 70% of the levels common in 1990, to achieve large cost reductions. This requires placing even more functions within the IEDs. Users of power equipment are also interested in reducing cost by improving power quality and personnel productivity, and as always, in increasing system reliability and efficiency. These objectives are realized through software which is used to perform functions at both the station and supervisory levels. The use of these systems is growing rapidly. High speed communications are required to meet the data transfer rates required by modern automatic control and moni- toring systems. In the near future, very high speed communications will be required to perform protection signaling with a performance target response time for a command signal between two IEDs, from transmission to reception, of less than 3 milliseconds. This has been established by the IEC 61850 standard. IEDs with the capabilities outlined above will also provide significantly more power system data than is presently available, enhance operations and maintenance, and permit the use of adaptive system configuration for protection and control sys- tems. This new generation of equipment must also be easily incorporated into automation systems, at both the station and enterprise levels. The GE Multilin Universal Relay (UR) has been developed to meet these goals.

GE Multilin 1.2 UR OVERVIEW 1 GETTING STARTED 1 1.2.2 HARDWARE ARCHITECTURE a) UR BASIC DESIGN The UR is a digital-based device containing a central processing unit (CPU) that handles multiple types of input and output signals. The UR can communicate over a local area network (LAN) with an operator interface, a programming device, or another UR device. Figure 1–2: UR CONCEPT BLOCK DIAGRAM The CPU module contains firmware that provides protection elements in the form of logic algorithms, as well as program- mable logic gates, timers, and latches for control features. Input elements accept a variety of analog or digital signals from the field. The UR isolates and converts these signals into logic signals used by the relay. Output elements convert and isolate the logic signals generated by the relay into digital or analog signals that can be used to control field devices. b) UR SIGNAL TYPES The contact inputs and outputs are digital signals associated with connections to hard-wired contacts. Both ‘wet’ and ‘dry’ contacts are supported. The virtual inputs and outputs are digital signals associated with UR-series internal logic signals. Virtual inputs include signals generated by the local user interface. The virtual outputs are outputs of FlexLogic™ equations used to customize the device. Virtual outputs can also serve as virtual inputs to FlexLogic™ equations. The analog inputs and outputs are signals that are associated with transducers, such as Resistance Temperature Detec- tors (RTDs). The CT and VT inputs refer to analog current transformer and voltage transformer signals used to monitor AC power lines. The UR-series relays support 1 A and 5 A CTs. The remote inputs and outputs provide a means of sharing digital point state information between remote UR-series devices. The remote outputs interface to the remote inputs of other UR-series devices. Remote outputs are FlexLogic™ operands inserted into IEC 61850 GSSE and GOOSE messages. The direct inputs and outputs provide a means of sharing digital point states between a number of UR-series IEDs over a dedicated fiber (single or multimode), RS422, or G.703 interface. No switching equipment is required as the IEDs are con- nected directly in a ring or redundant (dual) ring configuration. This feature is optimized for speed and intended for pilot- aided schemes, distributed logic applications, or the extension of the input/output capabilities of a single relay chassis. ������������ �������������� ��� ����������� ������ �������� ��������� �������������� ��������������� �������������� ��������������� ������������� �������������� ��������� ��������� ����� ������ ����� ������ ������ ����� ������ ������� ������� ������������������� ����������� �������������� ������������ ���������� ��������������� ������������� ������������� ��������������

1-5 1 GETTING STARTED 1.2 UR OVERVIEW 1 c) UR SCAN OPERATION The UR-series devices operate in a cyclic scan fashion. The device reads the inputs into an input status table, solves the logic program (FlexLogic™ equation), and then sets each output to the appropriate state in an output status table. Any resulting task execution is priority interrupt-driven. Figure 1–3: UR-SERIES SCAN OPERATION 1.2.3 SOFTWARE ARCHITECTURE The firmware (software embedded in the relay) is designed in functional modules which can be installed in any relay as required. This is achieved with object-oriented design and programming (OOD/OOP) techniques. Object-oriented techniques involve the use of objects and classes. An object is defined as “a logical entity that contains both data and code that manipulates that data”. A class is the generalized form of similar objects. By using this concept, one can create a protection class with the protection elements as objects of the class, such as time overcurrent, instanta- neous overcurrent, current differential, undervoltage, overvoltage, underfrequency, and distance. These objects represent completely self-contained software modules. The same object-class concept can be used for metering, input/output control, hmi, communications, or any functional entity in the system. Employing OOD/OOP in the software architecture of the L30 achieves the same features as the hardware architecture: modularity, scalability, and flexibility. The application software for any UR-series device (for example, feeder protection, transformer protection, distance protection) is constructed by combining objects from the various functionality classes. This results in a common look and feel across the entire family of UR-series platform-based applications. 1.2.4 IMPORTANT CONCEPTS As described above, the architecture of the UR-series relays differ from previous devices. To achieve a general understand- ing of this device, some sections of Chapter 5 are quite helpful. The most important functions of the relay are contained in “elements”. A description of the UR-series elements can be found in the Introduction to elements section in chapter 5. Examples of simple elements, and some of the organization of this manual, can be found in the Control elements section of chapter 5. A description of how digital signals are used and routed within the relay is contained in the Introduction to Flex- Logic™ section in chapter 5. ������������ ������������ ������������� ������������ ������������������� ������������������� �������������������� ����������� ����������� �����������

GE Multilin 1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED 1 1.3ENERVISTA UR SETUP SOFTWARE 1.3.1 PC REQUIREMENTS The faceplate keypad and display or the EnerVista UR Setup software interface can be used to communicate with the relay. The EnerVista UR Setup software interface is the preferred method to edit settings and view actual values because the PC monitor can display more information in a simple comprehensible format. The following minimum requirements must be met for the EnerVista UR Setup software to properly operate on a PC. • Pentium class or higher processor (Pentium II 300 MHz or higher recommended) • Windows 95, 98, 98SE, ME, NT 4.0 (Service Pack 4 or higher), 2000, XP • Internet Explorer 4.0 or higher • 128 MB of RAM (256 MB recommended) • 200 MB of available space on system drive and 200 MB of available space on installation drive • Video capable of displaying 800 x 600 or higher in high-color mode (16-bit color) • RS232 and/or Ethernet port for communications to the relay The following qualified modems have been tested to be compliant with the L30 and the EnerVista UR Setup software. • US Robotics external 56K FaxModem 5686 • US Robotics external Sportster 56K X2 • PCTEL 2304WT V.92 MDC internal modem 1.3.2 INSTALLATION After ensuring the minimum requirements for using EnerVista UR Setup are met (see previous section), use the following procedure to install the EnerVista UR Setup from the enclosed GE EnerVista CD. 1. Insert the GE EnerVista CD into your CD-ROM drive. 2. Click the Install Now button and follow the installation instructions to install the no-charge EnerVista software. 3. When installation is complete, start the EnerVista Launchpad application. 4. Click the IED Setup section of the Launch Pad window. 5. In the EnerVista Launch Pad window, click the Add Product button and select the “L30 Line Current Differential Sys- tem” from the Install Software window as shown below. Select the “Web” option to ensure the most recent software

1-7 1 GETTING STARTED 1.3 ENERVISTA UR SETUP SOFTWARE 1 release, or select “CD” if you do not have a web connection, then click the Add Now button to list software items for the L30. 6. EnerVista Launchpad will obtain the software from the Web or CD and automatically start the installation program. 7. Select the complete path, including the new directory name, where the EnerVista UR Setup will be installed. 8. Click on Next to begin the installation. The files will be installed in the directory indicated and the installation program will automatically create icons and add EnerVista UR Setup to the Windows start menu. 9. Click Finish to end the installation. The UR-series device will be added to the list of installed IEDs in the EnerVista Launchpad window, as shown below. 1.3.3 CONFIGURING THE L30 FOR SOFTWARE ACCESS a) OVERVIEW The user can connect remotely to the L30 through the rear RS485 port or the rear Ethernet port with a PC running the EnerVista UR Setup software. The L30 can also be accessed locally with a computer through the front panel RS232 port or the rear Ethernet port using the Quick Connect feature.

GE Multilin 1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED 1 • To configure the L30 for remote access via the rear RS485 port(s), refer to the Configuring Serial Communications section. • To configure the L30 for remote access via the rear Ethernet port, refer to the Configuring Ethernet Communications section. An Ethernet module must be specified at the time of ordering. • To configure the L30 for local access with a computer through either the front RS232 port or rear Ethernet port, refer to the Using the Quick Connect Feature section. An Ethernet module must be specified at the time of ordering for Ether- net communications. b) CONFIGURING SERIAL COMMUNICATIONS Before starting, verify that the serial cable is properly connected to the RS485 terminals on the back of the device. The faceplate RS232 port is intended for local use and is not described in this section; see the Using the Quick Connect Feature section for details on configuring the RS232 port. A computer with an RS232 port and a serial cable is required. To use the RS485 port at the back of the relay, a GE Multilin F485 converter (or compatible RS232-to-RS485 converter) is required. See the F485 instruction manual for details. 1. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details. 2. Connect the computer to the F485 and the F485 to the RS485 terminal on the back of the UR device, or connect directly the computer to the RS232 port on the front of the relay. 3. Select the “UR” device from the EnerVista Launchpad to start EnerVista UR Setup. 4. Click the Device Setup button to open the Device Setup window and click the Add Site button to define a new site. 5. Enter the desired site name in the “Site Name” field. If desired, a short description of site can also be entered along with the display order of devices defined for the site. In this example, we will use “Location 1” as the site name. Click the OK button when complete. 6. The new site will appear in the upper-left list in the EnerVista UR Setup window. Click the Device Setup button then select the new site to re-open the Device Setup window. 7. Click the Add Device button to define the new device. 8. Enter the desired name in the “Device Name” field and a description (optional) of the site.

1-9 1 GETTING STARTED 1.3 ENERVISTA UR SETUP SOFTWARE 1 9. Select “Serial” from the Interface drop-down list. This will display a number of interface parameters that must be entered for proper serial communications. Figure 1–4: CONFIGURING SERIAL COMMUNICATIONS 10. Enter the COM port used by the computer, the baud rate, and parity settings from the front panel SETTINGS  PRODUCT SETUP  COMMUNICATIONS  SERIAL PORTS menu, and the relay slave address setting from the front panel SETTINGS  PRODUCT SETUP  COMMUNICATIONS  MODBUS PROTOCOL  MODBUS SLAVE ADDRESS menu in their respective fields. 11. Click the Read Order Code button to connect to the L30 device and upload the order code. If a communications error occurs, ensure that the EnerVista UR Setup serial communications values entered in the previous step correspond to the relay setting values. 12. Click “OK” when the relay order code has been received. The new device will be added to the Site List window (or Online window) located in the top left corner of the main EnerVista UR Setup window. The Site Device has now been configured for RS232 communications. Proceed to the Connecting to the L30 section to begin communications. c) CONFIGURING ETHERNET COMMUNICATIONS Before starting, verify that the Ethernet network cable is properly connected to the Ethernet port on the back of the relay. To set up the relay for Ethernet communications, you define a Site, then add the relay as a Device at that site.The computer and UR device must be on the same subnet. 1. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details. 2. Select the “UR” device from the EnerVista Launchpad to start EnerVista UR Setup. 3. Click the Device Setup button to open the Device Setup window, then click the Add Site button to define a new site. 4. Enter the desired site name in the “Site Name” field. If desired, a short description of site can also be entered along with the display order of devices defined for the site. In this example, we will use “Location 2” as the site name. Click the OK button when complete. 5. The new site will appear in the upper-left list in the EnerVista UR Setup window. Click the Device Setup button then select the new site to re-open the Device Setup window. 6. Click the Add Device button to define the new device.

GE Multilin 1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED 1 7. Enter the desired name in the “Device Name” field and a description (optional) of the site. 8. Select “Ethernet” from the Interface drop-down list. This will display a number of interface parameters that must be entered for proper Ethernet functionality. Figure 1–5: CONFIGURING ETHERNET COMMUNICATIONS 9. Enter the relay IP address specified in the front panel SETTINGS  PRODUCT SETUP  COMMUNICATIONS  NET- WORK  IP ADDRESS in the “IP Address” field. 10. Enter the relay slave address and Modbus port address values from the respective settings in the front panel SETTINGS  PRODUCT SETUP  COMMUNICATIONS  MODBUS PROTOCOL menu. 11. Click the Read Order Code button to connect to the L30 device and upload the order code. If an communications error occurs, ensure that the three EnerVista UR Setup values entered in the previous steps correspond to the relay setting values. 12. Click OK when the relay order code has been received. The new device will be added to the Site List window (or Online window) located in the top left corner of the main EnerVista UR Setup window. The Site Device has now been configured for Ethernet communications. Proceed to the Connecting to the L30 section to begin communications. 1.3.4 USING THE QUICK CONNECT FEATURE a) USING QUICK CONNECT VIA THE FRONT PANEL RS232 PORT Before starting, verify that the serial cable is properly connected from the laptop computer to the front panel RS232 port with a straight-through 9-pin to 9-pin RS232 cable. 1. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details. 2. Select the “UR” device from the EnerVista Launchpad to start EnerVista UR Setup.

1-11 1 GETTING STARTED 1.3 ENERVISTA UR SETUP SOFTWARE 1 3. Click the Quick Connect button to open the Quick Connect dialog box. 4. Select the Serial interface and the correct COM Port, then click Connect. 5. The EnerVista UR Setup software will create a site named “Quick Connect” with a corresponding device also named “Quick Connect” and display them on the upper-left corner of the screen. Expand the sections to view data directly from the L30 device. Each time the EnerVista UR Setup software is initialized, click the Quick Connect button to establish direct communica- tions to the L30. This ensures that configuration of the EnerVista UR Setup software matches the L30 model number. b) USING QUICK CONNECT VIA THE REAR ETHERNET PORTS To use the Quick Connect feature to access the L30 from a computer through Ethernet, first assign an IP address to the relay from the front panel keyboard. 1. Press the MENU key until the SETTINGS menu is displayed. 2. Navigate to the SETTINGS  PRODUCT SETUP  COMMUNICATIONS  NETWORK  IP ADDRESS setting. 3. Enter an IP address of “1.1.1.1” and select the ENTER key to save the value. 4. In the same menu, select the SUBNET IP MASK setting. 5. Enter a subnet IP address of “255.0.0.0” and press the ENTER key to save the value. Next, use an Ethernet cross-over cable to connect the computer to the rear Ethernet port. The pinout for an Ethernet cross- over cable is shown below. Figure 1–6: ETHERNET CROSS-OVER CABLE PIN LAYOUT Now, assign the computer an IP address compatible with the relay’s IP address. 842799A1.CDR END 1 END 2 Pin Wire color Diagram Pin Wire color Diagram 1 White/orange 1 White/green 2 Orange 2 Green 3 White/green 3 White/orange 4 Blue 4 Blue 5 White/blue 5 White/blue 6 Green 6 Orange 7 White/brown 7 White/brown 8 Brown 8 Brown 1 2 3 4 5 6 7 8

GE Multilin 1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED 1 1. From the Windows desktop, right-click the My Network Places icon and select Properties to open the network con- nections window. 2. Right-click the Local Area Connection icon and select Properties. 3. Select the Internet Protocol (TCP/IP) item from the list provided and click the Properties button. 4. Click on the “Use the following IP address” box.

1-13 1 GETTING STARTED 1.3 ENERVISTA UR SETUP SOFTWARE 1 5. Enter an IP address with the first three numbers the same as the IP address of the L30 relay and the last number dif- ferent (in this example, 1.1.1.2). 6. Enter a subnet mask equal to the one set in the L30 (in this example, 255.0.0.0). 7. Click OK to save the values. Before continuing, it will be necessary to test the Ethernet connection. 1. Open a Windows console window by selecting Start > Run from the Windows Start menu and typing “cmd”. 2. Type the following command: C:\WINNT>ping 1.1.1.1 3. If the connection is successful, the system will return four replies as follows: Pinging 1.1.1.1 with 32 bytes of data: Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Ping statistics for 1.1.1.1: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip time in milliseconds: Minimum = 0ms, Maximum = 0ms, Average = 0 ms 4. Note that the values for time and TTL will vary depending on local network configuration. If the following sequence of messages appears when entering the C:\WINNT>ping 1.1.1.1 command: Pinging 1.1.1.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 1.1.1.1: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Approximate round trip time in milliseconds: Minimum = 0ms, Maximum = 0ms, Average = 0 ms Pinging 1.1.1.1 with 32 bytes of data: Verify the physical connection between the L30 and the laptop computer, and double-check the programmed IP address in the PRODUCT SETUP  COMMUNICATIONS  NETWORK  IP ADDRESS setting, then repeat step 2 in the above procedure. If the following sequence of messages appears when entering the C:\WINNT>ping 1.1.1.1 command: Pinging 1.1.1.1 with 32 bytes of data: Hardware error. Hardware error. Hardware error. Hardware error. Ping statistics for 1.1.1.1: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Approximate round trip time in milliseconds: Minimum = 0ms, Maximum = 0ms, Average = 0 ms Pinging 1.1.1.1 with 32 bytes of data: Verify the physical connection between the L30 and the laptop computer, and double-check the programmed IP address in the PRODUCT SETUP  COMMUNICATIONS  NETWORK  IP ADDRESS setting, then repeat step 2 in the above procedure. If the following sequence of messages appears when entering the C:\WINNT>ping 1.1.1.1 command:

GE Multilin 1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED 1 Pinging 1.1.1.1 with 32 bytes of data: Destination host unreachable. Destination host unreachable. Destination host unreachable. Destination host unreachable. Ping statistics for 1.1.1.1: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Approximate round trip time in milliseconds: Minimum = 0ms, Maximum = 0ms, Average = 0 ms Pinging 1.1.1.1 with 32 bytes of data: Verify the IP address is programmed in the local PC by entering the ipconfig command in the command window. C:\WINNT>ipconfig Windows 2000 IP Configuration Ethernet adapter : Connection-specific DNS suffix. . : IP Address. . . . . . . . . . . . : 0.0.0.0 Subnet Mask . . . . . . . . . . . : 0.0.0.0 Default Gateway . . . . . . . . . : Ethernet adapter Local Area Connection: Connection-specific DNS suffix . : IP Address. . . . . . . . . . . . : 1.1.1.2 Subnet Mask . . . . . . . . . . . : 255.0.0.0 Default Gateway . . . . . . . . . : C:\WINNT> It may be necessary to restart the laptop for the change in IP address to take effect (Windows 98 or NT). Before using the Quick Connect feature through the Ethernet port, it is necessary to disable any configured proxy settings in Internet Explorer. 1. Start the Internet Explorer software. 2. Select the Tools > Internet Options menu item and click on Connections tab. 3. Click on the LAN Settings button to open the following window. 4. Ensure that the “Use a proxy server for your LAN” box is not checked. If this computer is used to connect to the Internet, re-enable any proxy server settings after the laptop has been discon- nected from the L30 relay. 1. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE enerVista CD or online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details. 2. Start the Internet Explorer software.

1-15 1 GETTING STARTED 1.3 ENERVISTA UR SETUP SOFTWARE 1 3. Select the “UR” device from the EnerVista Launchpad to start EnerVista UR Setup. 4. Click the Quick Connect button to open the Quick Connect dialog box. 5. Select the Ethernet interface and enter the IP address assigned to the L30, then click Connect. 6. The EnerVista UR Setup software will create a site named “Quick Connect” with a corresponding device also named “Quick Connect” and display them on the upper-left corner of the screen. Expand the sections to view data directly from the L30 device. Each time the EnerVista UR Setup software is initialized, click the Quick Connect button to establish direct communica- tions to the L30. This ensures that configuration of the EnerVista UR Setup software matches the L30 model number. When direct communications with the L30 via Ethernet is complete, make the following changes: 1. From the Windows desktop, right-click the My Network Places icon and select Properties to open the network con- nections window. 2. Right-click the Local Area Connection icon and select the Properties item. 3. Select the Internet Protocol (TCP/IP) item from the list provided and click the Properties button. 4. Set the computer to “Obtain a relay address automatically” as shown below. If this computer is used to connect to the Internet, re-enable any proxy server settings after the laptop has been discon- nected from the L30 relay. AUTOMATIC DISCOVERY OF ETHERNET DEVICES The EnerVista UR Setup software can automatically discover and communicate to all UR-series IEDs located on an Ether- net network. Using the Quick Connect feature, a single click of the mouse will trigger the software to automatically detect any UR-series relays located on the network. The EnerVista UR Setup software will then proceed to configure all settings and order code options in the Device Setup menu, for the purpose of communicating to multiple relays. This feature allows the user to identify and interrogate all UR-series devices in a particular location.

GE Multilin 1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED 1 1.3.5 CONNECTING TO THE L30 RELAY When unable to connect because of an "ACCESS VIOLATION," access Device Setup and refresh the order code for the device. 1. Open the Display Properties window through the Site List tree as shown below: 2. The Display Properties window will open with a status indicator on the lower left of the EnerVista UR Setup window. 3. If the status indicator is red, verify that the Ethernet network cable is properly connected to the Ethernet port on the back of the relay and that the relay has been properly setup for communications (steps A and B earlier). If a relay icon appears in place of the status indicator, than a report (such as an oscillography or event record) is open. Close the report to re-display the green status indicator. 4. The Display Properties settings can now be edited, printed, or changed according to user specifications. Refer to chapter 4 in this manual and the EnerVista UR Setup Help File for more information about the using the EnerVista UR Setup software interface. QUICK ACTION HOT LINKS The EnerVista UR Setup software has several new quick action buttons that provide users with instant access to several functions that are often performed when using L30 relays. From the online window, users can select which relay to interro- gate from a pull-down window, then click on the button for the action they wish to perform. The following quick action func- tions are available: • View the L30 event record. • View the last recorded oscillography record. • View the status of all L30 inputs and outputs. • View all of the L30 metering values. • View the L30 protection summary. • Generate a service report. 842743A3.CDR Communications status indicators: Green = OK Red = No communications UR icon = report is open Quick action hot links Expand the site list by double-clicking or selecting the +/– box. NOTE

1-17 1 GETTING STARTED 1.4 UR HARDWARE 1 1.4UR HARDWARE 1.4.1 MOUNTING AND WIRING Please refer to Chapter 3: Hardware for detailed mounting and wiring instructions. Review all WARNINGS and CAUTIONS carefully. 1.4.2 COMMUNICATIONS The EnerVista UR Setup software communicates to the relay via the faceplate RS232 port or the rear panel RS485 / Ether- net ports. To communicate via the faceplate RS232 port, a standard straight-through serial cable is used. The DB-9 male end is connected to the relay and the DB-9 or DB-25 female end is connected to the PC COM1 or COM2 port as described in the CPU communications ports section of chapter 3. Figure 1–7: RELAY COMMUNICATIONS OPTIONS To communicate through the L30 rear RS485 port from a PC RS232 port, the GE Multilin RS232/RS485 converter box is required. This device (catalog number F485) connects to the computer using a “straight-through” serial cable. A shielded twisted-pair (20, 22, or 24 AWG) connects the F485 converter to the L30 rear communications port. The converter terminals (+, –, GND) are connected to the L30 communication module (+, –, COM) terminals. Refer to the CPU communications ports section in chapter 3 for option details. The line should be terminated with an R-C network (that is, 120 Ω, 1 nF) as described in the chapter 3. 1.4.3 FACEPLATE DISPLAY All messages are displayed on a 2 × 20 backlit liquid crystal display (LCD) to make them visible under poor lighting condi- tions. While the keypad and display are not actively being used, the display will default to user-defined messages. Any high priority event driven message will automatically override the default message and appear on the display. � � � � ��������� � � � � � � � � � �������� ����������� �������� ������� ������ ����� ������ ������������������� ����� ������� �������� ���������������� ������������������������ ������������� ��������������� ������������� ��������������� ������� �������������� ����� ��������� ��������� ������������

GE Multilin 1.5 USING THE RELAY 1 GETTING STARTED 1 1.5USING THE RELAY 1.5.1 FACEPLATE KEYPAD Display messages are organized into pages under the following headings: actual values, settings, commands, and targets. The MENU key navigates through these pages. Each heading page is broken down further into logical subgroups. The MESSAGE keys navigate through the subgroups. The VALUE keys scroll increment or decrement numerical setting values when in programming mode. These keys also scroll through alphanumeric values in the text edit mode. Alterna- tively, values may also be entered with the numeric keypad. The decimal key initiates and advance to the next character in text edit mode or enters a decimal point. The HELP key may be pressed at any time for context sensitive help messages. The ENTER key stores altered setting values. 1.5.2 MENU NAVIGATION Press the MENU key to select the desired header display page (top-level menu). The header title appears momentarily fol- lowed by a header display page menu item. Each press of the MENU key advances through the following main heading pages: • Actual values. • Settings. • Commands. • Targets. • User displays (when enabled). 1.5.3 MENU HIERARCHY The setting and actual value messages are arranged hierarchically. The header display pages are indicated by double scroll bar characters (), while sub-header pages are indicated by single scroll bar characters (). The header display pages represent the highest level of the hierarchy and the sub-header display pages fall below this level. The MESSAGE UP and DOWN keys move within a group of headers, sub-headers, setting values, or actual values. Continually pressing the MESSAGE RIGHT key from a header display displays specific information for the header category. Conversely, contin- ually pressing the MESSAGE LEFT key from a setting value or actual value display returns to the header display. 1.5.4 RELAY ACTIVATION The relay is defaulted to the “Not Programmed” state when it leaves the factory. This safeguards against the installation of a relay whose settings have not been entered. When powered up successfully, the Trouble LED will be on and the In Ser- vice LED off. The relay in the “Not Programmed” state will block signaling of any output relay. These conditions will remain until the relay is explicitly put in the “Programmed” state. Select the menu message SETTINGS  PRODUCT SETUP  INSTALLATION  RELAY SETTINGS HIGHEST LEVEL LOWEST LEVEL (SETTING VALUE)  SETTINGS  PRODUCT SETUP  SECURITY  ACCESS LEVEL: Restricted  SETTINGS  RELAY SETTINGS: Not Programmed

1-19 1 GETTING STARTED 1.5 USING THE RELAY 1 To put the relay in the “Programmed” state, press either of the VALUE keys once and then press ENTER. The faceplate Trouble LED will turn off and the In Service LED will turn on. The settings for the relay can be programmed manually (refer to Chapter 5) via the faceplate keypad or remotely (refer to the EnerVista UR Setup help file) via the EnerVista UR Setup software interface. 1.5.5 RELAY PASSWORDS It is recommended that passwords be set up for each security level and assigned to specific personnel. There are two user password security access levels, COMMAND and SETTING: 1. COMMAND The COMMAND access level restricts the user from making any settings changes, but allows the user to perform the fol- lowing operations: • change state of virtual inputs • clear event records • clear oscillography records • operate user-programmable pushbuttons 2. SETTING The SETTING access level allows the user to make any changes to any of the setting values. Refer to the Changing Settings section in Chapter 4 for complete instructions on setting up security level pass- words. 1.5.6 FLEXLOGIC™ CUSTOMIZATION FlexLogic™ equation editing is required for setting up user-defined logic for customizing the relay operations. See the Flex- Logic™ section in Chapter 5 for additional details. NOTE

GE Multilin 1.5 USING THE RELAY 1 GETTING STARTED 1 1.5.7 COMMISSIONING The L30 requires a minimum amount of maintenance when it is commissioned into service. Since the L30 is a microproces- sor-based relay, its characteristics do not change over time. As such, no further functional tests are required. Expected ser- vice life is 20 years for UR devices manufactured June 2014 or later when applied in a controlled indoors environment and electrical conditions within specification. Furthermore, the L30 performs a number of continual self-tests and takes the necessary action in case of any major errors (see the Relay Self-tests section in chapter 7 for details). However, it is recommended that L30 maintenance be scheduled with other system maintenance. This maintenance may involve the in-service, out-of-service, or unscheduled maintenance. In-service maintenance: 1. Visual verification of the analog values integrity such as voltage and current (in comparison to other devices on the cor- responding system). 2. Visual verification of active alarms, relay display messages, and LED indications. 3. LED test. 4. Visual inspection for any damage, corrosion, dust, or loose wires. 5. Event recorder file download with further events analysis. Out-of-service maintenance: 1. Check wiring connections for firmness. 2. Analog values (currents, voltages, RTDs, analog inputs) injection test and metering accuracy verification. Calibrated test equipment is required. 3. Protection elements setting verification (analog values injection or visual verification of setting file entries against relay settings schedule). 4. Contact inputs and outputs verification. This test can be conducted by direct change of state forcing or as part of the system functional testing. 5. Visual inspection for any damage, corrosion, or dust. 6. Event recorder file download with further events analysis. 7. LED Test and pushbutton continuity check. Unscheduled maintenance such as during a disturbance causing system interruption: 1. View the event recorder and oscillography or fault report for correct operation of inputs, outputs, and elements. If it is concluded that the relay or one of its modules is of concern, contact GE Multilin for prompt service.

2-1 2 PRODUCT DESCRIPTION 2.1 INTRODUCTION 2 2 PRODUCT DESCRIPTION 2.1INTRODUCTION 2.1.1 OVERVIEW The L30 Line Current Differential System is a digital current differential relay system with an integral communications chan- nel interface. The L30 is intended to provide complete protection for transmission lines of any voltage level. Both three phase and single phase tripping schemes are available. Models of the L30 are available for application on both two and three terminal lines. The L30 uses per phase differential at 64 kbps transmitting two phaselets per cycle. The current differential scheme is based on innovative patented techniques developed by GE. The L30 algorithms are based on the Fourier transform– phaselet approach and an adaptive statistical restraint. The restraint is similar to a traditional percentage differential scheme, but is adaptive based on relay measurements. When used with a 64 kbps channel, the innovative phaselets approach yields an operating time of 1.0 to 1.5 cycles (typical). The adaptive statistical restraint approach provides both more sensitive and more accurate fault sensing. This allows the L30 to detect relatively higher impedance single line to ground faults that existing systems may not. The basic current differential element operates on current input only. Long lines with significant capacitance can benefit from charging current compensation if terminal voltage measurements are applied to the relay. The voltage input is also used for some protection and monitoring features such as directional ele- ments, fault locator, metering, and distance backup. The L30 is designed to operate over different communications links with various degrees of noise encountered in power systems and communications environments. Since correct operation of the relay is completely dependent on data received from the remote end, special attention must be paid to information validation. The L30 incorporates a high degree of secu- rity by using a 32-bit CRC (cyclic redundancy code) inter-relay communications packet. In addition to current differential protection, the relay provides multiple backup protection for phase and ground faults. For overcurrent protection, the time overcurrent curves may be selected from a selection of standard curve shapes or a custom FlexCurve™ for optimum co-ordination. The L30 incorporates charging current compensation for applications on very long transmission lines without loss of sensi- tivity. The line capacitive current is removed from the terminal phasors. For breaker-and-a-half or ring applications, the L30 design provides secure operation during external faults with possible CT saturation. Voltage, current, and power metering is built into the relay as a standard feature. Current parameters are available as total waveform RMS magnitude, or as fundamental frequency only RMS magnitude and angle (phasor). Settings and actual values can be accessed from the front panel or EnerVista software. The following single line diagram illustrates the relay functionality using American National Standards Institute (ANSI) device numbers. Table 2–1: ANSI DEVICE NUMBERS AND FUNCTIONS DEVICE NUMBER FUNCTION DEVICE NUMBER FUNCTION 25 Synchrocheck 51N Neutral time overcurrent 27P Phase undervoltage 51P Phase time overcurrent 27X Auxiliary undervoltage 51_2 Negative-sequence time overcurrent 49 Thermal overload protection 52 AC circuit breaker 50BF Breaker failure 59P Phase overvoltage 50DD Current disturbance detector 59X Auxiliary overvoltage 50G Ground instantaneous overcurrent 67N Neutral directional overcurrent 50N Neutral instantaneous overcurrent 67P Phase directional overcurrent 50P Phase instantaneous overcurrent 79 Automatic recloser 50_2 Negative-sequence instantaneous overcurrent 81U Underfrequency 51G Ground time overcurrent 87L Segregated line current differential

GE Multilin 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION 2 Figure 2–1: SINGLE LINE DIAGRAM Table 2–2: OTHER DEVICE FUNCTIONS FUNCTION FUNCTION FUNCTION Breaker arcing current (I2t) Fault locator and fault reporting Oscillography Breaker control FlexElements™ (8) Setting groups (6) Contact inputs (up to 96) FlexLogic™ equations Stub bus Contact outputs (up to 64) IEC 61850 communications (optional) Synchrophasors Control pushbuttons Channel tests Time synchronization over SNTP CT failure detector Metering: Current, voltage, power, frequency, power factor, 87L current, local and remote phasors Transducer inputs and outputs Data logger User-definable displays Digital counters (8) User-programmable LEDs Digital elements (48) Modbus communications User-programmable pushbuttons Direct inputs (8 per pilot channel) Modbus user map User-programmable self-tests Disconnect switches Non-volatile latches Virtual inputs (64) DNP 3.0 or IEC 60870-5-104 protocol Non-volatile selector switch Virtual outputs (96) Event recorder Open Pole Detector VT fuse failure ������������ ��������������������������� �� ���������� ����� ���� ����������������������� ������������������������������ �������� ����������� ���������� ������ ��� ��� ���� ���� ��� ���� �� ��� ��� ��� ��� ��� �� ��� ��� ��� ��� ���� ��� ���� ��� ��

2-3 2 PRODUCT DESCRIPTION 2.1 INTRODUCTION 2 2.1.2 FEATURES LINE CURRENT DIFFERENTIAL: • Phase segregated, high-speed digital current differential system. • Overhead and underground AC transmission lines, series compensated lines. • Two-terminal and three-terminal line applications. • Zero-sequence removal for application on lines with tapped transformers connected in a grounded wye on the line side. • GE phaselets approach based on the Discrete Fourier Transform with 64 samples per cycle and transmitting two time- stamped phaselets per cycle. • Adaptive restraint approach improving sensitivity and accuracy of fault sensing. • Accommodates in-zone transformer with a magnitude and phase compensation and second harmonic inhibit during transformer magnetizing inrush. • Continuous clock synchronization via the distributed synchronization technique. • Increased transient stability through DC decaying offset removal. • Accommodates up to five times CT ratio differences. • Peer-to-peer (master-master) architecture changing to master-slave via DTT (if channel fails) at 64 kbps. • Charging current compensation. • Interfaces direct fiber, multiplexed RS422 and G.703 connections with relay ID check. • Per-phase line differential protection direct transfer trip plus eight user-assigned pilot signals via the communications channel. • Secure 32-bit CRC protection against communications errors. • Channel asymmetry (up to 10 ms) compensation using GPS satellite-controlled clock. BACKUP PROTECTION: • DTT provision for pilot schemes. • Two-element time overcurrent and two-element instantaneous overcurrent directional phase overcurrent protection. • Two-element time overcurrent and two-element instantaneous overcurrent directional zero-sequence protection. • Two-element time overcurrent and two-element instantaneous overcurrent negative-sequence overcurrent protection. • Undervoltage and overvoltage protection. ADDITIONAL PROTECTION: • Breaker failure protection. • Stub bus protection. • VT and CT supervision. • GE Multilin sources approach allowing grouping of different CTs and VTs from multiple input channels. • Open pole detection. • Breaker trip coil supervision and seal-in of trip command. • FlexLogic™ allowing creation of user-defined distributed protection and control logic. CONTROL: • One and two breaker configuration for breaker-and-a-half and ring bus schemes, pushbutton control from the relay. • Auto-reclosing and synchrochecking. • Breaker arcing current.

GE Multilin 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION 2 MONITORING: • Oscillography of current, voltage, FlexLogic™ operands, and digital signals (1 × 128 cycles to 31 × 8 cycles configu- rable). • Events recorder: 1024 events. • Fault locator. METERING: • Actual 87L remote phasors, differential current, channel delay, and channel asymmetry at all line terminals of line cur- rent differential protection. • Line current, voltage, real power, reactive power, apparent power, power factor, and frequency. COMMUNICATIONS: • Front panel RS232 port: 19.2 kbps. • One or two rear RS485 ports: up to 115 kbps. • 10Base-F Ethernet port supporting the IEC 61850 protocol. 2.1.3 ORDERING a) OVERVIEW The L30 is available as a 19-inch rack horizontal mount or reduced-size (¾) vertical unit and consists of the following mod- ules: power supply, CPU, CT/VT, digital input and output, transducer input and output, and inter-relay communications. Each of these modules can be supplied in a number of configurations specified at the time of ordering. The information required to completely specify the relay is provided in the following tables (see chapter 3 for full details of relay modules). Order codes are subject to change without notice. CPU modules 9G, 9H, 9L, and 9M are obsolete. See http://www.gedigitalenergy.com/multilin/order.htm for the latest ordering options. The order code structure is dependent on the mounting option (horizontal or vertical) and the type of CT/VT modules (regu- lar CT/VT modules or the HardFiber modules). The order code options are described in the following sub-sections. NOTE

2-5 2 PRODUCT DESCRIPTION 2.1 INTRODUCTION 2 b) ORDER CODES WITH TRADITIONAL CTS AND VTS The order codes for the horizontal mount units with traditional CTs and VTs are shown below. Table 2–3: L30 ORDER CODES (HORIZONTAL UNITS) L30 - * ** - * * * - F ** - H ** - L ** - N ** - S ** - U ** - W/X ** Full Size Horizontal Mount BASE UNIT L30 | | | | | | | | | | | | Base Unit CPU E | | | | | | | | | | | RS485 and RS485 J | | | | | | | | | | | RS485, multi-mode ST 100Base-FX and 10/100Base-T K | | | | | | | | | | | RS485, multi-mode ST redundant 100Base-FX and 10/100Base-T N | | | | | | | | | | | RS485 and 10/100Base-T S | | | | | | | | | | | RS485 and six-port managed Ethernet switch SOFTWARE (IEC 61850 options not available with type E CPUs) 00 | | | | | | | | | | No software options 03 | | | | | | | | | | IEC 61850 06 | | | | | | | | | | One phasor measurement unit (PMU) 07 | | | | | | | | | | IEC 61850 and one phasor measurement unit (PMU) 18 | | | | | | | | | | Synchrocheck and three-pole autoreclose 19 | | | | | | | | | | Synchrocheck, three-pole autoreclose, and one phasor measurement unit (PMU) 24 | | | | | | | | | | In-zone transformer protection 25 | | | | | | | | | | In-zone transformer protection and IEC 61850 26 | | | | | | | | | | In-zone transformer protection and one phasor measurement unit (PMU) 27 | | | | | | | | | | In-zone transformer protection, IEC 61850, and one phasor measurement unit (PMU) MOUNT/COATING H | | | | | | | | | Horizontal (19” rack) A | | | | | | | | | Horizontal (19” rack) with harsh environmental coating FACEPLATE/ DISPLAY C | | | | | | | | English display D | | | | | | | | French display R | | | | | | | | Russian display A | | | | | | | | Chinese display P | | | | | | | | English display with 4 small and 12 large programmable pushbuttons G | | | | | | | | French display with 4 small and 12 large programmable pushbuttons S | | | | | | | | Russian display with 4 small and 12 large programmable pushbuttons B | | | | | | | | Chinese display with 4 small and 12 large programmable pushbuttons K | | | | | | | | Enhanced front panel with English display M | | | | | | | | Enhanced front panel with French display Q | | | | | | | | Enhanced front panel with Russian display U | | | | | | | | Enhanced front panel with Chinese display L | | | | | | | | Enhanced front panel with English display and user-programmable pushbuttons N | | | | | | | | Enhanced front panel with French display and user-programmable pushbuttons T | | | | | | | | Enhanced front panel with Russian display and user-programmable pushbuttons V | | | | | | | | Enhanced front panel with Chinese display and user-programmable pushbuttons W | | | | | | | | Enhanced front panel with Turkish display Y | | | | | | | | Enhanced front panel with Turkish display and user-programmable pushbuttons POWER SUPPLY (redundant supply must be same type as main supply) H | | | | | | | 125 / 250 V AC/DC power supply H | | | | | | RH 125 / 250 V AC/DC with redundant 125 / 250 V AC/DC power supply L | | | | | | | 24 to 48 V (DC only) power supply L | | | | | | RL 24 to 48 V (DC only) with redundant 24 to 48 V DC power supply CT/VT MODULES 8F | | | | | | Standard 4CT/4VT 8H | | | | | | Standard 8CT 8L | | | | | | Standard 4CT/4VT with enhanced diagnostics (required for PMU option) 8N | | | | | | Standard 8CT with enhanced diagnostics (required for PMU option) DIGITAL INPUTS/OUTPUTS XX XX XX XX XX | No Module 4A 4A 4A 4A 4A | 4 Solid-State (no monitoring) MOSFET outputs 4B 4B 4B 4B 4B | 4 Solid-State (voltage with optional current) MOSFET outputs 4C 4C 4C 4C 4C | 4 Solid-State (current with optional voltage) MOSFET outputs 4D 4D 4D 4D 4D | 16 digital inputs with Auto-Burnishing 4L 4L 4L 4L 4L | 14 Form-A (no monitoring) Latching outputs 67 67 67 67 67 | 8 Form-A (no monitoring) outputs 6A 6A 6A 6A 6A | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 digital inputs 6B 6B 6B 6B 6B | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 digital inputs 6C 6C 6C 6C 6C | 8 Form-C outputs 6D 6D 6D 6D 6D | 16 digital inputs 6E 6E 6E 6E 6E | 4 Form-C outputs, 8 digital inputs 6F 6F 6F 6F 6F | 8 Fast Form-C outputs 6G 6G 6G 6G 6G | 4 Form-A (voltage with optional current) outputs, 8 digital inputs 6H 6H 6H 6H 6H | 6 Form-A (voltage with optional current) outputs, 4 digital inputs 6K 6K 6K 6K 6K | 4 Form-C and 4 Fast Form-C outputs 6L 6L 6L 6L 6L | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 digital inputs 6M 6M 6M 6M 6M | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 digital inputs 6N 6N 6N 6N 6N | 4 Form-A (current with optional voltage) outputs, 8 digital inputs 6P 6P 6P 6P 6P | 6 Form-A (current with optional voltage) outputs, 4 digital inputs 6R 6R 6R 6R 6R | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 digital inputs 6S 6S 6S 6S 6S | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 digital inputs 6T 6T 6T 6T 6T | 4 Form-A (no monitoring) outputs, 8 digital inputs 6U 6U 6U 6U 6U | 6 Form-A (no monitoring) outputs, 4 digital inputs 6V 6V 6V 6V 6V | 2 Form-A outputs, 1 Form-C output, 1 Form-A latching output, 8 digital inputs TRANSDUCER INPUTS/OUTPUTS (select a maximum of 3 per unit) 5A 5A 5A 5A 5A | 4 DCmA inputs, 4 DCmA outputs (only one 5A module is allowed) 5C 5C 5C 5C 5C | 8 RTD inputs 5D 5D 5D 5D 5D | 4 RTD inputs, 4 DCmA outputs (only one 5D module is allowed) 5E 5E 5E 5E 5E | 4 RTD inputs, 4 DCmA inputs 5F 5F 5F 5F 5F | 8 DCmA inputs INTER-RELAY COMMUNICATIONS (select a maximum of 1 per unit) 2A 2A C37.94SM, 1300nm single-mode, ELED, 1 channel single-mode 2B 2B C37.94SM, 1300nm single-mode, ELED, 2 channel single-mode 2E 2E Bi-phase, single channel 2F 2F Bi-phase, dual channel 2G 2G IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel 2H 2H IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels | 2S Six-port managed Ethernet switch with high voltage supply (110 to 250 V DC / 100 to 240 V AC) | 2T Six-port managed Ethernet switch with low voltage supply (48 V DC) 72 72 1550 nm, single-mode, LASER, 1 Channel 73 73 1550 nm, single-mode, LASER, 2 Channel 74 74 Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, LASER 75 75 Channel 1 - G.703; Channel 2 - 1550 nm, Single-mode LASER 76 76 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 1 Channel 77 77 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels 7A 7A 820 nm, multi-mode, LED, 1 Channel 7B 7B 1300 nm, multi-mode, LED, 1 Channel 7C 7C 1300 nm, single-mode, ELED, 1 Channel 7D 7D 1300 nm, single-mode, LASER, 1 Channel 7E 7E Channel 1 - G.703; Channel 2 - 820 nm, multi-mode 7F 7F Channel 1 - G.703; Channel 2 - 1300 nm, multi-mode 7G 7G Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED 7H 7H 820 nm, multi-mode, LED, 2 Channels 7I 7I 1300 nm, multi-mode, LED, 2 Channels 7J 7J 1300 nm, single-mode, ELED, 2 Channels 7K 7K 1300 nm, single-mode, LASER, 2 Channels 7L 7L Channel 1 - RS422; Channel 2 - 820 nm, multi-mode, LED 7M 7M Channel 1 - RS422; Channel 2 - 1300 nm, multi-mode, LED 7N 7N Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED 7P 7P Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER 7Q 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER 7R 7R G.703, 1 Channel 7S 7S G.703, 2 Channels 7T 7T RS422, 1 Channel 7V 7V RS422, 2 Channels, 2 Clock Inputs 7W 7W RS422, 2 Channels

GE Multilin 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION 2 The order codes for the reduced size vertical mount units with traditional CTs and VTs are shown below. Table 2–4: L30 ORDER CODES (REDUCED SIZE VERTICAL UNITS) L30 - * ** - * * * - F ** - H ** - L ** - N ** - R ** Reduced Size Vertical Mount BASE UNIT L30 | | | | | | | | | | Base Unit CPU E | | | | | | | | | RS485 and RS485 J | | | | | | | | | RS485, multi-mode ST 100Base-FX and 10/100Base-T K | | | | | | | | | RS485, multi-mode ST redundant 100Base-FX and 10/100Base-T N | | | | | | | | | RS485 and 10/100Base-T SOFTWARE (IEC 61850 options not available with type E CPUs) 00 | | | | | | | | No software options 03 | | | | | | | | IEC 61850 06 | | | | | | | | Phasor measurement unit (PMU) 07 | | | | | | | | IEC 61850 and phasor measurement unit (PMU) 18 | | | | | | | | Synchrocheck and three-pole autoreclose 19 | | | | | | | | Synchrocheck, three-pole autoreclose, and one phasor measurement unit (PMU) 24 | | | | | | | | In-zone transformer protection 25 | | | | | | | | In-zone transformer protection and IEC 61850 26 | | | | | | | | In-zone transformer protection and one phasor measurement unit (PMU) 27 | | | | | | | | In-zone transformer protection, IEC 61850, and one phasor measurement unit (PMU) MOUNT/COATING V | | | | | | | Vertical (3/4 rack) B | | | | | | | Vertical (3/4 rack) with harsh environmental coating FACEPLATE/ DISPLAY F | | | | | | English display D | | | | | | French display R | | | | | | Russian display A | | | | | | Chinese display K | | | | | | Enhanced front panel with English display M | | | | | | Enhanced front panel with French display Q | | | | | | Enhanced front panel with Russian display U | | | | | | Enhanced front panel with Chinese display L | | | | | | Enhanced front panel with English display and user-programmable pushbuttons N | | | | | | Enhanced front panel with French display and user-programmable pushbuttons T | | | | | | Enhanced front panel with Russian display and user-programmable pushbuttons V | | | | | | Enhanced front panel with Chinese display and user-programmable pushbuttons W | | | | | | Enhanced front panel with Turkish display Y | | | | | | Enhanced front panel with Turkish display and user-programmable pushbuttons POWER SUPPLY H | | | | | 125 / 250 V AC/DC power supply L | | | | | 24 to 48 V (DC only) power supply CT/VT MODULES 8F | | | | Standard 4CT/4VT 8H | | | | Standard 8CT 8L | | | | Standard 4CT/4VT with enhanced diagnostics (required for PMU option) 8N | | | | Standard 8CT with enhanced diagnostics (required for PMU option) DIGITAL INPUTS/OUTPUTS XX XX XX | No Module 4A 4A 4A | 4 Solid-State (no monitoring) MOSFET outputs 4B 4B 4B | 4 Solid-State (voltage with optional current) MOSFET outputs 4C 4C 4C | 4 Solid-State (current with optional voltage) MOSFET outputs 4D 4D 4D | 16 digital inputs with Auto-Burnishing 4L 4L 4L | 14 Form-A (no monitoring) Latching outputs 67 67 67 | 8 Form-A (no monitoring) outputs 6A 6A 6A | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 digital inputs 6B 6B 6B | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 digital inputs 6C 6C 6C | 8 Form-C outputs 6D 6D 6D | 16 digital inputs 6E 6E 6E | 4 Form-C outputs, 8 digital inputs 6F 6F 6F | 8 Fast Form-C outputs 6G 6G 6G | 4 Form-A (voltage with optional current) outputs, 8 digital inputs 6H 6H 6H | 6 Form-A (voltage with optional current) outputs, 4 digital inputs 6K 6K 6K | 4 Form-C and 4 Fast Form-C outputs 6L 6L 6L | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 digital inputs 6M 6M 6M | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 digital inputs 6N 6N 6N | 4 Form-A (current with optional voltage) outputs, 8 digital inputs 6P 6P 6P | 6 Form-A (current with optional voltage) outputs, 4 digital inputs 6R 6R 6R | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 digital inputs 6S 6S 6S | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 digital inputs 6T 6T 6T | 4 Form-A (no monitoring) outputs, 8 digital inputs 6U 6U 6U | 6 Form-A (no monitoring) outputs, 4 digital inputs 6V 6V 6V | 2 Form-A outputs, 1 Form-C output, 1 Form-A latching output, 8 digital inputs TRANSDUCER INPUTS/OUTPUTS (select a maximum of 3 per unit) 5A 5A 5A | 4 DCmA inputs, 4 DCmA outputs (only one 5A module is allowed) 5C 5C 5C | 8 RTD inputs 5D 5D 5D | 4 RTD inputs, 4 DCmA outputs (only one 5D module is allowed) 5E 5E 5E | 4 RTD inputs, 4 DCmA inputs 5F 5F 5F | 8 DCmA inputs INTER-RELAY COMMUNICATIONS (select a maximum of 1 per unit) 2A C37.94SM, 1300nm single-mode, ELED, 1 channel single-mode 2B C37.94SM, 1300nm single-mode, ELED, 2 channel single-mode 2E Bi-phase, single channel 2F Bi-phase, dual channel 2G IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel 2H IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels 72 1550 nm, single-mode, LASER, 1 Channel 73 1550 nm, single-mode, LASER, 2 Channel 74 Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, LASER 75 Channel 1 - G.703; Channel 2 - 1550 nm, Single-mode LASER 76 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 1 Channel 77 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels 7A 820 nm, multi-mode, LED, 1 Channel 7B 1300 nm, multi-mode, LED, 1 Channel 7C 1300 nm, single-mode, ELED, 1 Channel 7D 1300 nm, single-mode, LASER, 1 Channel 7E Channel 1 - G.703; Channel 2 - 820 nm, multi-mode 7F Channel 1 - G.703; Channel 2 - 1300 nm, multi-mode 7G Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED 7H 820 nm, multi-mode, LED, 2 Channels 7I 1300 nm, multi-mode, LED, 2 Channels 7J 1300 nm, single-mode, ELED, 2 Channels 7K 1300 nm, single-mode, LASER, 2 Channels 7L Channel 1 - RS422; Channel 2 - 820 nm, multi-mode, LED 7M Channel 1 - RS422; Channel 2 - 1300 nm, multi-mode, LED 7N Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED 7P Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER 7R G.703, 1 Channel 7S G.703, 2 Channels 7T RS422, 1 Channel 7V RS422, 2 Channels, 2 Clock Inputs 7W RS422, 2 Channels

2-7 2 PRODUCT DESCRIPTION 2.1 INTRODUCTION 2 c) ORDER CODES WITH PROCESS BUS MODULES The order codes for the horizontal mount units with the process bus module are shown below. Table 2–5: L30 ORDER CODES (HORIZONTAL UNITS WITH PROCESS BUS) L30 - * ** - * * * - F ** - H ** - L ** - N ** - S ** - U ** - W/X ** Full Size Horizontal Mount BASE UNIT L30 | | | | | | | | | | | | Base Unit CPU E | | | | | | | | | | | RS485 and RS485 J | | | | | | | | | | | RS485, multi-mode ST 100Base-FX and 10/100Base-T K | | | | | | | | | | | RS485, multi-mode ST redundant 100Base-FX and 10/100Base-T N | | | | | | | | | | | RS485 and 10/100Base-T S | | | | | | | | | | | RS485 and 6-port managed Ethernet Switch SOFTWARE (IEC 61850 options not available with type E CPUs) 00 | | | | | | | | | | No software options 03 | | | | | | | | | | IEC 61850 06 | | | | | | | | | | One phasor measurement unit (PMU) 07 | | | | | | | | | | IEC 61850 and one phasor measurement unit (PMU) 18 | | | | | | | | | | Synchrocheck and three-pole autoreclose 19 | | | | | | | | | | Synchrocheck, three-pole autoreclose, and one phasor measurement unit (PMU) 24 | | | | | | | | | | In-zone transformer protection 25 | | | | | | | | | | In-zone transformer protection and IEC 61850 26 | | | | | | | | | | In-zone transformer protection and one phasor measurement unit (PMU) 27 | | | | | | | | | | In-zone transformer protection, IEC 61850, and one phasor measurement unit (PMU) MOUNT/COATING H | | | | | | | | | Horizontal (19” rack) A | | | | | | | | | Horizontal (19” rack) with harsh environmental coating FACEPLATE/ DISPLAY C | | | | | | | | English display D | | | | | | | | French display R | | | | | | | | Russian display A | | | | | | | | Chinese display P | | | | | | | | English display with 4 small and 12 large programmable pushbuttons G | | | | | | | | French display with 4 small and 12 large programmable pushbuttons S | | | | | | | | Russian display with 4 small and 12 large programmable pushbuttons B | | | | | | | | Chinese display with 4 small and 12 large programmable pushbuttons K | | | | | | | | Enhanced front panel with English display M | | | | | | | | Enhanced front panel with French display Q | | | | | | | | Enhanced front panel with Russian display U | | | | | | | | Enhanced front panel with Chinese display L | | | | | | | | Enhanced front panel with English display and user-programmable pushbuttons N | | | | | | | | Enhanced front panel with French display and user-programmable pushbuttons T | | | | | | | | Enhanced front panel with Russian display and user-programmable pushbuttons V | | | | | | | | Enhanced front panel with Chinese display and user-programmable pushbuttons W | | | | | | | | Enhanced front panel with Turkish display Y | | | | | | | | Enhanced front panel with Turkish display and user-programmable pushbuttons POWER SUPPLY (redundant supply must be same type as main supply) H | | | | | | | 125 / 250 V AC/DC power supply H | | | | | | RH 125 / 250 V AC/DC with redundant 125 / 250 V AC/DC power supply L | | | | | | | 24 to 48 V (DC only) power supply L | | | | | | RL 24 to 48 V (DC only) with redundant 24 to 48 V DC power supply PROCESS BUS MODULE | 81 | | | | | Eight-port digital process bus module DIGITAL INPUTS/OUTPUTS XX XX XX XX XX XX No Module 4A 4A | | 4 Solid-State (no monitoring) MOSFET outputs 4B 4B | | 4 Solid-State (voltage with optional current) MOSFET outputs 4C 4C | | 4 Solid-State (current with optional voltage) MOSFET outputs 4D 4D | | 16 digital inputs with Auto-Burnishing 4L 4L | | 14 Form-A (no monitoring) Latching outputs 67 67 | | 8 Form-A (no monitoring) outputs 6A 6A | | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 digital inputs 6B 6B | | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 digital inputs 6C 6C | | 8 Form-C outputs 6D 6D | | 16 digital inputs 6E 6E | | 4 Form-C outputs, 8 digital inputs 6F 6F | | 8 Fast Form-C outputs 6G 6G | | 4 Form-A (voltage with optional current) outputs, 8 digital inputs 6H 6H | | 6 Form-A (voltage with optional current) outputs, 4 digital inputs 6K 6K | | 4 Form-C and 4 Fast Form-C outputs 6L 6L | | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 digital inputs 6M 6M | | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 digital inputs 6N 6N | | 4 Form-A (current with optional voltage) outputs, 8 digital inputs 6P 6P | | 6 Form-A (current with optional voltage) outputs, 4 digital inputs 6R 6R | | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 digital inputs 6S 6S | | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 digital inputs 6T 6T | | 4 Form-A (no monitoring) outputs, 8 digital inputs 6U 6U | | 6 Form-A (no monitoring) outputs, 4 digital inputs 6V 6V | | 2 Form-A outputs, 1 Form-C output, 1 Form-A latching output, 8 digital inputs INTER-RELAY COMMUNICATIONS (select a maximum of 1 per unit) 2A C37.94SM, 1300nm single-mode, ELED, 1 channel single-mode 2B C37.94SM, 1300nm single-mode, ELED, 2 channel single-mode 2E Bi-phase, single channel 2F Bi-phase, dual channel 2G IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel 2H IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels 72 1550 nm, single-mode, LASER, 1 Channel 73 1550 nm, single-mode, LASER, 2 Channel 74 Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, LASER 75 Channel 1 - G.703; Channel 2 - 1550 nm, Single-mode LASER 76 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 1 Channel 77 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels 7A 820 nm, multi-mode, LED, 1 Channel 7B 1300 nm, multi-mode, LED, 1 Channel 7C 1300 nm, single-mode, ELED, 1 Channel 7D 1300 nm, single-mode, LASER, 1 Channel 7E Channel 1 - G.703; Channel 2 - 820 nm, multi-mode 7F Channel 1 - G.703; Channel 2 - 1300 nm, multi-mode 7G Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED 7H 820 nm, multi-mode, LED, 2 Channels 7I 1300 nm, multi-mode, LED, 2 Channels 7J 1300 nm, single-mode, ELED, 2 Channels 7K 1300 nm, single-mode, LASER, 2 Channels 7L Channel 1 - RS422; Channel 2 - 820 nm, multi-mode, LED 7M Channel 1 - RS422; Channel 2 - 1300 nm, multi-mode, LED 7N Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED 7P Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER 7R G.703, 1 Channel 7S G.703, 2 Channels 7T RS422, 1 Channel 7V RS422, 2 Channels, 2 Clock Inputs 7W RS422, 2 Channels

GE Multilin 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION 2 The order codes for the reduced size vertical mount units with the process bus module are shown below. Table 2–6: L30 ORDER CODES (REDUCED SIZE VERTICAL UNITS WITH PROCESS BUS) L30 - * ** - * * * - F ** - H ** - L ** - N ** - R ** Reduced Size Vertical Mount BASE UNIT L30 | | | | | | | | | | Base Unit CPU E | | | | | | | | | RS485 and RS485 J | | | | | | | | | RS485, multi-mode ST 100Base-FX and 10/100Base-T K | | | | | | | | | RS485, multi-mode ST redundant 100Base-FX and 10/100Base-T N | | | | | | | | | RS485 and 10/100Base-T SOFTWARE (IEC 61850 options not available with type E CPUs) 00 | | | | | | | | No software options 03 | | | | | | | | IEC 61850 06 | | | | | | | | Phasor measurement unit (PMU) 07 | | | | | | | | IEC 61850 and phasor measurement unit (PMU) 18 | | | | | | | | Synchrocheck and three-pole autoreclose 19 | | | | | | | | Synchrocheck, three-pole autoreclose, IEC 61850, and one phasor measurement unit (PMU) 24 | | | | | | | | In-zone transformer protection 25 | | | | | | | | In-zone transformer protection and IEC 61850 26 | | | | | | | | In-zone transformer protection and and one phasor measurement unit (PMU) 27 | | | | | | | | In-zone transformer protection, IEC 61850, and one phasor measurement unit (PMU) MOUNT/COATING V | | | | | | | Vertical (3/4 rack) B | | | | | | | Vertical (3/4 rack) with harsh environmental coating FACEPLATE/ DISPLAY F | | | | | | English display D | | | | | | French display R | | | | | | Russian display A | | | | | | Chinese display K | | | | | | Enhanced front panel with English display M | | | | | | Enhanced front panel with French display Q | | | | | | Enhanced front panel with Russian display U | | | | | | Enhanced front panel with Chinese display L | | | | | | Enhanced front panel with English display and user-programmable pushbuttons N | | | | | | Enhanced front panel with French display and user-programmable pushbuttons T | | | | | | Enhanced front panel with Russian display and user-programmable pushbuttons V | | | | | | Enhanced front panel with Chinese display and user-programmable pushbuttons W | | | | | | Enhanced front panel with Turkish display Y | | | | | | Enhanced front panel with Turkish display and user-programmable pushbuttons POWER SUPPLY H | | | | | 125 / 250 V AC/DC power supply L | | | | | 24 to 48 V (DC only) power supply PROCESS BUS MODULE | 81 | | | Eight-port digital process bus module DIGITAL INPUTS/OUTPUTS XX XX XX XX No Module 4A | 4 Solid-State (no monitoring) MOSFET outputs 4B | 4 Solid-State (voltage with optional current) MOSFET outputs 4C | 4 Solid-State (current with optional voltage) MOSFET outputs 4D | 16 digital inputs with Auto-Burnishing 4L | 14 Form-A (no monitoring) Latching outputs 67 | 8 Form-A (no monitoring) outputs 6A | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 digital inputs 6B | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 digital inputs 6C | 8 Form-C outputs 6D | 16 digital inputs 6E | 4 Form-C outputs, 8 digital inputs 6F | 8 Fast Form-C outputs 6G | 4 Form-A (voltage with optional current) outputs, 8 digital inputs 6H | 6 Form-A (voltage with optional current) outputs, 4 digital inputs 6K | 4 Form-C and 4 Fast Form-C outputs 6L | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 digital inputs 6M | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 digital inputs 6N | 4 Form-A (current with optional voltage) outputs, 8 digital inputs 6P | 6 Form-A (current with optional voltage) outputs, 4 digital inputs 6R | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 digital inputs 6S | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 digital inputs 6T | 4 Form-A (no monitoring) outputs, 8 digital inputs 6U | 6 Form-A (no monitoring) outputs, 4 digital inputs 6V | 2 Form-A outputs, 1 Form-C output, 1 Form-A latching output, 8 digital inputs INTER-RELAY COMMUNICATIONS (select a maximum of 1 per unit) 2A C37.94SM, 1300nm single-mode, ELED, 1 channel single-mode 2B C37.94SM, 1300nm single-mode, ELED, 2 channel single-mode 2E Bi-phase, single channel 2F Bi-phase, dual channel 2G IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel 2H IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels 72 1550 nm, single-mode, LASER, 1 Channel 73 1550 nm, single-mode, LASER, 2 Channel 74 Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, LASER 75 Channel 1 - G.703; Channel 2 - 1550 nm, Single-mode LASER 76 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 1 Channel 77 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels 7A 820 nm, multi-mode, LED, 1 Channel 7B 1300 nm, multi-mode, LED, 1 Channel 7C 1300 nm, single-mode, ELED, 1 Channel 7D 1300 nm, single-mode, LASER, 1 Channel 7E Channel 1 - G.703; Channel 2 - 820 nm, multi-mode 7F Channel 1 - G.703; Channel 2 - 1300 nm, multi-mode 7G Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED 7H 820 nm, multi-mode, LED, 2 Channels 7I 1300 nm, multi-mode, LED, 2 Channels 7J 1300 nm, single-mode, ELED, 2 Channels 7K 1300 nm, single-mode, LASER, 2 Channels 7L Channel 1 - RS422; Channel 2 - 820 nm, multi-mode, LED 7M Channel 1 - RS422; Channel 2 - 1300 nm, multi-mode, LED 7N Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED 7P Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER 7R G.703, 1 Channel 7S G.703, 2 Channels 7T RS422, 1 Channel 7V RS422, 2 Channels, 2 Clock Inputs 7W RS422, 2 Channels

2-9 2 PRODUCT DESCRIPTION 2.1 INTRODUCTION 2 2.1.4 REPLACEMENT MODULES Replacement modules can be ordered separately as shown below. When ordering a replacement CPU module or face- plate, please provide the serial number of your existing unit. Not all replacement modules may be applicable to the L30 relay. Only the modules specified in the order codes are available as replacement modules. Replacement module codes are subject to change without notice. CPU modules 9G, 9H, 9L, and 9M are obsolete. See http://www.gedigitalenergy.com/multilin/order.htm for the latest ordering options. The replacement module order codes for the horizontal mount units are shown below. Table 2–7: ORDER CODES FOR REPLACEMENT MODULES, HORIZONTAL UNITS UR - ** - * POWER SUPPLY (redundant supply only available in horizontal units; and must be same type as main supply) (for redundant supply, must swap both power supplies when switching from RH to SH) | 1H | 125 / 250 V AC/DC | 1L | 24 to 48 V (DC only) | SH A 125 / 300 V AC/DC | RL H 24 to 48 V (DC only) CPU | 9E | RS485 and RS485 (Modbus RTU, DNP 3.0) | 9J | RS485, multi-mode ST 100Base-FX and 10/100Base-T (Ethernet, Modbus TCP/IP, DNP 3.0) | 9K | RS485, multi-mode ST redundant 100Base-FX and 10/100Base-T (Ethernet, Modbus TCP/IP, DNP 3.0) | 9N | RS485 and 10/100Base-T | 9S | RS485 and six-port managed Ethernet switch FACEPLATE/DISPLAY | 3C | Horizontal faceplate with keypad and English display | 3D | Horizontal faceplate with keypad and French display | 3R | Horizontal faceplate with keypad and Russian display | 3A | Horizontal faceplate with keypad and Chinese display | 3P | Horizontal faceplate with keypad, user-programmable pushbuttons, and English display | 3G | Horizontal faceplate with keypad, user-programmable pushbuttons, and French display | 3S | Horizontal faceplate with keypad, user-programmable pushbuttons, and Russian display | 3B | Horizontal faceplate with keypad, user-programmable pushbuttons, and Chinese display | 3K | Enhanced front panel with English display | 3M | Enhanced front panel with French display | 3Q | Enhanced front panel with Russian display | 3U | Enhanced front panel with Chinese display | 3L | Enhanced front panel with English display and user-programmable pushbuttons | 3N | Enhanced front panel with French display and user-programmable pushbuttons | 3T | Enhanced front panel with Russian display and user-programmable pushbuttons | 3V | Enhanced front panel with Chinese display and user-programmable pushbuttons DIGITAL INPUTS AND OUTPUTS | 4A | 4 Solid-State (no monitoring) MOSFET outputs | 4B | 4 Solid-State (voltage with optional current) MOSFET outputs | 4C | 4 Solid-State (current with optional voltage) MOSFET outputs | 4D | 16 digital inputs with Auto-Burnishing | 4L | 14 Form-A (no monitoring) Latching outputs | 67 | 8 Form-A (no monitoring) outputs | 6A | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 digital inputs | 6B | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 digital inputs | 6C | 8 Form-C outputs | 6D | 16 digital inputs | 6E | 4 Form-C outputs, 8 digital inputs | 6F | 8 Fast Form-C outputs | 6G | 4 Form-A (voltage with optional current) outputs, 8 digital inputs | 6H | 6 Form-A (voltage with optional current) outputs, 4 digital inputs | 6K | 4 Form-C and 4 Fast Form-C outputs | 6L | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 digital inputs | 6M | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 digital inputs | 6N | 4 Form-A (current with optional voltage) outputs, 8 digital inputs | 6P | 6 Form-A (current with optional voltage) outputs, 4 digital inputs | 6R | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 digital inputs | 6S | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 digital inputs | 6T | 4 Form-A (no monitoring) outputs, 8 digital inputs | 6U | 6 Form-A (no monitoring) outputs, 4 digital inputs | 6V | 2 Form-A outputs, 1 Form-C output, 2 Form-A (no monitoring) latching outputs, 8 digital inputs CT/VT MODULES (NOT AVAILABLE FOR THE C30) | 8F | Standard 4CT/4VT | 8G | Sensitive Ground 4CT/4VT | 8H | Standard 8CT | 8J | Sensitive Ground 8CT | 8L | Standard 4CT/4VT with enhanced diagnostics | 8M | Sensitive Ground 4CT/4VT with enhanced diagnostics | 8N | Standard 8CT with enhanced diagnostics | 8R | Sensitive Ground 8CT with enhanced diagnostics INTER-RELAY COMMUNICATIONS | 2A | C37.94SM, 1300nm single-mode, ELED, 1 channel single-mode | 2B | C37.94SM, 1300nm single-mode, ELED, 2 channel single-mode | 2E | Bi-phase, single channel | 2F | Bi-phase, dual channel | 2G | IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel | 2H | IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels | 2S | Six-port managed Ethernet switch with high voltage power supply (110 to 250 V DC / 100 to 240 V AC) | 2T | Six-port managed Ethernet switch with low voltage power supply (48 V DC) | 72 | 1550 nm, single-mode, LASER, 1 Channel | 73 | 1550 nm, single-mode, LASER, 2 Channel | 74 | Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, LASER | 75 | Channel 1 - G.703; Channel 2 - 1550 nm, Single-mode LASER | 76 | IEEE C37.94, 820 nm, multimode, LED, 1 Channel | 77 | IEEE C37.94, 820 nm, multimode, LED, 2 Channels | 7A | 820 nm, multi-mode, LED, 1 Channel | 7B | 1300 nm, multi-mode, LED, 1 Channel | 7C | 1300 nm, single-mode, ELED, 1 Channel | 7D | 1300 nm, single-mode, LASER, 1 Channel | 7E | Channel 1 - G.703; Channel 2 - 820 nm, multi-mode | 7F | Channel 1 - G.703; Channel 2 - 1300 nm, multi-mode | 7G | Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED | 7H | 820 nm, multi-mode, LED, 2 Channels | 7I | 1300 nm, multi-mode, LED, 2 Channels | 7J | 1300 nm, single-mode, ELED, 2 Channels | 7K | 1300 nm, single-mode, LASER, 2 Channels | 7L | Channel 1 - RS422; Channel 2 - 820 nm, multi-mode, LED | 7M | Channel 1 - RS422; Channel 2 - 1300 nm, multi-mode, LED | 7N | Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED | 7P | Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER | 7Q | Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER | 7R | G.703, 1 Channel | 7S | G.703, 2 Channels | 7T | RS422, 1 Channel | 7W | RS422, 2 Channels NOTE NOTE

GE Multilin 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION 2 The replacement module order codes for the reduced-size vertical mount units are shown below. Table 2–8: ORDER CODES FOR REPLACEMENT MODULES, VERTICAL UNITS UR - ** - * POWER SUPPLY | SH B 125 / 300 V AC/DC | 1L | 24 to 48 V (DC only) CPU | 9E | RS485 and RS485 (Modbus RTU, DNP 3.0) | 9J | RS485, multi-mode ST 100Base-FX and 10/100Base-T (Ethernet, Modbus TCP/IP, DNP 3.0) | 9K | RS485, multi-mode ST redundant 100Base-FX and 10/100Base-T (Ethernet, Modbus TCP/IP, DNP 3.0) | 9N | RS485 and 10/100Base-T FACEPLATE/DISPLAY | 3F | Vertical faceplate with keypad and English display | 3D | Vertical faceplate with keypad and French display | 3R | Vertical faceplate with keypad and Russian display | 3K | Vertical faceplate with keypad and Chinese display | 3K | Enhanced front panel with English display | 3M | Enhanced front panel with French display | 3Q | Enhanced front panel with Russian display | 3U | Enhanced front panel with Chinese display | 3L | Enhanced front panel with English display and user-programmable pushbuttons | 3N | Enhanced front panel with French display and user-programmable pushbuttons | 3T | Enhanced front panel with Russian display and user-programmable pushbuttons | 3V | Enhanced front panel with Chinese display and user-programmable pushbuttons DIGITAL INPUTS/OUTPUTS | 4A | 4 Solid-State (no monitoring) MOSFET outputs | 4B | 4 Solid-State (voltage with optional current) MOSFET outputs | 4C | 4 Solid-State (current with optional voltage) MOSFET outputs | 4D | 16 digital inputs with Auto-Burnishing | 4L | 14 Form-A (no monitoring) Latching outputs | 67 | 8 Form-A (no monitoring) outputs | 6A | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 digital inputs | 6B | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 digital inputs | 6C | 8 Form-C outputs | 6D | 16 digital inputs | 6E | 4 Form-C outputs, 8 digital inputs | 6F | 8 Fast Form-C outputs | 6G | 4 Form-A (voltage with optional current) outputs, 8 digital inputs | 6H | 6 Form-A (voltage with optional current) outputs, 4 digital inputs | 6K | 4 Form-C and 4 Fast Form-C outputs | 6L | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 digital inputs | 6M | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 digital inputs | 6N | 4 Form-A (current with optional voltage) outputs, 8 digital inputs | 6P | 6 Form-A (current with optional voltage) outputs, 4 digital inputs | 6R | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 digital inputs | 6S | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 digital inputs | 6T | 4 Form-A (no monitoring) outputs, 8 digital inputs | 6U | 6 Form-A (no monitoring) outputs, 4 digital inputs | 6V | 2 Form-A outputs, 1 Form-C output, 2 Form-A (no monitoring) latching outputs, 8 digital inputs CT/VT MODULES (NOT AVAILABLE FOR THE C30) | 8F | Standard 4CT/4VT | 8G | Sensitive Ground 4CT/4VT | 8H | Standard 8CT | 8J | Sensitive Ground 8CT | 8L | Standard 4CT/4VT with enhanced diagnostics | 8M | Sensitive Ground 4CT/4VT with enhanced diagnostics | 8N | Standard 8CT with enhanced diagnostics | 8R | Sensitive Ground 8CT with enhanced diagnostics INTER-RELAY COMMUNICATIONS | 2A | C37.94SM, 1300nm single-mode, ELED, 1 channel single-mode | 2B | C37.94SM, 1300nm single-mode, ELED, 2 channel single-mode | 2E | Bi-phase, single channel | 2F | Bi-phase, dual channel | 2G | IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel | 2H | IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels | 72 | 1550 nm, single-mode, LASER, 1 Channel | 73 | 1550 nm, single-mode, LASER, 2 Channel | 74 | Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, LASER | 75 | Channel 1 - G.703; Channel 2 - 1550 nm, Single-mode LASER | 76 | IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 1 Channel | 77 | IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels | 7A | 820 nm, multi-mode, LED, 1 Channel | 7B | 1300 nm, multi-mode, LED, 1 Channel | 7C | 1300 nm, single-mode, ELED, 1 Channel | 7D | 1300 nm, single-mode, LASER, 1 Channel | 7E | Channel 1 - G.703; Channel 2 - 820 nm, multi-mode | 7F | Channel 1 - G.703; Channel 2 - 1300 nm, multi-mode | 7G | Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED | 7H | 820 nm, multi-mode, LED, 2 Channels | 7I | 1300 nm, multi-mode, LED, 2 Channels | 7J | 1300 nm, single-mode, ELED, 2 Channels | 7K | 1300 nm, single-mode, LASER, 2 Channels | 7L | Channel 1 - RS422; Channel 2 - 820 nm, multi-mode, LED | 7M | Channel 1 - RS422; Channel 2 - 1300 nm, multi-mode, LED | 7N | Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED | 7P | Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER | 7Q | Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER | 7R | G.703, 1 Channel | 7S | G.703, 2 Channels | 7T | RS422, 1 Channel | 7W | RS422, 2 Channels

2-11 2 PRODUCT DESCRIPTION 2.2 PILOT CHANNEL RELAYING 2 2.2PILOT CHANNEL RELAYING 2.2.1 INTER-RELAY COMMUNICATIONS Dedicated inter-relay communications may operate over 64 kbps digital channels or dedicated fiber optic channels. Avail- able interfaces include: • RS422 at 64 kbps • G.703 at 64 kbps • Dedicated fiber optics at 64 kbps. The fiber optic options include: – 820 nm multi-mode fiber with an LED transmitter. – 1300 nm multi-mode fiber with an LED transmitter. – 1300 nm single-mode fiber with an ELED transmitter. – 1300 nm single-mode fiber with a laser transmitter. – 1550 nm single-mode fiber with a laser transmitter. – IEEE C37.94 820 nm multi-mode fiber with an LED transmitter. All fiber optic options use an ST connector. L30 models are available for use on two or three terminal lines. A two terminal line application requires one bidirectional channel. However, in two terminal line applications, it is also possible to use an L30 relay with two bidirectional channels. The second bidirectional channel will provide a redundant backup channel with automatic switchover if the first channel fails. The L30 current differential relay is designed to function in a peer-to-peer or master-to-master architecture. In the peer-to- peer architecture, all relays in the system are identical and perform identical functions in the current differential scheme. In order for every relay on the line to be a peer, each relay must be able to communicate with all of the other relays. If there is a failure in communications among the relays, the relays will revert to a master-to-peer architecture on a three-terminal sys- tem, with the master as the relay that has current phasors from all terminals. Using two different operational modes increases the dependability of the current differential scheme on a three-terminal system by reducing reliance on communi- cations. The main difference between a master and a slave L30 is that only a master relay performs the actual current differential calculation, and only a master relay communicates with the relays at all other terminals of the protected line. At least one master L30 relay must have live communications to all other terminals in the current differential scheme; the other L30 relays on that line may operate as slave relays. All master relays in the scheme will be equal, and each will per- form all functions. Each L30 relay in the scheme will determine if it is a master by comparing the number of terminals on the line to the number of active communication channels. The slave terminals only communicate with the master; there is no slave-to-slave communications path. As a result, a slave L30 relay cannot calculate the differential current. When a master L30 relay issues a local trip signal, it also sends a direct transfer trip (DTT) signal to all of the other L30 relays on the protected line. If a slave L30 relay issues a trip from one of its backup functions, it can send a transfer trip signal to its master and other slave relays if such option is designated. Because a slave cannot communicate with all the relays in the differential scheme, the master will then “broadcast” the direct transfer trip (DTT) signal to all other terminals. The slave L30 Relay performs the following functions: • Samples currents and voltages. • Removes DC offset from the current via the mimic algorithm. • Creates phaselets. • Calculates sum of squares data. • Transmits current data to all master L30 relays. • Performs all local relaying functions. • Receives current differential DTT and Direct Input signals from all other L30 relays. • Transmits direct output signals to all communicating relays. • Sends synchronization information of local clock to all other L30 clocks.

GE Multilin 2.2 PILOT CHANNEL RELAYING 2 PRODUCT DESCRIPTION 2 The master L30 relay performs the following functions: • Performs all functions of a slave L30. • Receives current phasor information from all relays. • Performs the current differential algorithm. • Sends a current differential DTT signal to all L30 relays on the protected line. In the peer-to-peer mode, all L30 relays act as masters. Figure 2–2: COMMUNICATIONS PATHS 2.2.2 CHANNEL MONITOR The L30 has logic to detect that the communications channel is deteriorating or has failed completely. This can provide an alarm indication and disable the current differential protection. Note that a failure of the communications from the master to a slave does not prevent the master from performing the current differential algorithm; failure of the communications from a slave to the master will prevent the master from performing the correct current differential logic. Channel propagation delay is being continuously measured and adjusted according to changes in the communications path. Every relay on the protec- tion system can assigned an unique ID to prevent advertent loopbacks at multiplexed channels. IED-1 IED-1 IED-2 IED-2 IED-3 CHn CHn CHn CHn CHn CHn CHn CHn CHn CHn Rx Rx Optional redundant channel Typical two-terminal application Typical three-terminal application Rx Rx Rx Rx Rx Rx Rx Rx Tx Tx Tx Tx Tx Tx Tx Tx Tx Tx 831009A5.CDR

2-13 2 PRODUCT DESCRIPTION 2.2 PILOT CHANNEL RELAYING 2 2.2.3 LOOPBACK TEST This option allows the user to test the relay at one terminal of the line by looping the transmitter output to the receiver input; at the same time, the signal sent to the remote will not change. A local loopback feature is included in the relay to simplify single ended testing. 2.2.4 DIRECT TRANSFER TRIPPING The L30 includes provision for sending and receiving a single-pole direct transfer trip (DTT) signal from current differential protection between the L30 relays at the line terminals using the pilot communications channel. The user may also initiate an additional eight pilot signals with an L30 communications channel to create trip, block, or signaling logic. A FlexLogic™ operand, an external contact closure, or a signal over the LAN communication channels can be assigned for that logic.

GE Multilin 2.3 FUNCTIONALITY 2 PRODUCT DESCRIPTION 2 2.3FUNCTIONALITY 2.3.1 PROTECTION AND CONTROL FUNCTIONS • Current differential protection: The current differential algorithms used in the L30 Line Current Differential System are based on the Fourier transform phaselet approach and an adaptive statistical restraint. The L30 uses per-phase differential at 64 kbps with two phaselets per cycle. A detailed description of the current differential algorithms is found in chapter 8. The current differential protection can be set in a percentage differential scheme with a single or dual slope. • Backup protection: In addition to the primary current differential protection, the L30 Line Current Differential System incorporates backup functions that operate on the local relay current only, such as directional phase overcurrent, direc- tional neutral overcurrent, negative-sequence overcurrent, undervoltage, overvoltage, and distance protection. • Multiple setting groups: The relay can store six groups of settings. They may be selected by user command, a con- figurable contact input or a FlexLogic™ equation to allow the relay to respond to changing conditions. • User-programmable logic: In addition to the built-in protection logic, the relay may be programmed by the user via FlexLogic™ equations. • Configurable inputs and outputs: All of the contact converter inputs (digital inputs) to the relay may be assigned by the user to directly block a protection element, operate an output relay or serve as an input to FlexLogic™ equations. All of the outputs, except for the self test critical alarm contacts, may also be assigned by the user. 2.3.2 METERING AND MONITORING FUNCTIONS • Metering: The relay measures all input currents and calculates both phasors and symmetrical components. When AC potential is applied to the relay via the optional voltage inputs, metering data includes phase and neutral current, phase voltage, three phase and per phase W, VA, and var, and power factor. Frequency is measured on either current or volt- age inputs. They may be called onto the local display or accessed via a computer. All terminal current phasors and dif- ferential currents are also displayed at all relays, allowing the user opportunity to analyze correct polarization of currents at all terminals. • Event records: The relay has a sequence of events recorder which combines the recording of snapshot data and oscillography data. Events consist of a broad range of change of state occurrences, including input contact changes, measuring-element pickup and operation, FlexLogic™ equation changes, and self-test status. The relay stores up to 1024 events with the date and time stamped to the nearest microsecond. This provides the information needed to determine a sequence of events, which can reduce troubleshooting time and simplify report generation after system events. • Oscillography: The relay stores oscillography data at a sampling rate of 64 times per cycle. The relay can store a maximum of 64 records. Each oscillography file includes a sampled data report consisting of: – Instantaneous sample of the selected currents and voltages (if AC potential is used), – The status of each selected contact input. – The status of each selected contact output. – The status of each selected measuring function. – The status of various selected logic signals, including virtual inputs and outputs. The captured oscillography data files can be accessed via the remote communications ports on the relay. • CT failure and current unbalance alarm: The relay has current unbalance alarm logic. The unbalance alarm may be supervised by a zero-sequence voltage detector. The user may block the relay from tripping when the current unbal- ance alarm operates. • Trip circuit monitor: On those outputs designed for trip duty, a trip voltage monitor will continuously measure the DC voltage across output contacts to determine if the associated trip circuit is intact. If the voltage dips below the minimum voltage or the breaker fails to open or close after a trip command, an alarm can be activated. • Self-test: The most comprehensive self testing of the relay is performed during a power-up. Because the system is not performing any protection activities at power-up, tests that would be disruptive to protection processing may be per- formed. The processors in the CPU and all CT/VT modules participate in startup self-testing. Self-testing checks approximately 85 to 90% of the hardware, and CRC/check-sum verification of all PROMs is performed. The proces-

2-15 2 PRODUCT DESCRIPTION 2.3 FUNCTIONALITY 2 sors communicate their results to each other so that if any failures are detected, they can be reported to the user. Each processor must successfully complete its self tests before the relay begins protection activities. During both startup and normal operation, the CPU polls all plug-in modules and checks that every one answers the poll. The CPU compares the module types that identify themselves to the relay order code stored in memory and declares an alarm if a module is either non-responding or the wrong type for the specific slot. When running under nor- mal power system conditions, the relay processors will have idle time. During this time, each processor performs back- ground self-tests that are not disruptive to the foreground processing. 2.3.3 OTHER FUNCTIONS a) ALARMS The relay contains a dedicated alarm relay, the critical failure alarm, housed in the power supply module. This output relay is not user programmable. This relay has form-C contacts and is energized under normal operating conditions. The critical failure alarm will become de-energized if the relay self test algorithms detect a failure that would prevent the relay from properly protecting the transmission line. b) LOCAL USER INTERFACE The local user interface (on the faceplate) consists of a 2 × 20 liquid crystal display (LCD) and keypad. The keypad and dis- play may be used to view data from the relay, to change settings in the relay, or to perform control actions. Also, the face- plate provides LED indications of status and events. c) TIME SYNCHRONIZATION The relay includes a clock which can run freely from the internal oscillator or be synchronized from an external IRIG-B sig- nal. With the external signal, all relays wired to the same synchronizing signal will be synchronized to within 0.1 millisecond.

GE Multilin 2.3 FUNCTIONALITY 2 PRODUCT DESCRIPTION 2 d) FUNCTION DIAGRAMS Figure 2–3: L30 BLOCK DIAGRAM 831732A3.CDR I V Sample Raw Value Sample Raw Value Sample Hold Master Clock Remote Relay Communications Interface Phase and Frequency Locked Loop (PFLL) Phase Deviation Frequency Deviation Charging Current Comp. Offset Removal Offset Removal Filter PFLL Status Compute Phaselets Compute Phaselets Compute Phaselets UR Platform Phasors Computations Disturbance Detector 67P&N 50P,N&G 51P,N&G 27P 59P 87L Algorithm 21P&G Trip Output Configurable Logic Direct Transfer Trip PHASELETS TO REMOTE PHASELETS FROM REMOTE dV dt

2-17 2 PRODUCT DESCRIPTION 2.3 FUNCTIONALITY 2 Figure 2–4: MAIN SOFTWARE MODULES 831749A1.CDR Peer Clock Time Stamp Sampling Control Raw Sample Time Stamps Phase Deviation Frequency Deviation Compute Frequency Deviation Sample Currents and Voltages Compute Phaselets Disturbance Detector Trip Output Logic Fault Detector Phaselets Phaselets Phasors Phaselets Compute Positive Sequence Currents Align Phaselets Compute Phasors and Variance Parameters Remove Decaying Offset and Charging Current Clock Control Ping-pong Algorithm Estimate Phase Angle Uncertainties Peer Communication Channel Control Phase Deviation Estimate Phase Angle Correction from GPS signal

GE Multilin 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 2.4SPECIFICATIONS 2.4.1 PROTECTION ELEMENTS The operating times below include the activation time of a trip rated form-A output contact unless otherwise indi- cated. FlexLogic™ operands of a given element are 4 ms faster. This should be taken into account when using FlexLogic™ to interconnect with other protection or control elements of the relay, building FlexLogic™ equations, or interfacing with other IEDs or power system devices via communications or different output contacts. LINE CURRENT DIFFERENTIAL (87L) Application: 2 or 3 terminal line, series compensated line, tapped line, with charging current compensation Characteristic: Dual slope percent differential Pickup current level: 0.20 to 4.00 pu in steps of 0.01 CT Tap (CT mismatch factor): 0.20 to 5.00 in steps of 0.01 Slope # 1: 1 to 50% Slope # 2: 1 to 70% Breakpoint between slopes: 0.0 to 20.0 pu in steps of 0.1 Level accuracy: ±3% of reading of the maximum circuit current DTT: Direct Transfer Trip (1 and 3 pole) to remote L90 Operating Time: 1.0 to 1.5 power cycles duration Asymmetrical channel delay compensation using GPS: asymmetry up to 10 ms In-zone transformer group compensation: 0 to 330° in steps of 30° Inrush inhibit level: 1.0 to 40.0%f0 in steps of 0.1 Inrush inhibit mode: per-phase, 2-out-of-3, average Zero-sequence current differential (87LG): 87LG pickup level: 0.05 to 1.00 pu in steps of 0.01 87LG slope: 1 to 50% 87LG pickup delay: 0.00 to 5.00 s in steps of 0.01 87LG operate time: 1.5 to 2.5 cycles PHASE/NEUTRAL/GROUND TOC Current: Phasor or RMS Pickup level: 0.000 to 30.000 pu in steps of 0.001 Dropout level: 97% to 98% of pickup Level accuracy: 0.1 to 2.0 × CT: ±0.5% of reading or ±0.4% of rated (whichever is greater) > 2.0 × CT: ±1.5% of reading > 2.0 × CT rating Curve shapes: IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse, Short/Very/ Extremely Inverse; I2t; FlexCurves™ (programmable); Definite Time (0.01 s base curve) Curve multiplier: Time Dial = 0.00 to 600.00 in steps of 0.01 Reset type: Instantaneous/Timed (per IEEE) Timing accuracy: Operate at > 1.03 × actual pickup ±3.5% of operate time or ±½ cycle (whichever is greater) Voltage restraint: Modifies pickup current for voltage in the range of 0.1 2.0 × CT rating ±1.5% of reading Overreach: <2% Pickup delay: 0.00 to 600.00 s in steps of 0.01 Reset delay: 0.00 to 600.00 s in steps of 0.01 Operate time: <16 ms at 3 × pickup at 60 Hz (Phase/Ground IOC) <20 ms at 3 × pickup at 60 Hz (Neutral IOC) Timing accuracy: Operate at 1.5 × pickup ±3% or ±4 ms (whichever is greater) NEGATIVE SEQUENCE TOC Current: Phasor Pickup level: 0.000 to 30.000 pu in steps of 0.001 Dropout level: 97% to 98% of pickup Level accuracy: ±0.5% of reading or ±0.4% of rated (whichever is greater) from 0.1 to 2.0 x CT rating ±1.5% of reading > 2.0 x CT rating Curve shapes: IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse, Short/Very/ Extremely Inverse; I2t; FlexCurves™ (programmable); Definite Time (0.01 s base curve) Curve multiplier (Time dial): 0.00 to 600.00 in steps of 0.01 Reset type: Instantaneous/Timed (per IEEE) and Lin- ear Timing accuracy: Operate at > 1.03 × actual pickup ±3.5% of operate time or ±½ cycle (whichever is greater) NEGATIVE SEQUENCE IOC Current: Phasor Pickup level: 0.000 to 30.000 pu in steps of 0.001 Dropout level: 97 to 98% of pickup Level accuracy: 0.1 to 2.0 × CT rating: ±0.5% of reading or ±0.4% of rated (whichever is greater); > 2.0 × CT rating: ±1.5% of reading Overreach: < 2% Pickup delay: 0.00 to 600.00 s in steps of 0.01 Reset delay: 0.00 to 600.00 s in steps of 0.01 Operate time: < 20 ms at 3 × pickup at 60 Hz Timing accuracy: Operate at 1.5 × pickup ±3% or ±4 ms (whichever is greater) NOTE

2-19 2 PRODUCT DESCRIPTION 2.4 SPECIFICATIONS 2 PHASE DIRECTIONAL OVERCURRENT Relay connection: 90° (quadrature) Quadrature voltage: ABC phase seq.: phase A (VBC), phase B (VCA), phase C (VAB); ACB phase seq.: phase A (VCB), phase B (VAC), phase C (VBA) Polarizing voltage threshold: 0.000 to 3.000 pu in steps of 0.001 Current sensitivity threshold: 0.05 pu Characteristic angle: 0 to 359° in steps of 1 Angle accuracy: ±2° Operation time (FlexLogic™ operands): Tripping (reverse load, forward fault):< 12 ms, typically Blocking (forward load, reverse fault):< 8 ms, typically NEUTRAL DIRECTIONAL OVERCURRENT Directionality: Co-existing forward and reverse Polarizing: Voltage, Current, Dual Polarizing voltage: V_0 or VX Polarizing current: IG Operating current: I_0 Level sensing: 3 × (|I_0| – K × |I_1|), IG Restraint, K: 0.000 to 0.500 in steps of 0.001 Characteristic angle: –90 to 90° in steps of 1 Limit angle: 40 to 90° in steps of 1, independent for forward and reverse Angle accuracy: ±2° Offset impedance: 0.00 to 250.00 Ω in steps of 0.01 Pickup level: 0.002 to 30.000 pu in steps of 0.01 Dropout level: 97 to 98% Operation time: < 16 ms at 3 × pickup at 60 Hz PHASE UNDERVOLTAGE Voltage: Phasor only Pickup level: 0.000 to 3.000 pu in steps of 0.001 Dropout level: 102 to 103% of pickup Level accuracy: ±0.5% of reading from 10 to 208 V Curve shapes: GE IAV Inverse; Definite Time (0.1s base curve) Curve multiplier: Time dial = 0.00 to 600.00 in steps of 0.01 Timing accuracy: Operate at < 0.90 × pickup ±3.5% of operate time or ±4 ms (which- ever is greater) AUXILIARY UNDERVOLTAGE Pickup level: 0.000 to 3.000 pu in steps of 0.001 Dropout level: 102 to 103% of pickup Level accuracy: ±0.5% of reading from 10 to 208 V Curve shapes: GE IAV Inverse, Definite Time Curve multiplier: Time Dial = 0 to 600.00 in steps of 0.01 Timing accuracy: ±3% of operate time or ±4 ms (whichever is greater) PHASE OVERVOLTAGE Voltage: Phasor only Pickup level: 0.000 to 3.000 pu in steps of 0.001 Dropout level: 97 to 98% of pickup Level accuracy: ±0.5% of reading from 10 to 208 V Pickup delay: 0.00 to 600.00 in steps of 0.01 s Operate time: < 30 ms at 1.10 × pickup at 60 Hz Timing accuracy: ±3% or ±4 ms (whichever is greater) AUXILIARY OVERVOLTAGE Pickup level: 0.000 to 3.000 pu in steps of 0.001 Dropout level: 97 to 98% of pickup Level accuracy: ±0.5% of reading from 10 to 208 V Pickup delay: 0 to 600.00 s in steps of 0.01 Reset delay: 0 to 600.00 s in steps of 0.01 Timing accuracy: ±3% of operate time or ±4 ms (whichever is greater) Operate time: < 30 ms at 1.10 × pickup at 60 Hz NEGATIVE SEQUENCE OVERVOLTAGE Pickup level: 0.000 to 1.250 pu in steps of 0.001 Dropout level: 97 to 98% of pickup Level accuracy: ±0.5% of reading from 10 to 208 V Pickup delay: 0 to 600.00 s in steps of 0.01 Reset delay: 0 to 600.00 s in steps of 0.01 Time accuracy: ±3% or ±20 ms, whichever is greater Operate time: < 30 ms at 1.10 × pickup at 60 Hz UNDERFREQUENCY Minimum signal: 0.10 to 1.25 pu in steps of 0.01 Pickup level: 20.00 to 65.00 Hz in steps of 0.01 Dropout level: pickup + 0.03 Hz Level accuracy: ±0.001 Hz Time delay: 0 to 65.535 s in steps of 0.001 Timer accuracy: ±3% or 4 ms, whichever is greater Operate time: typically 4 cycles at 0.1 Hz/s change typically 3.5 cycles at 0.3 Hz/s change typically 3 cycles at 0.5 Hz/s change Typical times are average operate times including variables such as frequency change instance, test method, etc., and may vary by ±0.5 cycles. BREAKER FAILURE Mode: 1-pole, 3-pole Current supervision: phase, neutral current Current supv. pickup: 0.001 to 30.000 pu in steps of 0.001 Current supv. dropout: 97 to 98% of pickup Current supv. accuracy: 0.1 to 2.0 × CT rating: ±0.75% of reading or ±2% of rated (whichever is greater) above 2 × CT rating: ±2.5% of reading

GE Multilin 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 BREAKER ARCING CURRENT Principle: accumulates breaker duty (I2t) and mea- sures fault duration Initiation: programmable per phase from any Flex- Logic™ operand Compensation for auxiliary relays: 0 to 65.535 s in steps of 0.001 Alarm threshold: 0 to 50000 kA2-cycle in steps of 1 Fault duration accuracy: 0.25 of a power cycle Availability: 1 per CT bank with a minimum of 2 SYNCHROCHECK Max voltage difference: 0 to 400000 V in steps of 1 Max angle difference: 0 to 100° in steps of 1 Max freq. difference: 0.00 to 2.00 Hz in steps of 0.01 Hysteresis for max. freq. diff.: 0.00 to 0.10 Hz in steps of 0.01 Dead source function: None, LV1 & DV2, DV1 & LV2, DV1 or DV2, DV1 xor DV2, DV1 & DV2 (L = Live, D = Dead) AUTORECLOSURE Single breaker applications, 3-pole tripping schemes Up to 4 reclose attempts before lockout Independent dead time setting before each shot Possibility of changing protection settings after each shot with FlexLogic™ THERMAL OVERLOAD PROTECTION Thermal overload curves: IEC 255-8 curve Base current: 0.20 to 3.00 pu in steps of 0.01 Overload (k) factor: 1.00 to 1.20 pu in steps of 0.05 Trip time constant: 0 to 1000 min. in steps of 1 Reset time constant: 0 to 1000 min. in steps of 1 Minimum reset time: 0 to 1000 min. in steps of 1 Timing accuracy (cold curve): ±100 ms or 2%, whichever is greater Timing accuracy (hot curve): ±500 ms or 2%, whichever is greater for Ip < 0.9 × k × Ib and I / (k × Ib) > 1.1 TRIP BUS (TRIP WITHOUT FLEXLOGIC™) Number of elements: 6 Number of inputs: 16 Operate time: <2 ms at 60 Hz Time accuracy: ±3% or 10 ms, whichever is greater 2.4.2 USER-PROGRAMMABLE ELEMENTS FLEXLOGIC™ Programming language: Reverse Polish Notation with graphical visualization (keypad programmable) Lines of code: 512 Internal variables: 64 Supported operations: NOT, XOR, OR (2 to 16 inputs), AND (2 to 16 inputs), NOR (2 to 16 inputs), NAND (2 to 16 inputs), latch (reset-domi- nant), edge detectors, timers Inputs: any logical variable, contact, or virtual input Number of timers: 32 Pickup delay: 0 to 60000 (ms, sec., min.) in steps of 1 Dropout delay: 0 to 60000 (ms, sec., min.) in steps of 1 FLEXCURVES™ Number: 4 (A through D) Reset points: 40 (0 through 1 of pickup) Operate points: 80 (1 through 20 of pickup) Time delay: 0 to 65535 ms in steps of 1 FLEX STATES Number: up to 256 logical variables grouped under 16 Modbus addresses Programmability: any logical variable, contact, or virtual input FLEXELEMENTS™ Number of elements: 8 Operating signal: any analog actual value, or two values in differential mode Operating signal mode: signed or absolute value Operating mode: level, delta Comparator direction: over, under Pickup Level: –90.000 to 90.000 pu in steps of 0.001 Hysteresis: 0.1 to 50.0% in steps of 0.1 Delta dt: 20 ms to 60 days Pickup & dropout delay: 0.000 to 65.535 s in steps of 0.001 NON-VOLATILE LATCHES Type: set-dominant or reset-dominant Number: 16 (individually programmed) Output: stored in non-volatile memory Execution sequence: as input prior to protection, control, and FlexLogic™ USER-PROGRAMMABLE LEDs Number: 48 plus trip and alarm Programmability: from any logical variable, contact, or vir- tual input Reset mode: self-reset or latched

2-21 2 PRODUCT DESCRIPTION 2.4 SPECIFICATIONS 2 LED TEST Initiation: from any digital input or user-program- mable condition Number of tests: 3, interruptible at any time Duration of full test: approximately 3 minutes Test sequence 1: all LEDs on Test sequence 2: all LEDs off, one LED at a time on for 1 s Test sequence 3: all LEDs on, one LED at a time off for 1 s USER-DEFINABLE DISPLAYS Number of displays: 16 Lines of display: 2 × 20 alphanumeric characters Parameters: up to 5, any Modbus register addresses Invoking and scrolling: keypad, or any user-programmable con- dition, including pushbuttons CONTROL PUSHBUTTONS Number of pushbuttons: 7 Operation: drive FlexLogic™ operands USER-PROGRAMMABLE PUSHBUTTONS (OPTIONAL) Number of pushbuttons: 12 (standard faceplate); 16 (enhanced faceplate) Mode: self-reset, latched Display message: 2 lines of 20 characters each Drop-out timer: 0.00 to 60.00 s in steps of 0.05 Autoreset timer: 0.2 to 600.0 s in steps of 0.1 Hold timer: 0.0 to 10.0 s in steps of 0.1 SELECTOR SWITCH Number of elements: 2 Upper position limit: 1 to 7 in steps of 1 Selecting mode: time-out or acknowledge Time-out timer: 3.0 to 60.0 s in steps of 0.1 Control inputs: step-up and 3-bit Power-up mode: restore from non-volatile memory or syn- chronize to a 3-bit control input or synch/ restore mode DIGITAL ELEMENTS Number of elements: 48 Operating signal: any FlexLogic™ operand Pickup delay: 0.000 to 999999.999 s in steps of 0.001 Dropout delay: 0.000 to 999999.999 s in steps of 0.001 Timing accuracy: ±3% or ±4 ms, whichever is greater 2.4.3 MONITORING OSCILLOGRAPHY Maximum records: 64 Sampling rate: 64 samples per power cycle Triggers: any element pickup, dropout, or operate; digital input change of state; digital out- put change of state; FlexLogic™ equa- tion Data: AC input channels; element state; digital input state; digital output state Data storage: in non-volatile memory EVENT RECORDER Capacity: 1024 events Time-tag: to 1 microsecond Triggers: any element pickup, dropout, or operate; digital input change of state; digital out- put change of state; self-test events Data storage: in non-volatile memory DATA LOGGER Number of channels: 1 to 16 Parameters: any available analog actual value Sampling rate: 15 to 3600000 ms in steps of 1 Trigger: any FlexLogic™ operand Mode: continuous or triggered Storage capacity: (NN is dependent on memory) 1-second rate: 01 channel for NN days 16 channels for NN days ↓ 60-minute rate: 01 channel for NN days 16 channels for NN days

GE Multilin 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 FAULT LOCATOR Number of independent fault locators: 1 per CT bank Method: single-ended Voltage source: wye-connected VTs, delta-connected VTs and neutral voltage, delta-connected VTs and zero-sequence current (approxi- mation) Maximum accuracy if: fault resistance is zero or fault currents from all line terminals are in phase Relay accuracy: ±1.5% (V > 10 V, I > 0.1 pu) Worst-case accuracy: VT%error + user data CT%error + user data ZLine%error + user data METHOD%error + see chapter 8 RELAY ACCURACY%error + (1.5%) PHASOR MEASUREMENT UNIT Output format: per IEEE C37.118 standard Number of channels: 14 synchrophasors, 8 analogs, 16 digi- tals TVE (total vector error) <1% Triggering: frequency, voltage, current, power, rate of change of frequency, user-defined Reporting rate: 1, 2, 5, 10, 12, 15, 20, 25, 30, 50, or 60 times per second Number of clients: One over TCP/IP port, two over UDP/IP ports AC ranges: As indicated in appropriate specifications sections Network reporting format: 16-bit integer or 32-bit IEEE floating point numbers Network reporting style: rectangular (real and imaginary) or polar (magnitude and angle) coordinates Post-filtering: none, 3-point, 5-point, 7-point Calibration: ±5° 2.4.4 METERING RMS CURRENT: PHASE, NEUTRAL, AND GROUND Accuracy at 0.1 to 2.0 × CT rating: ±0.25% of reading or ±0.1% of rated (whichever is greater) > 2.0 × CT rating: ±1.0% of reading RMS VOLTAGE Accuracy: ±0.5% of reading from 10 to 208 V REAL POWER (WATTS) Accuracy: ±1.0% of reading at –0.8 < PF ≤ –1.0 and 0.8 < PF ≤ 1.0 REACTIVE POWER (VARS) Accuracy: ±1.0% of reading at –0.2 ≤ PF ≤ 0.2 APPARENT POWER (VA) Accuracy: ±1.0% of reading FREQUENCY Accuracy at V = 0.8 to 1.2 pu: ±0.01 Hz (when voltage signal is used for frequency measurement) I = 0.1 to 0.25 pu: ±0.05 Hz I > 0.25 pu: ±0.02 Hz (when current signal is used for frequency measurement) 2.4.5 INPUTS AC CURRENT CT rated primary: 1 to 50000 A CT rated secondary: 1 A or 5 A by connection Nominal frequency: 20 to 65 Hz Relay burden: < 0.2 VA at rated secondary Conversion range: Standard CT: 0.02 to 46 × CT rating RMS symmetrical Sensitive Ground CT module: 0.002 to 4.6 × CT rating RMS symmetrical Current withstand: 20 ms at 250 times rated 1 sec. at 100 times rated continuous 4xInom Short circuit rating:150000 RMS sym- metrical amperes, 250 V maximum (pri- mary current to external CT) AC VOLTAGE VT rated secondary: 50.0 to 240.0 V VT ratio: 1.00 to 24000.00 Nominal frequency: 20 to 65 Hz; the nominal system fre- quency should be chosen as 50 Hz or 60 Hz only. Relay burden: < 0.25 VA at 120 V Conversion range: 1 to 275 V Voltage withstand: continuous at 260 V to neutral 1 min./hr at 420 V to neutral CONTACT INPUTS Dry contacts: 1000 Ω maximum Wet contacts: 300 V DC maximum Selectable thresholds: 17 V, 33 V, 84 V, 166 V Tolerance: ±10% Contacts per common return: 4 Recognition time: < 1 ms Debounce time: 0.0 to 16.0 ms in steps of 0.5 Continuous current draw:4 mA (when energized)

2-23 2 PRODUCT DESCRIPTION 2.4 SPECIFICATIONS 2 CONTACT INPUTS WITH AUTO-BURNISHING Dry contacts: 1000 Ω maximum Wet contacts: 300 V DC maximum Selectable thresholds: 17 V, 33 V, 84 V, 166 V Tolerance: ±10% Contacts per common return: 2 Recognition time: < 1 ms Debounce time: 0.0 to 16.0 ms in steps of 0.5 Continuous current draw:4 mA (when energized) Auto-burnish impulse current: 50 to 70 mA Duration of auto-burnish impulse: 25 to 50 ms DCMA INPUTS Current input (mA DC): 0 to –1, 0 to +1, –1 to +1, 0 to 5, 0 to 10, 0 to 20, 4 to 20 (programmable) Input impedance: 379 Ω ±10% Conversion range: –1 to + 20 mA DC Accuracy: ±0.2% of full scale Type: Passive RTD INPUTS Types (3-wire): 100 Ω Platinum, 100 & 120 Ω Nickel, 10 Ω Copper Sensing current: 5 mA Range: –50 to +250°C Accuracy: ±2°C Isolation: 36 V pk-pk IRIG-B INPUT Amplitude modulation: 1 to 10 V pk-pk DC shift: TTL Input impedance: 22 kΩ Isolation: 2 kV REMOTE INPUTS (IEC 61850 GSSE/GOOSE) Input points: 32, configured from 64 incoming bit pairs Remote devices: 16 Default states on loss of comms.: On, Off, Latest/Off, Latest/On Remote DPS inputs: 5 2.4.6 POWER SUPPLY LOW RANGE Nominal DC voltage: 24 to 48 V Minimum DC voltage: 20 V Maximum DC voltage: 60 V Voltage loss hold-up: 20 ms duration at nominal NOTE: Low range is DC only. HIGH RANGE Nominal DC voltage: 125 to 250 V Minimum DC voltage: 88 V Maximum DC voltage: 300 V Nominal AC voltage: 100 to 240 V at 50/60 Hz Minimum AC voltage: 88 V at 25 to 100 Hz Maximum AC voltage: 265 V at 25 to 100 Hz Voltage loss hold-up: 200 ms duration at nominal ALL RANGES Volt withstand: 2 × Highest Nominal Voltage for 10 ms Power consumption: typical = 15 to 20 W/VA maximum = 50 W/VA contact factory for exact order code con- sumption INTERNAL FUSE RATINGS Low range power supply: 8 A / 250 V High range power supply: 4 A / 250 V INTERRUPTING CAPACITY AC: 100 000 A RMS symmetrical DC: 10 000 A 2.4.7 OUTPUTS FORM-A RELAY Make and carry for 0.2 s: 30 A as per ANSI C37.90 Carry continuous: 6 A Break (DC inductive, L/R = 40 ms): Operate time: < 4 ms Contact material: silver alloy LATCHING RELAY Make and carry for 0.2 s: 30 A as per ANSI C37.90 Carry continuous: 6 A as per IEEE C37.90 Break (DC resistive as per IEC 61810-1): Operate time: < 4 ms Contact material: silver alloy Control: separate operate and reset inputs Control mode: operate-dominant or reset-dominant FORM-A VOLTAGE MONITOR Applicable voltage: approx. 15 to 250 V DC Trickle current: approx. 1 to 2.5 mA VOLTAGE CURRENT 24 V 1 A 48 V 0.5 A 125 V 0.3 A 250 V 0.2 A VOLTAGE CURRENT 24 V 6 A 48 V 1.6 A 125 V 0.4 A 250 V 0.2 A

GE Multilin 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 FORM-A CURRENT MONITOR Threshold current: approx. 80 to 100 mA FORM-C AND CRITICAL FAILURE RELAY Make and carry for 0.2 s: 30 A as per ANSI C37.90 Carry continuous: 8 A Break (DC inductive, L/R = 40 ms): Operate time: < 8 ms Contact material: silver alloy FAST FORM-C RELAY Make and carry: 0.1 A max. (resistive load) Minimum load impedance: Operate time: < 0.6 ms Internal Limiting Resistor: 100 Ω, 2 W SOLID-STATE OUTPUT RELAY Operate and release time: <100 μs Maximum voltage: 265 V DC Maximum continuous current: 5 A at 45°C; 4 A at 65°C Make and carry: for 0.2 s: 30 A as per ANSI C37.90 for 0.03 s 300 A Breaking capacity: IRIG-B OUTPUT Amplitude: 10 V peak-peak RS485 level Maximum load: 100 ohms Time delay: 1 ms for AM input 40 μs for DC-shift input Isolation: 2 kV CONTROL POWER EXTERNAL OUTPUT (FOR DRY CONTACT INPUT) Capacity: 100 mA DC at 48 V DC Isolation: ±300 Vpk REMOTE OUTPUTS (IEC 61850 GSSE/GOOSE) Standard output points: 32 User output points: 32 DCMA OUTPUTS Range: –1 to 1 mA, 0 to 1 mA, 4 to 20 mA Max. load resistance: 12 kΩ for –1 to 1 mA range 12 kΩ for 0 to 1 mA range 600 Ω for 4 to 20 mA range Accuracy: ±0.75% of full-scale for 0 to 1 mA range ±0.5% of full-scale for –1 to 1 mA range ±0.75% of full-scale for 0 to 20 mA range 99% Settling time to a step change: 100 ms Isolation: 1.5 kV Driving signal: any FlexAnalog quantity Upper and lower limit for the driving signal: –90 to 90 pu in steps of 0.001 ETHERNET SWITCH (HIGH VOLTAGE, TYPE 2S) Nominal DC voltage: 110 to 240 V DC Minimum DC voltage: 88 V DC Maximum DC voltage: 300 V DC Input Current: 0.9 A DC maximum Nominal AC voltage: 100 to 240 V AC, 0.26 to 0.16 A/26 to 39 VA at 50/60 Hz Minimum AC voltage: 85 V AC, 0.31 A/22 VA at 50/60 Hz Maximum AC voltage: 265 V AC, 0.16 A/42 VA at 50/60 Hz Internal fuse: 3 A / 350 V AC, Ceramic, Axial SLO BLO; Manufacturer: Conquer; Part number: SCD-A 003 ETHERNET SWITCH (LOW VOLTAGE, TYPE 2T) Nominal voltage: 48 V DC, 0.31 A/15 W Minimum voltage: 30 V DC, 0.43 A/16 W Maximum voltage: 60 V DC Internal fuse: 5 A / 350 V AC, Ceramic, Axial SLO BLO; Manufacturer: Conquer; Part number: SCD-A 005 VOLTAGE CURRENT 24 V 1 A 48 V 0.5 A 125 V 0.3 A 250 V 0.2 A INPUT VOLTAGE IMPEDANCE 2 W RESISTOR 1 W RESISTOR 250 V DC 20 KΩ 50 KΩ 120 V DC 5 KΩ 2 KΩ 48 V DC 2 KΩ 2 KΩ 24 V DC 2 KΩ 2 KΩ Note: values for 24 V and 48 V are the same due to a required 95% voltage drop across the load impedance. UL508 Utility application (autoreclose scheme) Industrial application Operations/ interval 5000 ops / 1 s-On, 9 s-Off 5 ops / 0.2 s-On, 0.2 s-Off within 1 minute 10000 ops / 0.2 s-On, 30 s-Off 1000 ops / 0.5 s-On, 0.5 s-Off Break capability (0 to 250 V DC) 3.2 A L/R = 10 ms 10 A L/R = 40 ms 10 A L/R = 40 ms 1.6 A L/R = 20 ms 0.8 A L/R = 40 ms

2-25 2 PRODUCT DESCRIPTION 2.4 SPECIFICATIONS 2 2.4.8 COMMUNICATION PROTOCOLS RS232 Front port: 19.2 kbps, Modbus® RTU RS485 1 or 2 rear ports: Up to 115 kbps, Modbus® RTU, DNP 3 Typical distance: 1200 m Isolation: 2 kV, isolated together at 36 Vpk ETHERNET (FIBER) The UR-2S and UR-2T only support 100 Mb multimode ETHERNET (10/100 MB TWISTED PAIR) Modes: 10 MB, 10/100 MB (auto-detect) Connector: RJ45 SNTP clock synchronization error: <10 ms (typical) ETHERNET SWITCH FIBER OPTIC PORTS Maximum fiber segment length calculation: The maximum fiber segment length between two adjacent switches or between a switch and a device is calculated as fol- lows. First, calculate the optical power budget (OPB) of each device using the manufacturer’s data sheets. where OPB = optical power budget, PT = transmitter output power, and PR = receiver sensitivity. The worst case optical power budget (OPBWORST) is then calcu- lated by taking the lower of the two calculated power budgets, sub- tracting 1 dB for LED aging, and then subtracting the total insertion loss. The total insertion loss is calculated by multiplying the num- ber of connectors in each single fiber path by 0.5 dB. For example, with a single fiber cable between the two devices, there will be a minimum of two connections in either transmit or receive fiber paths for a total insertion loss of 1db for either direction: The worst-case optical power budget between two type 2T or 2S modules using a single fiber cable is: To calculate the maximum fiber length, divide the worst-case opti- cal power budget by the cable attenuation per unit distance speci- fied in the manufacturer data sheets. For example, typical attenuation for 62.5/125 μm glass fiber optic cable is approxi- mately 2.8 dB per km. In our example, this would result in the fol- lowing maximum fiber length: The customer must use the attenuation specified within the manu- facturer data sheets for accurate calculation of the maximum fiber length. ETHERNET SWITCH 10/100BASE-T PORTS Connector type: RJ45 MAXIMUM 10 MBPS ETHERNET SEGMENT LENGTHS Unshielded twisted pair: 100 m (328 ft.) Shielded twisted pair: 150 m (492 ft.) MAXIMUM STANDARD FAST ETHERNET SEGMENT LENGTHS 10Base-T (CAT 3, 4, 5 UTP): 100 m (328 ft.) 100Base-TX (CAT 5 UTP):100 m (328 ft.) Shielded twisted pair: 150 m (492 ft.) OTHER TFTP, HTTP, IEC 60870-5-104, Ethernet Global Data (EGD) PARAMETER FIBER TYPE 10MB MULTI- MODE 100MB MULTI- MODE 100MB SINGLE- MODE Wavelength 820 nm 1310 nm 1310 nm Connector ST ST SC Transmit power –20 dBm –20 dBm –15 dBm Receiver sensitivity –30 dBm –30 dBm –30 dBm Power budget 10 dB 10 dB 15 dB Maximum input power –7.6 dBm –14 dBm –7 dBm Typical distance 1.65 km 2 km 15 km Duplex full/half full/half full/half Redundancy yes yes yes OPB PT MIN ( ) PR MIN ( ) – = Total insertion loss number of connectors × 0.5 dB = 2 × 0.5 dB = 1.0 dB = OPBWORST OPB – 1 dB (LED aging) – total insertion loss = 10dB – 1dB – 1dB 8dB = Maximum fiber length OPBWORST (in dB) cable loss (in dB/km) ------------------------------------------------------- = 8 dB 2.8 dB/km = --------------------------- 2.8km =

GE Multilin 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 2.4.9 INTER-RELAY COMMUNICATIONS SHIELDED TWISTED-PAIR INTERFACE OPTIONS RS422 distance is based on transmitter power and does not take into consideration the clock source provided by the user. LINK POWER BUDGET These power budgets are calculated from the manu- facturer’s worst-case transmitter power and worst case receiver sensitivity. The power budgets for the 1300nm ELED are calcu- lated from the manufacturer's transmitter power and receiver sensitivity at ambient temperature. At extreme temperatures these values will deviate based on component tolerance. On average, the out- put power will decrease as the temperature is increased by a factor 1dB / 5°C. MAXIMUM OPTICAL INPUT POWER TYPICAL LINK DISTANCE Compensated difference in transmitting and receiving (channel asymmetry) channel delays using GPS satellite clock: 10 ms 2.4.10 ENVIRONMENTAL AMBIENT TEMPERATURES Storage temperature: –40 to 85°C Operating temperature: –40 to 60°C; the LCD contrast may be impaired at temperatures less than – 20°C HUMIDITY Humidity: operating up to 95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6days). OTHER Altitude: 2000 m (maximum) Pollution degree: II Overvoltage category: II Ingress protection: IP20 front, IP10 back Noise 0 dB INTERFACE TYPE TYPICAL DISTANCE RS422 1200 m G.703 100 m EMITTER, FIBER TYPE TRANSMIT POWER RECEIVED SENSITIVITY POWER BUDGET 820 nm LED, Multimode –20 dBm –30 dBm 10 dB 1300 nm LED, Multimode –21 dBm –30 dBm 9 dB 1300 nm ELED, Singlemode –23 dBm –32 dBm 9 dB 1300 nm Laser, Singlemode –1 dBm –30 dBm 29 dB 1550 nm Laser, Singlemode +5 dBm –30 dBm 35 dB EMITTER, FIBER TYPE MAX. OPTICAL INPUT POWER 820 nm LED, Multimode –7.6 dBm 1300 nm LED, Multimode –11 dBm 1300 nm ELED, Singlemode –14 dBm 1300 nm Laser, Singlemode –14 dBm 1550 nm Laser, Singlemode –14 dBm NOTE NOTE NOTE EMITTER TYPE CABLE TYPE CONNECTOR TYPE TYPICAL DISTANCE 820 nm LED, multimode 62.5/125 μm ST 1.65 km 50/125 μm ST 1.65 km 1300 nm LED, multimode 62.5/125 μm ST 4 km 50/125 μm ST 4 km 1300 nm ELED, single mode 9/125 μm ST 11.4 km 1300 nm Laser, single mode 9/125 μm ST 64 km 1550 nm Laser, single-mode 9/125 μm ST 105 km Typical distances listed are based on the follow- ing assumptions for system loss. As actual losses will vary from one installation to another, the dis- tance covered by your system may vary. CONNECTOR LOSSES (TOTAL OF BOTH ENDS) ST connector 2 dB FIBER LOSSES 820 nm multimode 3 dB/km 1300 nm multimode 1 dB/km 1300 nm singlemode 0.35 dB/km 1550 nm singlemode 0.25 dB/km Splice losses: One splice every 2 km, at 0.05 dB loss per splice. SYSTEM MARGIN 3 dB additional loss added to calculations to compensate for all other losses. NOTE

2-27 2 PRODUCT DESCRIPTION 2.4 SPECIFICATIONS 2 2.4.11 TYPE TESTS L30 TYPE TESTS 2.4.12 PRODUCTION TESTS THERMAL Products go through an environmental test based upon an Accepted Quality Level (AQL) sampling process. TEST REFERENCE STANDARD TEST LEVEL Dielectric voltage withstand EN60255-5 2.2 kV Impulse voltage withstand EN60255-5 5 kV Damped oscillatory IEC61000-4-18 / IEC60255-22-1 2.5 kV CM, 1 kV DM Electrostatic discharge EN61000-4-2 / IEC60255-22-2 Level 3 RF immunity EN61000-4-3 / IEC60255-22-3 Level 3 Fast transient disturbance EN61000-4-4 / IEC60255-22-4 Class A and B Surge immunity EN61000-4-5 / IEC60255-22-5 Level 3 and 4 Conducted RF immunity EN61000-4-6 / IEC60255-22-6 Level 3 Power frequency immunity EN61000-4-7 / IEC60255-22-7 Class A and B Voltage interruption and ripple DC IEC60255-11 12% ripple, 200 ms interrupts Radiated and conducted emissions CISPR11 / CISPR22 / IEC60255-25 Class A Sinusoidal vibration IEC60255-21-1 Class 1 Shock and bump IEC60255-21-2 Class 1 Seismic IEC60255-21-3 Class 1 Power magnetic immunity IEC61000-4-8 Level 5 Pulse magnetic immunity IEC61000-4-9 Level 4 Damped magnetic immunity IEC61000-4-10 Level 4 Voltage dip and interruption IEC61000-4-11 0, 40, 70, 80% dips; 250 / 300 cycle interrupts Damped oscillatory IEC61000-4-12 2.5 kV CM, 1 kV DM Conducted RF immunity, 0 to 150 kHz IEC61000-4-16 Level 4 Voltage ripple IEC61000-4-17 15% ripple Ingress protection IEC60529 IP40 front, IP10 back Cold IEC60068-2-1 –40°C for 16 hours Hot IEC60068-2-2 85°C for 16 hours Humidity IEC60068-2-30 6 days, variant 1 Damped oscillatory IEEE/ANSI C37.90.1 2.5 kV, 1 MHz RF immunity IEEE/ANSI C37.90.2 20 V/m, 80 MHz to 1 GHz Safety UL508 e83849 NKCR Safety UL C22.2-14 e83849 NKCR7 Safety UL1053 e83849 NKCR

GE Multilin 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 2.4.13 APPROVALS APPROVALS EAC The EAC Technical Regulations (TR) for Machines and Equipment apply to the Customs Union (CU) of the Russian Federation, Belarus, and Kazakhstan. 2.4.14 MAINTENANCE MOUNTING Attach mounting brackets using 20 inch-pounds (±2 inch-pounds) of torque. CLEANING Normally, cleaning is not required; but for situations where dust has accumulated on the faceplate display, a dry cloth can be used. Units that are stored in a de-energized state should be powered up once per year, for one hour continuously, to avoid deterioration of electrolytic capacitors. COMPLIANCE APPLICABLE COUNCIL DIRECTIVE ACCORDING TO CE Low voltage directive EN 60255-5 EMC directive EN 60255-26 / EN 50263 EN 61000-6-5 C-UL-US --- UL 508 UL 1053 C22.2 No. 14 EAC Machines and Equipment TR CU 010/2011 ITEM DESCRIPTION Country of origin Puerto Rico or Canada; see label on rear of UR Date of manufacture See label on rear of UR Declaration of Conformity and/or Certificate of Conformity Available upon request ������

3-1 3 HARDWARE 3.1 DESCRIPTION 3 3 HARDWARE 3.1DESCRIPTION 3.1.1 PANEL CUTOUT a) HORIZONTAL UNITS The L30 Line Current Differential System is available as a 19-inch rack horizontal mount unit with a removable faceplate. The faceplate can be specified as either standard or enhanced at the time of ordering. The enhanced faceplate contains additional user-programmable pushbuttons and LED indicators. The modular design allows the relay to be easily upgraded or repaired by a qualified service person. The faceplate is hinged to allow easy access to the removable modules, and is itself removable to allow mounting on doors with limited rear depth. The case dimensions are shown below, along with panel cutout details for panel mounting. When planning the location of your panel cutout, ensure that provision is made for the faceplate to swing open without interference to or from adjacent equipment. The relay must be mounted such that the faceplate sits semi-flush with the panel or switchgear door, allowing the operator access to the keypad and the RS232 communications port. The relay is secured to the panel with the use of four screws supplied with the relay. Figure 3–1: L30 HORIZONTAL DIMENSIONS (ENHANCED PANEL) ������ ����������� ������ ����������� ������� ����������� ����� ���������� ������ ����������� ������� ����������� ������ ����������� ������������

GE Multilin 3.1 DESCRIPTION 3 HARDWARE 3 Figure 3–2: L30 HORIZONTAL MOUNTING (ENHANCED PANEL) Figure 3–3: L30 HORIZONTAL MOUNTING AND DIMENSIONS (STANDARD PANEL) b) VERTICAL UNITS The L30 Line Current Differential System is available as a reduced size (¾) vertical mount unit, with a removable faceplate. The faceplate can be specified as either standard or enhanced at the time of ordering. The enhanced faceplate contains additional user-programmable pushbuttons and LED indicators. The modular design allows the relay to be easily upgraded or repaired by a qualified service person. The faceplate is hinged to allow easy access to the removable modules, and is itself removable to allow mounting on doors with limited rear depth. The case dimensions are shown below, along with panel cutout details for panel mounting. When planning the location of your panel cutout, ensure that provision is made for the faceplate to swing open without interference to or from adjacent equipment. The relay must be mounted such that the faceplate sits semi-flush with the panel or switchgear door, allowing the operator access to the keypad and the RS232 communications port. The relay is secured to the panel with the use of four screws supplied with the relay. ������� ����������� ������������ ������ ��������� �������� ������ ����������� ������� ����������� ������� ������ ���������� ����� ���������� ��������������������� ������������������������������� ������ ���������� �������� ���������������� ���������� �������� ������ ���������� ����� ���������� ����� ���������� ������ ���������� ����� ���������� ������ ������ ���������� ����� ���������� ����� ��������� ��������� �������� �������� ������ ���������� ������ ���������� ����� ���������� ����������� ����� ���������� ������ �������� ������ �������� ������������������������������������������������ ����� ������� ������������ ������ ������ ������������ ������ ���������� ����� ���������� ������������

3-3 3 HARDWARE 3.1 DESCRIPTION 3 Figure 3–4: L30 VERTICAL DIMENSIONS (ENHANCED PANEL) ����� ���������� ������ ���������� ������ ���������� ����� ��������� ����� ���������� ����� ���������� ����� ���������� ����� ���������� ������ ���������� ������ ���������� ����� �������� ����� ��������� �������� ������ ��������� �������������� ���������������� ���������������������������� �������������������������� �������������������������������� ������ ��������������� �������������� ��������������� ����� ����� �������������� ���������������� ��������������������������� ������������

GE Multilin 3.1 DESCRIPTION 3 HARDWARE 3 Figure 3–5: L30 VERTICAL MOUNTING AND DIMENSIONS (STANDARD PANEL) For side mounting L30 devices with the enhanced front panel, see the following documents available on the UR DVD and the GE Digital Energy website: • GEK-113180: UR-Series UR-V Side-Mounting Front Panel Assembly Instructions • GEK-113181: Connecting a Remote UR-V Enhanced Front Panel to a Vertical UR Device Instruction Sheet • GEK-113182: Connecting a Remote UR-V Enhanced Front Panel to a Vertically-Mounted Horizontal UR Device Instruction Sheet For side mounting L30 devices with the standard front panel, use the following figures. ������ ���������� ����� ����������� ������ ���������� �������� ����� ����� ����� ����� ���������������� ����� ��������� ���� ������� ����� ���������� ����� ��������� ������ ���������� ������ ���������� ���������������� �������� ������������������� ������������������ ������������ ����������������������� ����� ��������� ����� ���������� ����� ���������� ��������������� ���������������� ��������������� �������������� ��������������������

3-5 3 HARDWARE 3.1 DESCRIPTION 3 Figure 3–6: L30 VERTICAL SIDE MOUNTING INSTALLATION (STANDARD PANEL)

GE Multilin 3.1 DESCRIPTION 3 HARDWARE 3 Figure 3–7: L30 VERTICAL SIDE MOUNTING REAR DIMENSIONS (STANDARD PANEL) ������� ����� ������ ����� ������ ����� ������� ������ ������� ���������������������� ����� ����������������� ���������� �������������������� ������ ����������� ����� ������� ��������������� �������������� ������������������� ��� ��� ��� ��� ����� ������ ����� ������ ����� ������� � ���� ����� � ����� ������ ���� ������� � ������������

3-7 3 HARDWARE 3.1 DESCRIPTION 3 3.1.2 REAR TERMINAL LAYOUT Figure 3–8: REAR TERMINAL VIEW Do not touch any rear terminals while the relay is energized. The relay follows a convention with respect to terminal number assignments which are three characters long assigned in order by module slot position, row number, and column letter. Two-slot wide modules take their slot designation from the first slot position (nearest to CPU module) which is indicated by an arrow marker on the terminal block. See the following figure for an example of rear terminal assignments. Figure 3–9: EXAMPLE OF MODULES IN F AND H SLOTS V X U W T S P N M L K J H D G F B R 8 4 7 3 6 2 5 1 b 8 4 7 3 6 2 5 1 a a b c a b c a b c a b c a b c 4 3 2 1 b 4 3 2 1 a IN OUT Tx1 Tx2 Rx2 Rx1 CH1 Tx CH2 Rx CH1 CH2 ® ® Technical Support: Tel: (905) 294-6222 Fax: (905) 201-2098 Model: Mods: Wiring Diagram: Inst. Manual: Serial Number: Firmware: Mfg. Date: L30D00HCHF8AH6AM6BP8BX7A 000 831817 GEK-113496 MAZB98000029 D 2008/01/05 Control Power: Contact Inputs: Contact Outputs: 88-300V DC @ 35W / 77-265V AC @ 35VA 300V DC Max 10mA Standard Pilot Duty / 250V AC 7.5A 360V A Resistive / 125V DC Break 4A @ L/R = 40mS / 300W RATINGS: L30 Line Differential Relay Made in Canada - M A A B 9 7 0 0 0 0 9 9 - http://www.GEmultilin.com GE Multilin Optional Ethernet switch Optional direct input/output module CPU module (Ethernet not available when ordered with Ethernet switch) Optional contact input/output module CT/VT module Power supply module Tx1 Tx2 Rx1 Rx2 Tx1 Tx2 831816A1.CDR Optional CT/VT or contact input/output module Optional contact input/output module Optional contact input/ output module �������

GE Multilin 3.2 WIRING 3 HARDWARE 3 3.2WIRING 3.2.1 TYPICAL WIRING Figure 3–10: TYPICAL WIRING DIAGRAM ������������ ������������������ ������� � � � �� ��� �������� � ��� ��� ��� ��� ���� ���� � � � � �� � � � � �� ������ ��������� �������� �������� ����� ��������� � � � � � � � � � � � � � � � � ��������������������� ���������������������������������� �������������� ������� ������������� �������� �� ����������� �� ������ ��� �������� � �� �� � � ������������������� ����������� ������������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ���������� ���������� ����� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� �� �� �� �� � � � � � � � � �������������������������� �� ����������������� ����������������� ����������������� ����������������� ���������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����� ��� �� �� �� �� �� �� �������������������������� �� � � � � � � � � � � � � ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� �� ��������������� �� �� �� �� �� �� �� �� �������� ������� ������� ������ ������� ����� �� �� ������������ � ������ ����� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����������� ������ ��� ����� ��������� ����� ��������� ����������� � ����� ������ � ��� � ��� � ����� � ������� ������� � � ������� ������� � � ������� ������� � � ������� ������� � ������� ������� � ������������������ � � � � � � � � � � � � � � � � � � ���������� �� ��������������� �� �� �� �� �� �� �� �� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����������������� ����������������� ���������� ���������� ���������� ���������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����������������� ����� ����������������� ����������������� ����������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� �� �������������� ���������� ��������� ������� �� ��� ��� ��� �������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� �� �� �� �� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� �� �� �� �� �������������� �� �� �� �� ��������������������������������������������������� ��������������������������������������� ��������������������������������������������������� ��������������������������������������������������������� ��������������������������������������������������������� ��������������������������������������� ������ ��������� ��������� ������ ������ ��� ��� ��� ��� ��� ������ ����� ������ ������ ��� � ����� ����� ��������� ������ ��������������������������������������������������������������������������������� ��� ��� ��� ��� ��� ��� ����� ����� ��������� ������� ������ �������� ������������� �������������� �������������� ������ ���� ������� ��������������� ������������ ����������� �������� ���������� ������������������� ��� ��� ��� ��� ��� ��� �� �� �� �������������� �� �� �� ����������������������� ������������������������������ ���������

3-9 3 HARDWARE 3.2 WIRING 3 3.2.2 DIELECTRIC STRENGTH The dielectric strength of the UR-series module hardware is shown in the following table: Filter networks and transient protection clamps are used in the hardware to prevent damage caused by high peak voltage transients, radio frequency interference (RFI), and electromagnetic interference (EMI). These protective components can be damaged by application of the ANSI/IEEE C37.90 specified test voltage for a period longer than the specified one min- ute. 3.2.3 CONTROL POWER Control power supplied to the relay must be connected to the matching power supply range of the relay. If voltage is applied to the wrong terminals, damage can occur. The L30 relay, like almost all electronic relays, contains electrolytic capacitors. These capacitors are well-known to deteriorate over time if voltage is not applied periodically. Deterioration can be avoided by powering up the relay at least once a year. The power supply module can be ordered for two possible voltage ranges, and the UR can be ordered with or without a redundant power supply module option. Each range has a dedicated input connection for proper operation. The ranges are as shown below (see the Technical specifications section of chapter 2 for additional details): • Low (LO) range: 24 to 48 V (DC only) nominal. • High (HI) range: 125 to 250 V nominal. The power supply module provides power to the relay and supplies power for dry contact input connections. The power supply module provides 48 V DC power for dry contact input connections and a critical failure relay (see the Typical wiring diagram earlier). The critical failure relay is a form-C device that will be energized once control power is applied and the relay has successfully booted up with no critical self-test failures. If on-going self-test diagnostic checks detect a critical failure (see the Self-test errors section in chapter 7) or control power is lost, the relay will de-energize. For high reliability systems, the L30 has a redundant option in which two L30 power supplies are placed in parallel on the bus. If one of the power supplies become faulted, the second power supply will assume the full load of the relay without any interruptions. Each power supply has a green LED on the front of the module to indicate it is functional. The critical fail relay of the module will also indicate a faulted power supply. An LED on the front of the control power module shows the status of the power supply: Table 3–1: DIELECTRIC STRENGTH OF UR-SERIES MODULE HARDWARE MODULE TYPE MODULE FUNCTION TERMINALS DIELECTRIC STRENGTH (AC) FROM TO 1 Power supply High (+); Low (+); (–) Chassis 2000 V AC for 1 minute 1 Power supply 48 V DC (+) and (–) Chassis 2000 V AC for 1 minute 1 Power supply Relay terminals Chassis 2000 V AC for 1 minute 2 Reserved N/A N/A N/A 3 Reserved N/A N/A N/A 4 Reserved N/A N/A N/A 5 Analog inputs/outputs All except 8b Chassis < 50 V DC 6 Digital inputs/outputs All Chassis 2000 V AC for 1 minute 7 G.703 All except 2b, 3a, 7b, 8a Chassis 2000 V AC for 1 minute RS422 All except 6a, 7b, 8a Chassis < 50 V DC 8 CT/VT All Chassis 2000 V AC for 1 minute 9 CPU All Chassis 2000 V AC for 1 minute LED INDICATION POWER SUPPLY CONTINUOUS ON OK ON / OFF CYCLING Failure OFF Failure ������

GE Multilin 3.2 WIRING 3 HARDWARE 3 Figure 3–11: CONTROL POWER CONNECTION 3.2.4 CT AND VT MODULES A CT/VT module may have voltage or current inputs on channels 1 through 4 inclusive, or channels 5 through 8 inclusive. Channels 1 and 5 are intended for connection to phase A, and are labeled as such in the relay. Likewise, channels 2 and 6 are intended for connection to phase B, and channels 3 and 7 are intended for connection to phase C. Channels 4 and 8 are intended for connection to a single-phase source. For voltage inputs, these channel are labelled as auxiliary voltage (VX). For current inputs, these channels are intended for connection to a CT between system neutral and ground, and are labelled as ground current (IG). Verify that the connection made to the relay terminals for nominal current of 1 A or 5 A matches the secondary rating of the connected CTs. Unmatched CTs can result in equipment damage or inade- quate protection. To connect the module, size 12 American Wire Gauge (AWG) is commonly used; the maximum size is 10 AWG. CT/VT modules may be ordered with a standard ground current input that is the same as the phase current input. Each AC current input has an isolating transformer and an automatic shorting mechanism that shorts the input when the module is withdrawn from the chassis. There are no internal ground connections on the current inputs. Current transformers with 1 to 50000 A primaries and 1 A or 5 A secondaries can be used. The above modules have enhanced diagnostics, when ordered as such, that can automatically detect CT/VT hardware fail- ure and take the relay out of service. CT connections for both ABC and ACB phase rotations are identical as shown in the Typical wiring diagram. The exact placement of a zero-sequence core balance CT to detect ground fault current is shown as follows. Twisted-pair cabling on the zero-sequence CT is recommended. �������� ����� ����������������� ������������������ ������������������ ��������������� ���������������������� ��������������� ���������� ���������� ��������� ����������������� ������ ����� � � ��� � ���� ��� ��� ��� ��� ��� ������� ����� ������������ � � �������� ��������������� �������� ��� ������

3-11 3 HARDWARE 3.2 WIRING 3 Figure 3–12: ZERO-SEQUENCE CORE BALANCE CT INSTALLATION The phase voltage channels are used for most metering and protection purposes. The auxiliary voltage channel is used as input for the synchrocheck and volts-per-hertz features. Substitute the tilde “~” symbol with the slot position of the module in the following figure. Figure 3–13: CT/VT MODULE WIRING Ground connection to neutral must be on the source side UNSHIELDED CABLE LOAD A B C N G Ground outside CT Source LOAD SHIELDED CABLE 996630A5 A B C Source To ground; must be on load side Stress cone shields NOTE ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 1a 1b 1c 2a 2b 2c 3a 4a 5a 6a 7a 8a 3b 4b 5c 6c 7c 8c 3c 4c Current inputs 8F, 8G, 8L, and 8M modules (4 CTs and 4 VTs) Voltage inputs VA VB VC VX VA VB VC VX IA IC IB IG IA5 IC5 IB5 IG5 IA1 IC1 IB1 IG1 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 1a 5a 1b 5b 1c 5c 2a 6a 2b 6b 2c 6c 3a 7a 4a 8a 3b 7b 4b 8b 3c 7c 4c 8c Current inputs 842766A3.CDR IA IA IC IC IB IB IG IG IA5 IA5 IC5 IC5 IB5 IB5 IG5 IG5 IA1 IA1 IC1 IC1 IB1 IB1 IG1 IG1 8H, 8J, 8N, and 8R modules (8 CTs)

GE Multilin 3.2 WIRING 3 HARDWARE 3 3.2.5 PROCESS BUS MODULES The L30 can be ordered with a process bus interface module. This module is designed to interface with the GE Multilin HardFiber system, allowing bi-directional IEC 61850 fiber optic communications with up to eight HardFiber merging units, known as Bricks. The HardFiber system has been designed to integrate seamlessly with the existing UR-series applica- tions, including protection functions, FlexLogic™, metering, and communications. The IEC 61850 process bus system offers the following benefits. • Drastically reduces labor associated with design, installation, and testing of protection and control applications using the L30 by reducing the number of individual copper terminations. • Integrates seamlessly with existing L30 applications, since the IEC 61850 process bus interface module replaces the traditional CT/VT modules. • Communicates using open standard IEC 61850 messaging. For additional details on the HardFiber system, refer to GE publication GEK-113500: HardFiber System Instruction Manual. 3.2.6 CONTACT INPUTS AND OUTPUTS Every contact input/output module has 24 terminal connections. They are arranged as three terminals per row, with eight rows in total. A given row of three terminals may be used for the outputs of one relay. For example, for form-C relay outputs, the terminals connect to the normally open (NO), normally closed (NC), and common contacts of the relay. For a form-A output, there are options of using current or voltage detection for feature supervision, depending on the module ordered. The terminal configuration for contact inputs is different for the two applications. The contact inputs are grouped with a common return. The L30 has two versions of grouping: four inputs per common return and two inputs per common return. When a contact input/output module is ordered, four inputs per common is used. If the inputs must be isolated per row, then two inputs per common return should be selected (4D module). The tables and diagrams on the following pages illustrate the module types (6A, etc.) and contact arrangements that may be ordered for the relay. Since an entire row is used for a single contact output, the name is assigned using the module slot position and row number. However, since there are two contact inputs per row, these names are assigned by module slot position, row number, and column position. Some form-A / solid-state relay outputs include circuits to monitor the DC voltage across the output contact when it is open, and the DC current through the output contact when it is closed. Each of the monitors contains a level detector whose out- put is set to logic “On = 1” when the current in the circuit is above the threshold setting. The voltage monitor is set to “On = 1” when there is a voltage across open contact (the detector allows a current of about 1 to 2.5 mA), and the current monitor is set to “On = 1” when the current flowing through the closed contact exceeds about 80 to 100 mA. The voltage monitor is intended to check the health of the overall trip circuit, and the current monitor can be used to seal-in the output contact until an external contact has interrupted current flow. If enabled, the current monitoring can be used as a seal-in signal to ensure that the form-A contact does not attempt to break the energized inductive coil circuit and weld the output contacts. Block diagrams are shown as follows for form-A and solid-state relay outputs with optional voltage monitor, optional current monitor, and with no monitoring. The actual values shown for contact output 1 are the same for all contact outputs. Form-A contact output with or without a current or voltage monitoring option is not polarity sensitive. The polarity shown in the figure is required for solid-state contact output connection.

3-13 3 HARDWARE 3.2 WIRING 3 Figure 3–14: FORM-A AND SOLID-STATE CONTACT OUTPUTS WITH VOLTAGE AND CURRENT MONITORING The operation of voltage and current monitors is reflected with the corresponding FlexLogic™ operands (CONT OP # VON, CONT OP # VOFF, and CONT OP # ION) which can be used in protection, control, and alarm logic. The typical application of the voltage monitor is breaker trip circuit integrity monitoring; a typical application of the current monitor is seal-in of the control command. Refer to the Digital elements section of chapter 5 for an example of how form-A and solid-state relay contacts can be applied for breaker trip circuit integrity monitoring. Consider relay contacts unsafe to touch when the unit is energized. USE OF FORM-A AND SOLID-STATE RELAY OUTPUTS IN HIGH IMPEDANCE CIRCUITS For form-A and solid-state relay output contacts internally equipped with a voltage measuring circuit across the con- tact, the circuit has an impedance that can cause a problem when used in conjunction with external high input impedance monitoring equipment such as modern relay test set trigger circuits. These monitoring circuits may con- tinue to read the form-A contact as being closed after it has closed and subsequently opened, when measured as an impedance. The solution to this problem is to use the voltage measuring trigger input of the relay test set, and connect the form- A contact through a voltage-dropping resistor to a DC voltage source. If the 48 V DC output of the power supply is used as a source, a 500 Ω, 10 W resistor is appropriate. In this configuration, the voltage across either the form-A contact or the resistor can be used to monitor the state of the output. Wherever a tilde “~” symbol appears, substitute with the slot position of the module; wherever a number sign “#” appears, substitute the contact number When current monitoring is used to seal-in the form-A and solid-state relay contact outputs, the Flex- Logic™ operand driving the contact output should be given a reset delay of 10 ms to prevent damage of the output contact (in situations when the element initiating the contact output is bouncing, at val- ues in the region of the pickup value). ���� � ��� ��� ��� � ������������ � � � � � ������������������������ ���������������������� ����������������������� ���� � � ����������������������������������� ���� � � ������������������������ ����������������������� ����������������������� ������������������������������������ ��������������������������������� ���� � ���� ���������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� � ������� NOTE NOTE ������

GE Multilin 3.2 WIRING 3 HARDWARE 3 Table 3–2: CONTACT INPUT AND OUTPUT MODULE ASSIGNMENTS ~6A MODULE ~6B MODULE ~6C MODULE ~6D MODULE TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT TERMINAL ASSIGNMENT OUTPUT ~1 Form-A ~1 Form-A ~1 Form-C ~1a, ~1c 2 Inputs ~2 Form-A ~2 Form-A ~2 Form-C ~2a, ~2c 2 Inputs ~3 Form-C ~3 Form-C ~3 Form-C ~3a, ~3c 2 Inputs ~4 Form-C ~4 Form-C ~4 Form-C ~4a, ~4c 2 Inputs ~5a, ~5c 2 Inputs ~5 Form-C ~5 Form-C ~5a, ~5c 2 Inputs ~6a, ~6c 2 Inputs ~6 Form-C ~6 Form-C ~6a, ~6c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7 Form-C ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8 Form-C ~8a, ~8c 2 Inputs ~6E MODULE ~6F MODULE ~6G MODULE ~6H MODULE TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT ~1 Form-C ~1 Fast Form-C ~1 Form-A ~1 Form-A ~2 Form-C ~2 Fast Form-C ~2 Form-A ~2 Form-A ~3 Form-C ~3 Fast Form-C ~3 Form-A ~3 Form-A ~4 Form-C ~4 Fast Form-C ~4 Form-A ~4 Form-A ~5a, ~5c 2 Inputs ~5 Fast Form-C ~5a, ~5c 2 Inputs ~5 Form-A ~6a, ~6c 2 Inputs ~6 Fast Form-C ~6a, ~6c 2 Inputs ~6 Form-A ~7a, ~7c 2 Inputs ~7 Fast Form-C ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8 Fast Form-C ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~6K MODULE ~6L MODULE ~6M MODULE ~6N MODULE TERMINAL ASSIGNMENT OUTPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT ~1 Form-C ~1 Form-A ~1 Form-A ~1 Form-A ~2 Form-C ~2 Form-A ~2 Form-A ~2 Form-A ~3 Form-C ~3 Form-C ~3 Form-C ~3 Form-A ~4 Form-C ~4 Form-C ~4 Form-C ~4 Form-A ~5 Fast Form-C ~5a, ~5c 2 Inputs ~5 Form-C ~5a, ~5c 2 Inputs ~6 Fast Form-C ~6a, ~6c 2 Inputs ~6 Form-C ~6a, ~6c 2 Inputs ~7 Fast Form-C ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8 Fast Form-C ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~6P MODULE ~6R MODULE ~6S MODULE ~6T MODULE TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT ~1 Form-A ~1 Form-A ~1 Form-A ~1 Form-A ~2 Form-A ~2 Form-A ~2 Form-A ~2 Form-A ~3 Form-A ~3 Form-C ~3 Form-C ~3 Form-A ~4 Form-A ~4 Form-C ~4 Form-C ~4 Form-A ~5 Form-A ~5a, ~5c 2 Inputs ~5 Form-C ~5a, ~5c 2 Inputs ~6 Form-A ~6a, ~6c 2 Inputs ~6 Form-C ~6a, ~6c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs

3-15 3 HARDWARE 3.2 WIRING 3 ~6U MODULE ~6V MODULE ~67 MODULE ~4A MODULE TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT OR INPUT TERMINAL ASSIGNMENT OUTPUT TERMINAL ASSIGNMENT OUTPUT ~1 Form-A ~1 Form-A ~1 Form-A ~1 Not Used ~2 Form-A ~2 Form-A ~2 Form-A ~2 Solid-State ~3 Form-A ~3 Form-C ~3 Form-A ~3 Not Used ~4 Form-A ~4 2 Outputs ~4 Form-A ~4 Solid-State ~5 Form-A ~5a, ~5c 2 Inputs ~5 Form-A ~5 Not Used ~6 Form-A ~6a, ~6c 2 Inputs ~6 Form-A ~6 Solid-State ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7 Form-A ~7 Not Used ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8 Form-A ~8 Solid-State ~4B MODULE ~4C MODULE ~4D MODULE ~4L MODULE TERMINAL ASSIGNMENT OUTPUT TERMINAL ASSIGNMENT OUTPUT TERMINAL ASSIGNMENT OUTPUT TERMINAL ASSIGNMENT OUTPUT ~1 Not Used ~1 Not Used ~1a, ~1c 2 Inputs ~1 2 Outputs ~2 Solid-State ~2 Solid-State ~2a, ~2c 2 Inputs ~2 2 Outputs ~3 Not Used ~3 Not Used ~3a, ~3c 2 Inputs ~3 2 Outputs ~4 Solid-State ~4 Solid-State ~4a, ~4c 2 Inputs ~4 2 Outputs ~5 Not Used ~5 Not Used ~5a, ~5c 2 Inputs ~5 2 Outputs ~6 Solid-State ~6 Solid-State ~6a, ~6c 2 Inputs ~6 2 Outputs ~7 Not Used ~7 Not Used ~7a, ~7c 2 Inputs ~7 2 Outputs ~8 Solid-State ~8 Solid-State ~8a, ~8c 2 Inputs ~8 Not Used

GE Multilin 3.2 WIRING 3 HARDWARE 3 Figure 3–15: CONTACT INPUT AND OUTPUT MODULE WIRING (1 of 2) ������������

3-17 3 HARDWARE 3.2 WIRING 3 Figure 3–16: CONTACT INPUT AND OUTPUT MODULE WIRING (2 of 2) For proper functionality, observe the polarity shown in the figures for all contact input and output con- nections. ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � � � �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ������������������ ������������������ ������������������ ������������������ �������������� ����� �� �� �� ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � � � �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ������������������ ������������������ ������������������ ������������������ �������������� ����� �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � � � �� �� �� ������������������ ������������������ ������������������ ������������������ �������������� ����� �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � � � �� �� �� ������������������ ������������������ ������������������ ������������������ �������������� ����� �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � �� �� �� ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ �������������� �������������� ����� �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � �� �� �� ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ �������������� �������������� ����� �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � �� �� �� ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ �������������� �������������� ����� �� �� �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � � �� �� �� ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ �������������� �������������� ����� �� �� �� ������������ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � ����������� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� � � � �� �� �� �� ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ ������������������ �������������� �������������� ����� �� �� �� � �� � � � � ������

GE Multilin 3.2 WIRING 3 HARDWARE 3 CONTACT INPUTS: A dry contact has one side connected to terminal B3b. This is the positive 48 V DC voltage rail supplied by the power sup- ply module. The other side of the dry contact is connected to the required contact input terminal. Each contact input group has its own common (negative) terminal which must be connected to the DC negative terminal (B3a) of the power supply module. When a dry contact closes, a current of 1 to 3 mA will flow through the associated circuit. A wet contact has one side connected to the positive terminal of an external DC power supply. The other side of this contact is connected to the required contact input terminal. If a wet contact is used, then the negative side of the external source must be connected to the relay common (negative) terminal of each contact group. The maximum external source voltage for this arrangement is 300 V DC. The voltage threshold at which each group of four contact inputs will detect a closed contact input is programmable as 17 V DC for 24 V sources, 33 V DC for 48 V sources, 84 V DC for 110 to 125 V sources, and 166 V DC for 250 V sources. Figure 3–17: DRY AND WET CONTACT INPUT CONNECTIONS Wherever a tilde “~” symbol appears, substitute with the slot position of the module. There is no provision in the relay to detect a DC ground fault on 48 V DC control power external output. We recommend using an external DC supply. ������������ ����������� ������� ����� ��������������� ��������������� ��������������� ����� ��������������� ��� ������ ��� ��� ��� ��� ��� ��������������� ��������������� ��������������� ����� ��������������� ��� ������ ��� ��� ��� ��� ��� ������������� ����� ��� ������ ��� ��� ��� ��� ���������������� ��� �������������� ��� ��� ��� ��� ��� ��� ������������������� ���������������������� ��������������������������� ���������������������� ��������������������������� NOTE

3-19 3 HARDWARE 3.2 WIRING 3 USE OF CONTACT INPUTS WITH AUTO-BURNISHING: The contact inputs sense a change of the state of the external device contact based on the measured current. When exter- nal devices are located in a harsh industrial environment (either outdoor or indoor), their contacts can be exposed to vari- ous types of contamination. Normally, there is a thin film of insulating sulfidation, oxidation, or contaminates on the surface of the contacts, sometimes making it difficult or impossible to detect a change of the state. This film must be removed to establish circuit continuity – an impulse of higher than normal current can accomplish this. The contact inputs with auto-burnish create a high current impulse when the threshold is reached to burn off this oxidation layer as a maintenance to the contacts. Afterwards the contact input current is reduced to a steady-state current. The impulse will have a 5 second delay after a contact input changes state. Figure 3–18: CURRENT THROUGH CONTACT INPUTS WITH AUTO-BURNISHING Regular contact inputs limit current to less than 3 mA to reduce station battery burden. In contrast, contact inputs with auto- burnishing allow currents up to 50 to 70 mA at the first instance when the change of state was sensed. Then, within 25 to 50 ms, this current is slowly reduced to 3 mA as indicated above. The 50 to 70 mA peak current burns any film on the con- tacts, allowing for proper sensing of state changes. If the external device contact is bouncing, the auto-burnishing starts when external device contact bouncing is over. Another important difference between the auto-burnishing input module and the regular input modules is that only two con- tact inputs have common ground, as opposed to four contact inputs sharing one common ground (refer to the Contact Input and Output Module Wiring diagrams). This is beneficial when connecting contact inputs to separate voltage sources. Con- sequently, the threshold voltage setting is also defined per group of two contact inputs. The auto-burnish feature can be disabled or enabled using the DIP switches found on each daughter card. There is a DIP switch for each contact, for a total of 16 inputs. Figure 3–19: AUTO-BURNISH DIP SWITCHES The auto-burnish circuitry has an internal fuse for safety purposes. During regular maintenance, the auto-burnish functionality can be checked using an oscilloscope. 842749A1.CDR 50 to 70 mA 3 mA 25 to 50 ms current time CONTACT INPUT 1 AUTO-BURNISH = OFF = OFF CONTACT INPUT 2 AUTO-BURNISH CONTACT INPUT 1 AUTO-BURNISH CONTACT INPUT 2 AUTO-BURNISH = ON = OFF CONTACT INPUT 1 AUTO-BURNISH CONTACT INPUT 2 AUTO-BURNISH = OFF = ON CONTACT INPUT 1 AUTO-BURNISH CONTACT INPUT 2 AUTO-BURNISH = ON = ON 842751A1.CDR NOTE

GE Multilin 3.2 WIRING 3 HARDWARE 3 3.2.7 TRANSDUCER INPUTS AND OUTPUTS Transducer input modules can receive input signals from external dcmA output transducers (dcmA In) or resistance tem- perature detectors (RTDs). Hardware and software are provided to receive signals from these external transducers and convert these signals into a digital format for use as required. Transducer output modules provide DC current outputs in several standard dcmA ranges. Software is provided to configure virtually any analog quantity used in the relay to drive the analog outputs. Every transducer input/output module has a total of 24 terminal connections. These connections are arranged as three ter- minals per row with a total of eight rows. A given row may be used for either inputs or outputs, with terminals in column "a" having positive polarity and terminals in column "c" having negative polarity. Since an entire row is used for a single input/ output channel, the name of the channel is assigned using the module slot position and row number. Each module also requires that a connection from an external ground bus be made to terminal 8b. The current outputs require a twisted-pair shielded cable, where the shield is grounded at one end only. The following figure illustrates the trans- ducer module types (5A, 5C, 5D, 5E, and 5F) and channel arrangements that may be ordered for the relay. Wherever a tilde “~” symbol appears, substitute with the slot position of the module. Figure 3–20: TRANSDUCER INPUT/OUTPUT MODULE WIRING The following figure show how to connect RTDs. NOTE ������������

3-21 3 HARDWARE 3.2 WIRING 3 Figure 3–21: RTD CONNECTIONS ������������������������� ������������� ������������������������������ ������������������������� ������������������������������������ ����������������������������� ��� ������������ ������������� ��� ��� ������� ��� ����� �� ���� �� �� ��� ��� ��� ��� ��� ��� ������ ���� ���� ��� ���

GE Multilin 3.2 WIRING 3 HARDWARE 3 3.2.8 RS232 FACEPLATE PORT A 9-pin RS232C serial port is located on the L30 faceplate for programming with a personal computer. All that is required to use this interface is a personal computer running the EnerVista UR Setup software provided with the relay. Cabling for the RS232 port is shown in the following figure for both 9-pin and 25-pin connectors. The baud rate for this port is fixed at 19200 bps. Figure 3–22: RS232 FACEPLATE PORT CONNECTION 3.2.9 CPU COMMUNICATION PORTS a) OVERVIEW In addition to the faceplate RS232 port, the L30 provides two additional communication ports or a managed six-port Ether- net switch, depending on the installed CPU module. In the following table, multiple Ethernet ports are supported, but only one can be used at a time. For example, the 10Base-F (normal) port and 10Base-T (alternate) port are supported in the 9G module, but only one can be used at a time. The CPU modules do not require a surge ground connection. Table 3–3: CPU MODULE COMMUNICATIONS (APPLICABLE MODULE DEPENDS ON ORDER CODE) CPU TYPE COM1 COM2 9E RS485 RS485 9G 10Base-F or 10Base-T (obsolete) RS485 9H Redundant 10Base-F or 10Base-T (obsolete) RS485 9J 100Base-FX or 10/100Base-T RS485 9K Redundant 100Base-FX or 10/100Base-T RS485 9L 100Base-FX (obsolete) RS485 9M Redundant 100Base-FX (obsolete) RS485 9N 10/100Base-T RS485 9S Six-port managed Ethernet switch RS485 NOTE NOTE

3-23 3 HARDWARE 3.2 WIRING 3 For the 9G/9H CPU, the 10Base-T port can only be used when the CH1 10Base-F fiber has been removed. The 10Base-T Ethernet cable and the CH1 10Base-F fiber cable cannot both be installed at the same time. For the 9J/9K CPU, the 10/100Base-T port has the lowest priority and is only active if both CH1 and CH2 fiber links are down. Installation of the 10/100Base-T Ethernet cable at the same time as the CH1 and/or CH2 100Base-F fiber cables does not affect the communication over the CH1 or CH2 fiber ports. Figure 3–23: CPU MODULE COMMUNICATIONS WIRING (APPLICABLE MODULE DEPENDS ON ORDER CODE) b) RS485 PORTS RS485 data transmission and reception are accomplished over a single twisted pair with transmit and receive data alternat- ing over the same two wires. Through the use of these ports, continuous monitoring and control from a remote computer, SCADA system or PLC is possible. To minimize errors from noise, the use of shielded twisted pair wire is recommended. Correct polarity must also be observed. For instance, the relays must be connected with all RS485 “+” terminals connected together, and all RS485 “–” terminals connected together. Though data is transmitted over a two-wire twisted pair, all RS485 devices require a shared NOTE ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� �� ����� ���� ������ � � ��� ��� ��� ����� ���� ��������� ������ ������ �������������� ���������������������� ������������ ��� �� ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� �������������� ���������������������� ��������� ������ ������ ����� ���� ������ ��������� ���� ��������� ��������� �������� ��� ��� ��� ��� ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� �� �������������� �������� ������������� �������� ����������� ��������� ������ ������ ����� ���� ��������� ������ ��������� ���� ���������� ���������� ������������ ��� ��� ��� ��� ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� �� �������������� �������� ������������� �������� ����������� ��������� ������ ������ ����� ���� ��������� ������ ���� ��������� �������� ��� ��� ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� �� ����� ���� ���������������������� �������������� �������� ����������� ��������� ������ ������ ��������� ������ ���� ���������� ��� ��� ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� �� ����� ���� ���������������������� �������������� �������� ����������� ��������� ������ ������ ������������ ��������� �������������� ��������� ������ ������ ������ ������������ ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� �������� ������������� ����� ���� ���� �� ���������� ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� ����� ���� �� ���� ������ �������������� �������� ����������� ��������� ������ ������ ������ ��������� ���� ���������� ��������� ������ � � � � ��� ��� ��� ��� ��� ��� ������ ����� ��� �� �������������� ���������������������� �������������������� ��������� ������ ������ ����� ����

GE Multilin 3.2 WIRING 3 HARDWARE 3 reference, or common voltage. This common voltage is implied to be a power supply common. Some systems allow the shield (drain wire) to be used as common wire and to connect directly to the L30 COM terminal (#3); others function cor- rectly only if the common wire is connected to the L30 COM terminal, but insulated from the shield. To avoid loop currents, the shield should be grounded at only one point. If other system considerations require the shield to be grounded at more than one point, install resistors (typically 100 ohms) between the shield and ground at each grounding point. Each relay should also be daisy-chained to the next one in the link. A maximum of 32 relays can be connected in this manner without exceeding driver capability. For larger systems, additional serial channels must be added. It is also possible to use commercially available repeaters to have more than 32 relays on a single channel. Star or stub connections should be avoided entirely. Lightning strikes and ground surge currents can cause large momentary voltage differences between remote ends of the communication link. For this reason, surge protection devices are internally provided at both communication ports. An iso- lated power supply with an optocoupled data interface also acts to reduce noise coupling. To ensure maximum reliability, all equipment should have similar transient protection devices installed. Both ends of the RS485 circuit should also be terminated with an impedance as shown below. Figure 3–24: RS485 SERIAL CONNECTION ���������������������� ����������� ���� ���������������� ������ ������������ ����������� � ���� � � ����������������������������� � ���������������������������������������� ������������ ������� ������� ����������� ����� ����� ������������������������������ ������������������� ��������������������� ���� ����������� ����������������� ����������������� �������� � ���� � ������� ������� ����������� ������� ������� ����������� ���

3-25 3 HARDWARE 3.2 WIRING 3 c) 10BASE-FL AND 100BASE-FX FIBER OPTIC PORTS ENSURE THE DUST COVERS ARE INSTALLED WHEN THE FIBER IS NOT IN USE. DIRTY OR SCRATCHED CONNECTORS CAN LEAD TO HIGH LOSSES ON A FIBER LINK. The fiber optic communication ports allow for fast and efficient communications between relays at 10 Mbps or 100 Mbps. Optical fiber may be connected to the relay supporting a wavelength of 820 nm in multi-mode or 1310 nm in multi-mode and single-mode. The 10 Mbps rate is available for CPU modules 9G and 9H; 100Mbps is available for modules 9J, 9K, and 9N. The 9H and 9K modules have a second pair of identical optical fiber transmitter and receiver for redundancy. 3.2.10 IRIG-B IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices. The IRIG-B code allows time accuracies of up to 100 ns. Using the IRIG-B input, the L30 operates an internal oscillator with 1 µs resolution and accuracy. The IRIG time code formats are serial, width-modulated codes which can be either DC level NOTE

GE Multilin 3.2 WIRING 3 HARDWARE 3 shifted or amplitude modulated (AM). Third party equipment is available for generating the IRIG-B signal; this equipment may use a GPS satellite system to obtain the time reference so that devices at different geographic locations can also be synchronized. Figure 3–25: OPTIONS FOR IRIG-B CONNECTION ���������������� �������� �������� ��������������������� �������������������� �������������� ���������� �� � ������������ ������ ������������������� ������������ ������������������� ������������������� �� ���������� ��������� �������� ���������������� ��������������� ���������������� �������� �������� ������������������ �������������������� �������������� ���������� �� � ������ ������������������� ������������ ������������������� ������������������� �� ���������� ��������� �������� ���������������� ���������������

3-27 3 HARDWARE 3.2 WIRING 3 The IRIG-B repeater provides an amplified DC-shift IRIG-B signal to other equipment. By using one IRIG-B serial connec- tion, several UR-series relays can be synchronized. The IRIG-B repeater has a bypass function to maintain the time signal even when a relay in the series is powered down. Figure 3–26: IRIG-B REPEATER Using an amplitude modulated receiver will cause errors up to 1 ms in event time-stamping. When IRIG-B is used as the time synchronization source for synchrophasors, the DC level shifted option must be used in order to achieve the 1% Total Vector Error specified by the standard. If amplitude modulated IRIG-B is used, it results in a 20 to 25 degree error in the synchrophasor angle measurement. The IEEE 1588 Precision Time Protocol can also be used to achieve accurate time synchronization for synchrophasor calculation.sing an ampli- tude modulated receiver will also cause errors of up to 1 ms in metered synchrophasor values. ������������ ���������������� ����������������� ������ �������� �������� ����������� ��������� ������� ������������������������� ������ �������� NOTE NOTE

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 3.3PILOT CHANNEL COMMUNICATIONS 3.3.1 DESCRIPTION A special inter-relay communications module is available for the L30. This module is plugged into slot “W” in horizontally mounted units and slot “R” in vertically mounted units. Inter-relay channel communications is not the same as 10/100Base- F interface communications (available as an option with the CPU module). Channel communication is used for sharing data among relays. The inter-relay communications modules are available with several interfaces as shown in the table below. All of the fiber modules use ST type connectors. For two-terminal applications, each L30 relay requires at least one com- munications channel. Table 3–4: CHANNEL COMMUNICATION OPTIONS MODULE SPECIFICATION 2A C37.94SM, 1300 nm, single-mode, ELED, 1 channel single-mode 2B C37.94SM, 1300 nm, single-mode, ELED, 2 channel single-mode 2E Bi-phase, 1 channel 2F Bi-phase, 2 channel 2G IEEE C37.94, 820 nm, 128 kbps, multi-mode, LED, 1 channel 2H IEEE C37.94, 820 nm, 128 kbps, multi-mode, LED, 2 channels 2S Managed Ethernet switch with high voltage power supply 2T Managed Ethernet switch with low voltage power supply 72 1550 nm, single-mode, laser, 1 channel 73 1550 nm, single-mode, laser, 2 channels 74 Channel 1 - RS422; channel 2 - 1550 nm, single-mode, laser 75 Channel 1 - G.703; channel 2 - 1550 nm, single-mode, laser 76 IEEE C37.94, 820 nm, 64 kbps, multi-mode, LED, 1 channel 77 IEEE C37.94, 820 nm, 64 kbps, multi-mode, LED, 2 channels 7A 820 nm, multi-mode, LED, 1 channel 7B 1300 nm, multi-mode, LED, 1 channel 7C 1300 nm, single-mode, ELED, 1 channel 7D 1300 nm, single-mode, laser, 1 channel 7E Channel 1: G.703, Channel 2: 820 nm, multi-mode 7F Channel 1: G.703, Channel 2: 1300 nm, multi-mode 7G Channel 1: G.703, Channel 2: 1300 nm, single-mode ELED 7H 820 nm, multi-mode, LED, 2 channels 7I 1300 nm, multi-mode, LED, 2 channels 7J 1300 nm, single-mode, ELED, 2 channels 7K 1300 nm, single-mode, LASER, 2 channels 7L Channel 1: RS422, channel: 820 nm, multi-mode, LED 7M Channel 1: RS422, channel 2: 1300 nm, multi-mode, LED 7N Channel 1: RS422, channel 2: 1300 nm, single-mode, ELED 7P Channel 1: RS422, channel 2: 1300 nm, single-mode, laser 7Q Channel 1: G.703, channel 2: 1300 nm, single-mode, laser 7R G.703, 1 channel 7S G.703, 2 channels 7T RS422, 1 channel 7V RS422, 2 channels, 2 clock inputs 7W RS422, 2 channels

3-29 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 3 The current differential function must be “Enabled” for the communications module to properly operate. Refer to SETTINGS  GROUPED ELEMENTS  LINE DIFFERENTIAL  CURRENT DIFFERENTIAL menu. The fiber optic modules (7A to 7W) are designed for back-to-back connections of UR-series relays only. For connections to higher-order systems, use the 72 to 77 modules or the 2A and 2B modules. OBSERVING ANY FIBER TRANSMITTER OUTPUT MAY CAUSE INJURY TO THE EYE. 3.3.2 FIBER: LED AND ELED TRANSMITTERS The following figure shows the configuration for the 7A, 7B, 7C, 7H, 7I, and 7J fiber-only modules. Figure 3–27: LED AND ELED FIBER MODULES 3.3.3 FIBER-LASER TRANSMITTERS The following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser module. Figure 3–28: LASER FIBER MODULES Observing any fiber transmitter output can injure the eye. NOTE NOTE ������� ����������� ���������� ����������� ���������� ��������� ���������� ��� ��� ��� ��� ��� ��� ������������ ��������� ���������� ��� ��� ��� ��� ��� ��� ������������ ��������� ������� ��������� ������� �������

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 When using a laser Interface, attenuators may be necessary to ensure that you do not exceed the maximum optical input power to the receiver. ������

3-31 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 3 3.3.4 G.703 INTERFACE a) DESCRIPTION The following figure shows the 64K ITU G.703 co-directional interface configuration. The G.703 module is fixed at 64 kbps. The SETTINGS ð PRODUCT SETUP ðò DIRECT I/O ðò DIRECT I/O DATA RATE setting is not applicable to this module. AWG 24 twisted shielded pair is recommended for external connections, with the shield grounded only at one end. Con- necting the shield to pin X1a or X6a grounds the shield since these pins are internally connected to ground. Thus, if pin X1a or X6a is used to ground the shield at one end, do not ground the shield at the other end. This interface module is protected by surge suppression devices. Figure 3–29: G.703 INTERFACE CONFIGURATION The following figure shows the typical pin interconnection between two G.703 interfaces. For the actual physical arrange- ment of these pins, see the Rear terminal assignments section earlier in this chapter. All pin interconnections are to be maintained for a connection to a multiplexer. Figure 3–30: TYPICAL PIN INTERCONNECTION BETWEEN TWO G.703 INTERFACES Pin nomenclature may differ from one manufacturer to another. Therefore, it is not uncommon to see pinouts num- bered TxA, TxB, RxA and RxB. In such cases, it can be assumed that “A” is equivalent to “+” and “B” is equivalent to “–”. b) G.703 SELECTION SWITCH PROCEDURES 1. With the power to the relay off, remove the G.703 module (7R or 7S). The ejector/inserter clips located at the top and at the bottom of each module, must be pulled simultaneously in order to release the module for removal. The original location of the module should be recorded to help ensure that the same or replacement module is inserted into the cor- rect slot. 2. Remove the module cover screw. 3. Remove the top cover by sliding it towards the rear and then lift it upwards. 4. Set the timing selection switches (channel 1, channel 2) to the desired timing modes. 5. Replace the top cover and the cover screw. NOTE ������������ ��� ��� �� ���� ���� ������ ���� ������ ���� ���� ���� ���� ���� �������������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����� ��������� ����� ��������� ����� ����� ��� ��� �� ���� ���� ������ ���� ������ ���� ���� ���� ���� ���� �������������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����� ��������� ����� ��������� ����� ����� ������������ ��� ��� �� ���� ���� ������ ���� ������ ���� ���� ���� ���� ���� �������������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����� ��������� ����� ��������� ����� ����� NOTE

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 6. Re-insert the G.703 module. Take care to ensure that the correct module type is inserted into the correct slot position. The ejector/inserter clips located at the top and at the bottom of each module must be in the disengaged position as the module is smoothly inserted into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module will be fully inserted. Figure 3–31: G.703 TIMING SELECTION SWITCH SETTING c) G.703 OCTET TIMING If octet timing is enabled (ON), this 8 kHz signal will be asserted during the violation of bit 8 (LSB) necessary for connecting to higher order systems. When L30s are connected back to back, octet timing should be disabled (OFF). d) G.703 TIMING MODES There are two timing modes for the G.703 module: internal timing mode and loop timing mode (default). • Internal Timing Mode: The system clock is generated internally. Therefore, the G.703 timing selection should be in the internal timing mode for back-to-back (UR-to-UR) connections. For back-to-back connections, set for octet timing (S1 = OFF) and timing mode to internal timing (S5 = ON and S6 = OFF). • Loop Timing Mode: The system clock is derived from the received line signal. Therefore, the G.703 timing selection should be in loop timing mode for connections to higher order systems. For connection to a higher order system (UR- to-multiplexer, factory defaults), set to octet timing (S1 = ON) and set timing mode to loop timing (S5 = OFF and S6 = OFF). Table 3–5: G.703 TIMING SELECTIONS SWITCHES FUNCTION S1 OFF → octet timing disabled ON → octet timing 8 kHz S5 and S6 S5 = OFF and S6 = OFF → loop timing mode S5 = ON and S6 = OFF → internal timing mode S5 = OFF and S6 = ON → minimum remote loopback mode S5 = ON and S6 = ON → dual loopback mode ����������� ��������� ������������ ��������������������� ��������������������� ���������������� �������� ��������� ��������� ����� ���� ������������

3-33 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 3 The switch settings for the internal and loop timing modes are shown below: e) G.703 TEST MODES In minimum remote loopback mode, the multiplexer is enabled to return the data from the external interface without any processing to assist in diagnosing G.703 line-side problems irrespective of clock rate. Data enters from the G.703 inputs, passes through the data stabilization latch which also restores the proper signal polarity, passes through the multiplexer and then returns to the transmitter. The differential received data is processed and passed to the G.703 transmitter module after which point the data is discarded. The G.703 receiver module is fully functional and continues to process data and passes it to the differential Manchester transmitter module. Since timing is returned as it is received, the timing source is expected to be from the G.703 line side of the interface. Figure 3–32: G.703 MINIMUM REMOTE LOOPBACK MODE In dual loopback mode, the multiplexers are active and the functions of the circuit are divided into two with each receiver/ transmitter pair linked together to deconstruct and then reconstruct their respective signals. Differential Manchester data enters the Differential Manchester receiver module and then is returned to the differential Manchester transmitter module. Likewise, G.703 data enters the G.703 receiver module and is passed through to the G.703 transmitter module to be returned as G.703 data. Because of the complete split in the communications path and because, in each case, the clocks are extracted and reconstructed with the outgoing data, in this mode there must be two independent sources of timing. One source lies on the G.703 line side of the interface while the other lies on the differential Manchester side of the interface. Figure 3–33: G.703 DUAL LOOPBACK MODE ������������ �������������������� ���������������� ����������������� DMR DMX G7X G7R DMR = Differential Manchester Receiver DMX = Differential Manchester Transmitter G7X = G.703 Transmitter G7R = G.703 Receiver 842774A1.CDR DMR DMX G7X G7R DMR = Differential Manchester Receiver DMX = Differential Manchester Transmitter G7X = G.703 Transmitter G7R = G.703 Receiver 842775A1.CDR

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 3.3.5 RS422 INTERFACE a) DESCRIPTION There are three RS422 inter-relay communications modules available: single-channel RS422 (module 7T), dual-channel RS422 (module 7W), and dual-channel dual-clock RS422 (module 7V). The modules can be configured to run at 64 or 128 kbps. AWG 24 twisted shielded pair cable is recommended for external connections. These modules are protected by optically-isolated surge suppression devices. The two-channel two-clock RS422 interface (module 7V) is intended for use with two independent channel banks with two independent clocks. It is intended for situations where a single clock for both channels is not acceptable. The shield pins (6a and 7b) are internally connected to the ground pin (8a). Proper shield termination is as follows: • Site 1: Terminate shield to pins 6a or 7b or both. • Site 2: Terminate shield to COM pin 2b. The clock terminating impedance should match the impedance of the line. Figure 3–34: RS422 INTERFACE CONNECTIONS The following figure shows the typical pin interconnection between two single-channel RS422 interfaces installed in slot W. All pin interconnections are to be maintained for a connection to a multiplexer. Figure 3–35: TYPICAL PIN INTERCONNECTION BETWEEN TWO RS422 INTERFACES b) TWO-CHANNEL APPLICATION VIA MULTIPLEXERS The RS422 interface may be used for single channel or two channel applications over SONET/SDH or multiplexed sys- tems. When used in single-channel applications, the RS422 interface links to higher order systems in a typical fashion observing transmit (Tx), receive (Rx), and send timing (ST) connections. However, when used in two-channel applications, certain criteria must be followed since there is one clock input for the two RS422 channels. The system will function cor- rectly if the following connections are observed and your data module has a terminal timing feature. Terminal timing is a common feature to most synchronous data units that allows the module to accept timing from an external source. Using the terminal timing feature, two channel applications can be achieved if these connections are followed: The send timing out- puts from the multiplexer (data module 1), will connect to the clock inputs of the UR–RS422 interface in the usual fashion. NOTE ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Shield Shield COM Tx + Tx + Tx – Tx – Rx – Rx – Rx + Rx + 3b 5b 2a 4a 6a 7b 8b Clock RS422 channel 1 RS422 channel 2 Surge 3a 5a 4b 6b 7a 2b 8a Inter-relay communications 7W 842776A3.CDR Dual-channel RS422 module ~ ~ ~ ~ ~ Shield Tx + Tx – Rx – Rx + 3b 2a 6a RS422 3a 4b ~ ~ ~ ~ COM 8b Clock Surge 7a 2b 8a Inter-relay comms. 7T Single-channel RS422 module ~ indicates the slot position ������������ ��� �� ������ ���� ���� ���� ���� �������������������� ��� ��� ��� ��� ��� ����� ��������� ����� � � ��� ��� ����� ������ ��� ��� ��� �� ������ ���� ���� ���� ���� �������������������� ��� ��� ��� ��� ��� ����� ��������� ����� � � ��� ��� ����� ������ ��� ��� � � �������

3-35 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 3 In addition, the send timing outputs of data module 1 will also be paralleled to the terminal timing inputs of data module 2. By using this configuration, the timing for both data modules and both UR–RS422 channels will be derived from a single clock source. As a result, data sampling for both of the UR–RS422 channels will be synchronized via the send timing leads on data module 1 as shown below. If the terminal timing feature is not available or this type of connection is not desired, the G.703 interface is a viable option that does not impose timing restrictions. Figure 3–36: TIMING CONFIGURATION FOR RS422 TWO-CHANNEL, 3-TERMINAL APPLICATION Data module 1 provides timing to the L30 RS422 interface via the ST(A) and ST(B) outputs. Data module 1 also provides timing to data module 2 TT(A) and TT(B) inputs via the ST(A) and AT(B) outputs. The data module pin numbers have been omitted in the figure above since they may vary depending on the manufacturer. Data module 1 Data module 2 Signal name Signal name SD(A) - Send data TT(A) - Terminal timing TT(B) - Terminal timing SD(B) - Send data RD(A) - Received data RD(A) - Received data SD(A) - Send data SD(B) - Send data RD(B) - Received data RD(B) - Received data RS(A) - Request to send (RTS) RS(A) - Request to send (RTS) RT(A) - Receive timing CS(A) - Clear To send CS(A) - Clear To send RT(B) - Receive timing CS(B) - Clear To send CS(B) - Clear To send Local loopback Local loopback Remote loopback Remote loopback Signal ground Signal ground ST(A) - Send timing ST(A) - Send timing ST(B) - Send timing ST(B) - Send timing RS(B) - Request to send (RTS) RS(B) - Request to send (RTS) 831022A3.CDR W7a W2b W8a 7W Shld. Shld. Tx1(+) Tx2(+) Tx1(-) Tx2(-) Rx1(+) Rx2(+) + com Rx1(-) Rx2(-) – INTER-RELAY COMMUNICATIONS W3a W5b W5a W3b W2a W6a W6b W7b W8b W4b W4a RS422 CHANNEL 1 RS422 CHANNEL 2 CLOCK SURGE

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 c) TRANSMIT TIMING The RS422 interface accepts one clock input for transmit timing. It is important that the rising edge of the 64 kHz transmit timing clock of the multiplexer interface is sampling the data in the center of the transmit data window. Therefore, it is impor- tant to confirm clock and data transitions to ensure proper system operation. For example, the following figure shows the positive edge of the Tx clock in the center of the Tx data bit. Figure 3–37: CLOCK AND DATA TRANSITIONS d) RECEIVE TIMING The RS422 interface utilizes NRZI-MARK modulation code and; therefore, does not rely on an Rx clock to recapture data. NRZI-MARK is an edge-type, invertible, self-clocking code. To recover the Rx clock from the data-stream, an integrated DPLL (digital phase lock loop) circuit is utilized. The DPLL is driven by an internal clock, which is 16-times over-sampled, and uses this clock along with the data-stream to generate a data clock that can be used as the SCC (serial communication controller) receive clock. 3.3.6 TWO-CHANNEL TWO-CLOCK RS422 INTERFACE The two-channel two-clock RS422 interface (module 7V) is for use with the synchrophasor feature. The figure shows the module connections. Figure 3–38: TWO-CHANNEL TWO-CLOCK RS422 INTERFACE CONNECTIONS 3.3.7 RS422 AND FIBER INTERFACE The following figure shows the combined RS422 plus fiberoptic interface configuration at 64K baud. The 7L, 7M, 7N, 7P, and 74 modules are used in two-terminal with a redundant channel or three-terminal configurations where channel 1 is employed via the RS422 interface (possibly with a multiplexer) and channel 2 via direct fiber. Tx Clock Tx Data ������������ ��� ��� �� ������ ���� ���� ���� ���� ���� ���� ������ ���� ���� �������������������� ��� ��� ��� ��� ��� ��� ��� ��� ��� ����� ��������� ����� ��������� ����� ���� ���� ��� ��� ��������� ����� ������ ��� ��� ���� ���� ��� ��� ��������� �����

3-37 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 3 AWG 20-24 twisted shielded pair is recommended for external RS422 connections and the shield should be grounded only at one end. For the direct fiber channel, power budget issues should be addressed properly. When using a LASER Interface, attenuators may be necessary to ensure that you do not exceed maximum optical input power to the receiver. Figure 3–39: RS422 AND FIBER INTERFACE CONNECTION Connections shown above are for multiplexers configured as DCE (data communications equipment) units. 3.3.8 G.703 AND FIBER INTERFACE The figure below shows the combined G.703 plus fiberoptic interface configuration at 64 kbps. The 7E, 7F, 7G, 7Q, and 75 modules are used in configurations where channel 1 is employed via the G.703 interface (possibly with a multiplexer) and channel 2 via direct fiber. AWG 24 twisted shielded pair is recommended for external G.703 connections connecting the shield to pin 1a at one end only. For the direct fiber channel, power budget issues should be addressed properly. See previ- ous sections for additional details on the G.703 and fiber interfaces. When using a laser Interface, attenuators may be necessary to ensure that you do not exceed the maximum optical input power to the receiver. Figure 3–40: G.703 AND FIBER INTERFACE CONNECTION 3.3.9 IEEE C37.94 INTERFACE The UR-series IEEE C37.94 communication modules (modules types 76, and 77) are designed to interface with IEEE C37.94 compliant digital multiplexers or an IEEE C37.94 compliant interface converter for use with direct input and output applications. The IEEE C37.94 standard defines a point-to-point optical link for synchronous data between a multiplexer and a teleprotection device. This data is typically 64 kbps, but the standard provides for speeds up to 64n kbps, where n = 1, 2,…, 12. The UR-series C37.94 communication modules are either 64 kbps (with n fixed at 1) for 128 kbps (with n fixed at 2). The frame is a valid International Telecommunications Union (ITU-T) recommended G.704 pattern from the stand- point of framing and data rate. The frame is 256 bits and is repeated at a frame rate of 8000 Hz, with a resultant bit rate of 2048 kbps. The specifications for the module are as follows:. ������ ��� ��� ������������ ��� ����������� ���������� ������ ���� ���� ���� ���� ����� �������������� ��� ��� ��� ��� ��� ����� ��������� ����� � � ��� ��� ����� ��������� ������ ��� ��� ����� ��������� ������ ��� ��� ������������ ��� ��������������� ������ ���� ������ ���� ���� ���� ����� �������������� ��� ��� ��� ��� ��� ����� ��������� ����� ����� ���������

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 • IEEE standard: C37.94 for 2 × 64 kbps optical fiber interface (for 76 and 77 modules) • Fiber optic cable type: 50 nm or 62.5 µm core diameter optical fiber • Fiber optic mode: multi-mode • Fiber optic cable length: up to 2 km • Fiber optic connector: type ST • Wavelength: 820 ±40 nm • Connection: as per all fiber optic connections, a Tx to Rx connection is required The UR-series C37.94 communication module can be connected directly to any compliant digital multiplexer that supports the IEEE C37.94 standard as shown below. The UR-series C37.94 communication module can be connected to the electrical interface (G.703, RS422, or X.21) of a non-compliant digital multiplexer via an optical-to-electrical interface converter that supports the IEEE C37.94 standard, as shown below. In 2008, GE Digital Energy released revised modules 76 and 77 for C37.94 communication to enable multi-ended fault location functionality with firmware 5.60 release and higher. All modules 76 and 77 shipped since the change support this feature and are fully backward compatible with firmware releases below 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of L30 communi- cation for two and three terminal applications. Failure to use it at all ends results in intermittent communication alarms. For customers using firmware revisions below 5.60, it is not required to match the revision of the modules installed. The UR-series C37.94 communication module has six switches that are used to set the clock configuration. The functions of these control switches are shown below. For the internal timing mode, the system clock is generated internally. Therefore, the timing switch selection should be internal timing for relay 1 and loop timed for relay 2. There must be only one timing source configured. For the looped timing mode, the system clock is derived from the received line signal. Therefore, the timing selection should be in loop timing mode for connections to higher order systems. The IEEE C37.94 communications module cover removal procedure is as follows: 1. With power to the relay off, remove the IEEE C37.94 module (type 76 or 77 module): ��������� ������ ������������ ��������������� ���������� ������������ ������� ������������ ����������� ��������� ��������� ������ ���������� ����������� ��������� ����� ��������� ������������ ������������ ��������������� ������� ����������� ������������ ��������� ������������ �������������������� ���������������� �����������������

3-39 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 3 Pull the ejector/inserter clips located at the top and at the bottom of each module simultaneously in order to release the module for removal. Record the original location of the module to help ensure that the same or replacement module is inserted into the correct slot. 2. Remove the module cover screw. 3. Remove the top cover by sliding it towards the rear and then lift it upwards. 4. Set the timing selection switches (channel 1, channel 2) to the desired timing modes (see description above). 5. Replace the top cover and the cover screw. 6. Re-insert the IEEE C37.94 module. Take care to ensure that the correct module type is inserted into the correct slot position. The ejector/inserter clips located at the top and at the bottom of each module must be in the disengaged posi- tion as the module is smoothly inserted into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module will be fully inserted. Figure 3–41: IEEE C37.94 TIMING SELECTION SWITCH SETTING ����������� ��������� ������������ ��������������������� ��������������������� ���������������� �������� ��������� ��������� ����� ���� ������������

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 Modules shipped from January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the follow- ing figure. Figure 3–42: STATUS LEDS The clock configuration LED status is as follows: • Flashing green — loop timing mode while receiving a valid data packet • Flashing yellow — internal mode while receiving a valid data packet • Solid red — (switch to) internal timing mode while not receiving a valid data packet The link/activity LED status is as follows: • Flashing green — FPGA is receiving a valid data packet • Solid yellow — FPGA is receiving a "yellow bit" and remains yellow for each "yellow bit" • Solid red — FPGA is not receiving a valid packet or the packet received is invalid ��� ��� ��� ��� ��� ��� ��������������������� ��������������������� ����� �� �������� ������������������ ���� ��������� ������������������ ������������������ ������������������ ��������������� �������������� �������������� ����������� ������ ��������������������������� ��������������������������� ���������� ��������� ������������

3-41 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 3 3.3.10 C37.94SM INTERFACE The UR-series C37.94SM communication modules (2A and 2B) are designed to interface with modified IEEE C37.94 com- pliant digital multiplexers or IEEE C37.94 compliant interface converters that have been converted from 820 nm multi-mode fiber optics to 1300 nm ELED single-mode fiber optics. The IEEE C37.94 standard defines a point-to-point optical link for synchronous data between a multiplexer and a teleprotection device. This data is typically 64 kbps, but the standard pro- vides for speeds up to 64n kbps, where n = 1, 2,…, 12. The UR-series C37.94SM communication module is 64 kbps only with n fixed at 1. The frame is a valid International Telecommunications Union (ITU-T) recommended G.704 pattern from the standpoint of framing and data rate. The frame is 256 bits and is repeated at a frame rate of 8000 Hz, with a resultant bit rate of 2048 kbps. The specifications for the module are as follows: • Emulated IEEE standard: emulates C37.94 for 1 × 64 kbps optical fiber interface (modules set to n = 1 or 64 kbps). • Fiber optic cable type: 9/125 μm core diameter optical fiber. • Fiber optic mode: single-mode, ELED compatible with HP HFBR-1315T transmitter and HP HFBR-2316T receiver. • Fiber optic cable length: up to 11.4 km. • Fiber optic connector: type ST. • Wavelength: 1300 ±40 nm. • Connection: as per all fiber optic connections, a Tx to Rx connection is required. The UR-series C37.94SM communication module can be connected directly to any compliant digital multiplexer that sup- ports C37.94SM as shown below. It can also can be connected directly to any other UR-series relay with a C37.94SM module as shown below. In 2008, GE Digital Energy released revised modules 2A and 2B for C37.94SM communication to enable multi-ended fault location functionality with firmware 5.60 release and higher. All modules 2A and 2B shipped since the change support this feature and are fully backward compatible with firmware releases below 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of L30 communi- cation for two and three terminal applications. Failure to use it at all ends results in intermittent communication alarms. For customers using firmware revisions below 5.60, it is not required to match the revision of the modules installed. ��������� ����������� �������� ������ �������� ��������������� ����������� ��������� ����������� �������� ������ ������������

GE Multilin 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3 The UR-series C37.94SM communication module has six switches that are used to set the clock configuration. The func- tions of these control switches are shown below. For the internal timing mode, the system clock is generated internally. Therefore, the timing switch selection should be internal timing for relay 1 and loop timed for relay 2. There must be only one timing source configured. For the looped timing mode, the system clock is derived from the received line signal. Therefore, the timing selection should be in loop timing mode for connections to higher order systems. The C37.94SM communications module cover removal procedure is as follows: 1. With power to the relay off, remove the C37.94SM module (modules 2A or 2B): Pull the ejector/inserter clips located at the top and at the bottom of each module simultaneously in order to release the module for removal. Record the original location of the module to help ensure that the same or replacement module is inserted into the correct slot. 2. Remove the module cover screw. 3. Remove the top cover by sliding it towards the rear and then lift it upwards. 4. Set the timing selection switches (channel 1, channel 2) to the desired timing modes (see description above). 5. Replace the top cover and the cover screw. 6. Re-insert the C37.94SM module. Take care to ensure that the correct module type is inserted into the correct slot position. The ejector/inserter clips located at the top and at the bottom of each module must be in the disengaged posi- tion as the module is smoothly inserted into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module will be fully inserted. ������������ �������������������� ���������������� �����������������