GE SPA11A Instructions Manual

TYPES: SPA11A SPA11B SPA12A SPA12B GE Protection and Control 205 Great Valley Parkway Malvern, PA 19355-1337 www . ElectricalPartManuals . com

3 APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 OPTIONS AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 TEMPERATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 DIELECTRIC STRENGTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 CONTACTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 TARGET SEAL-IN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SEISMIC CAPABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 OPERATING PRINCIPLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 OPEN PILOT WIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 SHORTED PILOT WIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 GROUNDED PILOT WIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 OPERATING TIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 TRANSFER TRIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 LOW PASS FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 BURDENS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 RECEIVING, HANDLING AND STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 ACCEPTANCE TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 VISUAL INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 MECHANICAL INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 CRADLE AND CASE BLOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 TARGET SEAL-IN UNIT (SPA 11 B AND 12B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 TELEPHONE RELAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 ELECTRICAL INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 250 DC RATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SENDING END . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 UNDERCURRENT DETECTION {SPA 11A AND 11 B) . . . . . . . . . . . . . . . . . . . . . . . . 14 OVERCURRENT DETECTION (SPA 11A AND 11 B) . . . . . . . . . . . . . . . . . . . . . . . . . 14 GROUND DETECTION (SPA 11A AND 11B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 TRANSFER TRIP {SPA 11 B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 RECEIVING END . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 UNDERCURRENT DETECTION {SPA12A AND 12B} . . . . . . . . . . . . . . . . . . . . . . . . 15 TRANSFER TRIP {SPA 12B} . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 DIELECTRIC TESTS {HIGH POTENTIAL TESTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 HIPOT TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 RESTORING RELAY TO SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 SETTING THE TAP OF THE TARGET SEAL-IN UNIT {SPA 11B AND 12B} . . . . . . . . . . 17 SUPPLY VOLTAGE SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 TERMINAL ARRANGEMENT SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 PERIODIC CHECKS AND ROUTINE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 CONTACTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 ELECTRICAL TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 TELEPHONE RELAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 TARGET SEAL-IN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 LIST OF ILLUSTRATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2 www . ElectricalPartManuals . com

TYPES: SPA11A SPA11B SPA12A SPA12B INTRODUCTION The Type SPA static pilot-wire-monitoring relays are designed for use in conjunction with an SPD pilot-wire system to provide detection of open, shorted, reversed or grounded pilot wires. The relays are powered by a dual-rated, self-contained, isolated DC-to-DC power supply, to reduce the possibility of battery grounds interfering with operation of the pilot-wire scheme. Models are available with 48/110-125 volt DC ratings. The Type SPA 11A and SPA 12A relays provide the basic pilot-wire-monitoring functions. The SPA 11A is the sending-end relay and operates in conjunction with a Type SPA 12A receiving-end relay at the remote terminal (or terminals) of two (or three) terminal lines. These relays will close contacts and operate a light-emitting diode (LED) when an abnormal pilot-wire condition is detected. The Type SPA 11 B and SPA 12B relays include provisions for the transmission and reception of direct transfer-trip signals in either direction, as well as the basic pilot-wire-monitoring functions. The SPA monitoring scheme uses a low-level DC signal in order to avoid interfering with the primary AC pilot wire signal (SPD relays). Within the SPA relays, the DC monitoring signal is separated from the AC signal by low-pass filters. SPA models are available for use with 50 hertz and 60 hertz SPD relays. The Types SPA11A, SPA11B, SPA12A and SPA12B are each packaged in the S2 drawout case, the outline and panel drilling of which is shown in Figure 11. APPLICATION The Type SPA static relays are intended for application as pilot-wire-monitoring relays and/or transfer-trip relays. As noted above, they are designed specifically for use with the SPD pilot-wire relaying system. When only the monitoring function is desired, the Type SPA 11A is required at one end of the pilot circuit, designated as the sending end; and the Type SPA 12A is required at the remote receiving end, or at both remote ends in the case of a three-terminal line. The SPA 11A relay at the sending end circulates a low-level DC current around the pilot loop, which holds the contacts of the undercurrent (UC) functions in both the sending-end and These instructions do not purport to cover all details or variations in equipment nor provide for every possible contingency to be met in connection with installation, operation or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser's purposes, the matter should be referred to the General Electric Company. To the extent required the products described herein meet applicable ANSI, IEEE and NEMA standards; but no such assurance is given with respect to local codes and ordinances because they vary greatly. 3 www . ElectricalPartManuals . com

the UC contacts and operation of the UC LED at both the sending and receiving ends. A shorted pilot wire, resulting in a significant increase in the monitoring current, will result in closure of the contacts of the overcurrent (OC) function and operation of the OC LED in the sending-end relay, and the closure of the UC function contacts at the receiving end. A grounded pilot-wire circuit will result in closure of the contacts of the ground-detection function and operation of the ground-indicating LED in the sending-end relay. Specific information on the magnitude of the circulating current, and operating levels of the UC, OC and ground-detection functions, is provided in the section on CHARACTERISTICS. Elementary diagrams for the two-terminal and three-terminal applica­ tions of the SPA 11A and SPA 12A relays are provided in Figures 20 and 21 respectively. When direct transfer tripping over the pilot wire is desired, in addition to the monitoring functions, the SPA 11 B is required at the sending end and the SPA 128 at the receiving end. These "B" relays include the necessary circuits to transmit and receive the direct transfer-trip signals, as well as the functions required to monitor the pilot-wire circuit as previously described. Typical elementary diagrams for a pilot-wire relaying system with monitoring and transferred tripping are provided in Figure 22 for two­ terminal lines and in Figure 23 for three-terminal line applications. These diagrams illustrate the two-way transfer-trip application in which the transfer-trip signal is initiated by either the sending- end relay (SPA 11 B) or the receiving-end relay {SPA 128). When the transfer-trip signal is to be sent in one direction only, the same relays are applied but the TT unit would not be used at the transfer-trip initiating end and the TTA unit would not be used at the transfer-trip receiving end. Diagrams for the one-way transfer-trip application are available upon request. OPTIONS AND FEATURES There are four types of SPA relays: 1) a sending-end relay, 2) a sending-end relay with transfer-trip capability, 3) a receiving-end relay, and 4) a receiving-end relay with transfer-trip capability. A sending-end relay with the transfer-trip feature may be used with a receiving-end relay without the transfer-trip feature and vice versa. The basic functions of the four types of SPA relays are outlined in the table below. TABLE I FUNCTIONS OF THE SPA RELAYS SENDING RECEIVING TRANSFER TRIP UNDERCURRENT OVERCURRENT GROUND RELAY END END CAPABILITY DETECTION DETECTION DETECTION SPA 11A X X X X SPA 11 B X X X X X SPA12A X X SPA12B X X X 4 www . ElectricalPartManuals . com

result in overcurrent detection, and ground on either conductor of the pilot wire will result in ground detection. RATINGS TEMPERATURE These relays have been designed for continuous operation in ambient temperatures between -20oC and + 55oC per ANSI Standard C37 .90-1978. Over this range, the detection levels will vary by not more than three percent (3%) from their nominal values at 20oc. In addition, these relays will not malfunction nor be damaged if operated in an ambient up to 65oC. DIELECTRIC STRENGTH (AC HIGH-POTENTIAL TEST) For the purposes of dielectric tests, the SPA relays are rated 600 volts. Per ANSI/IEEE C37.90-1978, the high-potential test voltage is 2200 volts AC for one minute. As described in the standard, relays other than new should be tested at 75% of this voltage. CONTACTS The telephone-relay output contacts in the SPA will make and carry 30 amperes for tripping duty and will make and carry 3 amperes continuously. The interrupting ratings are given in Table II. TABLE II INTERRUPTING CURRENT RATINGS OF TELEPHONE-TYPE RELAY CONTACTS AC VOLTS DC VOLTS 115 230 48 125 250 AMPS INDUCTIVE t NON-INDUCTIVE 0.75 2.0 0.5 1.5 1.0 0.5 0.25 3.0 1.5 1.0 t The inductive rating is based on an UR ratio of 0.1 second. 5 www . ElectricalPartManuals . com

The target seal-in unit connected to studs 1 and 11 in the SPA 11 B and SPA 12B relays has the ratings and characteristics shown in Table Ill. TABLE Ill RATINGS AND CHARACTERISTICS OF THE TARGET SEAL-IN UNIT DC Resistance + 10% (Ohms) Minimum Operating (Amperes) Carry Continuously (Amperes) Carry 30 Amps for (Seconds) Carry 10 Amps for (Seconds) 60 Hz Impedance (Ohms) Minimum Dropout (Amperes) SEISMIC CAPABILITY 0.2 7 0.2 0.3 0.03 0.25 52 0.05 TAP 2.0 0.13 2.0 3 4 30 0.53 0.5 The Seismic Fragility Level exceeds 3.5g ZPA when tested using a biaxial multi­ frequency input motion to produce a Required Response Spectrum in accordance with ANSI/IEEE C37 .98-1978, Standard for Seismic Testing of Relays. CHARACTERISTICS OPERATING PRINCIPLES The Type SPA relays are designed to detect an open pilot-wire, a shorted pilot wire, and a grounded pilot wire in a protective system using pilot-wire relays. Type SPD pilot­ wire relays are covered by instruction book GEK-49794. The Type SPA relays operate by circulating a small direct current of approximately 0.75 milliamperes through the pilot wire. The current is provided by the power supply of the sending-end monitoring relay (SPA 11A or SPA 11B). The receiving-end monitoring relay(s) (SPA 12A or SPA 12B) completes the circuit loop for the circulating current without adding or subtracting (sourcing or sinking) any current. OPEN PILOT WIRES The undercurrent units in the SPA relays are energized (or picked up} under normal operating conditiops. When an open circuit of the pilot wire occurs, the current drops to zero and the undercurrent units in both receiving- and sending-end relays drop out and the UC LED indicators light. This is the extreme case of the undercurrent condition. The undercurrent units will drop out for the circulating currents indicated below. 6 www . ElectricalPartManuals . com

GEK-65512 TABLE IV UNDERCURRENT DETECTION LEVELS ARRANGEMENT UNDERCURRENT DETECTION 2 Terminal 2 Terminal 3 Terminal 3 Terminal 0.53 rna or less 0.43 rna or less 0.53 rna or less 0.21 ma or less The overcurrent units in the SPA relays are normally de-energized (or dropped out). When a short circuit of the pilot wire occurs, the current increases significantly, causing the overcurrent unit in the sending-end relay to pick up, and causing the OC LED indicator to light. All the current circulates through the short circuit, thereby reducing the current at the receiving end(s) to zero. This is detected by the undercurrent unit in the receiving-end relay(s). A short circuit is the extreme case of the overcurrent condition. The overcurrent unit of the sending-end relay will pick up for circulating currents of 1.35 milliamperes or greater. GROUNDED PILOT WIRES When the resistance-to-ground of either conductor of the pilot wire falls below 10,000 ohms, the ground unit on the sending-end relay (normally dropped out) will pick up and the GND indicator LED will light. REVERSED PILOT WIRES In the event that the conductors of the pilot wire are accidentally reversed, the circulating current is shunted through a low-resistance path in the receiving-end relay. This results in overcurrent detection by the sending-end relay and undercurrent detection by the receiving-end relay. This condition is the same as in the case of shorted pilot wires. OPERATING TIMES The operating times of the undercurrent, overcurrent and ground detection circuits were intentionally made slow in order to override transient disturbances. The operating times vary, depending upon conditions on the primary system, application arrangements (e.g., two terminals versus three terminals), and the extent of the abnormal condition on the pilot wire. The values in Table V are approximate. They are intended to give a general idea of the time involved. 7 www . ElectricalPartManuals . com

PILOT WIRE CONDITION Open Circuit Short Circuit Grounded Conductor DETECTION TIMEt 300 msec. 300 msec. 300 to 500 msec. RESTORE TIME tt 2000 msec. 700 to 2000 msec. 400 to 800 msec. t Detection time of each function is the time to close its contact upon the occurrence of the condition listed in the table. tt Restore time for each function is the time to reopen its contact when the condition listed in the table is removed and normal circuit conditions are restored. TRANSFER TRIP The SPA 11 B and SPA 12B relays can send a transfer-trip signal over the pilot wire to initiate tripping at the other terminal(s). The signal can be sent from either the sending­ end relay (SPA 11 B) or the receiving-end relay (SPA 12B). It will initiate the tripping of both the local and remote breakers on a two-terminal line, or of all three breakers on a three­ terminal line. The transfer-trip signal is produced by energizing the coil of the TIA unit through an external contact. When the TIA picks up, it reverses the polarity of the DC voltage applied to the pilot wire through studs 7 and 8. The reversed-polarity voltage on the pilot wire causes the operation of the transfer-trip (TI) unit in the local and remote SPA relays. The n output contact connected between studs 1 and 11 is provided with a target seal-in unit and is recommended for tripping duty. The n contact between studs 2 and 3 is an auxiliary contact and has no target seal-in unit. The operating time between energizing TIA at one end of the pilot wire and picking up n at the other end (remote) varies slightly with the length of the pilot wire, as indicated below. The time to pick up the local unit is approximately two (2) cycles, independent of the length of the pilot wire. Short Pilot Wire (Series R = 0 ohm) Long Pilot Wire (Series R = 2000 ohms) Remote TI Pickup Time (60 Hertz Basis) approximately 4 cycles approximately 5 cycles 8 Remote TI Dropout Time (60 Hertz Basis) approximately 6 cycles approximately 6 cycles www . ElectricalPartManuals . com

differential relays are connected to the pilot wire, the operating time will be as follows: Short Pilot Wire Long Pilot Wire Remote TI Pickup Time (60 Hertz Basis) approximately 2 cycles approximately 3 cycles The transfer-trip operating time is virtually independent of station battery voltage for two reasons: 1) the TT units are energized from the regulated 12 volt power supply in the relay; and 2) the operating time of the TTA units varies only slightly with battery voltage, as shown in Fig. 12. LOW PASS FILTER The current circulating through the pilot wire is monitored through a low-pass filter in each of the SPA relays. The filter serves two purposes: 1) it screens out the AC signals transmitted over the pilot wire by the SPD relays; and 2) it screens out any AC disturbances or "noise" on the pilot wire. Relay models are available for use on 50 hertz systems and 60 hertz systems. The filters are slightly different, to ensure adequate attenuation at the system frequency. BURDENS The table below indicates the burdens of the SPA relays on the DC station supply under normal operating conditions. SPA11A SPA11B SPA12A SPA 12B 48 V 60 ma 60 ma 60 ma 60 ma TABLE VI DC BURDENS WITH TTA ENERGIZED 110 v 125 v 48 V 110 v 125 v 25 ma 30 ma 25 rna 30 ma 150 rna 80 ma 90 ma 25 ma 30 ma 25 rna 30 ma 150 rna 80 ma 90 ma Values may vary by up to 30 % SETTINGS The SPA relays were designed and are factory tested such that calibration by the user is unnecessary. There are no adjustments to be made. The power supplies within the relay must be set by the user to correspond with the DC input voltage. This entails the positioning of two adjacent selectors on the printed-circuit board that contains the power supply. The positions are clearly labeled on the printed­ circuit board. The relays that include the transfer trip feature {SPA 11 B and 12B) contain an additional voltage link to be set. It is located above the target seal-in unit on the mounting plate. 9 www . ElectricalPartManuals . com

application or a three-terminal application. This entails the positioning of a selector on the printed-circuit board. The target seal-in unit tap setting should satisfy the following two requirements: 1) the minimum trip-circuit current should be enough to operate the target seal-in (at least 150% of tap is recommended); and 2) the target seal-in unit resistance on the tap chosen must be low enough so that the required trip current will flow. CONSTRUCTION The Type SPA relays are assembled in the small-size, double-ended (52) drawout case having studs at both top and bottom ends in the rear for external connections. The electrical connections between the relay and case studs are through stationary molded inner and outer blocks, between which nests a removable connection plug. The outer blocks attached to the case have the studs for the external connections, and the inner blocks have the terminals for the internal connections. The four types of SPA relays have the same nameplate, which is shown in Figure 14. There are two cutouts for the LED indicators and the selector pins. One set of selector pins sets the DC voltage rating, and the other selector pin sets the relay for two- or three­ terminal line applications. The labels between the cutouts are identical for all four types of SPA relays. The sending-end relays (SPA 11A and 11 B) have no selector pin to set the relay for two- or three-terminal applications, and the receiving-end relays (SPA 12A and 128) have no OC and GND indicator LEOs. Every circuit in the drawout case has an auxiliary brush, as shown in Figure 13, to provide adequate overlap when the connecting plug is withdrawn or inserted. Some circuits are equipped with shorting bars (see internal connections in Figures 1, 2, 3, and 4). The relay mechanism is mounted in a steel framework called the cradle, and is a complete unit with all leads terminated at the inner blocks. This cradle is held firmly in the case with a latch at both top and bottom. The connection plug, besides making the electrical connections between the respective blocks of the cradle and case, also locks the latch in place. The cover, which is drawn to the case by thumbscrews, holds the connection plugs in place. On the relays that include the transfer trip feature (SPA 11 B and SPA 12B), the target-reset mechanism is a part of the cover assembly. ' The relay case is suitable for either semiflush or surface mounting on all panels up to two inches thick, and appropriate hardware is available. The relay is shipped with hardware suitable for mounting on 1/8 inch steel panels. Panel thickness, if other than 1/8 inch, must be indicated on the relay order to ensure that proper hardware will be included. Outline and panel drilling is shown in Figure 11. A separate testing plug can be inserted in place of the connection plug to test the relay in place on the panel, either from its own source of current and voltage, or from other sources; or the relay can be drawn out and replaced by another that has been tested in the laboratory. 10 www . ElectricalPartManuals . com

printed circuit boards, the other SPA relays have the same construction, with parts as indicated in Table VII. Surge capacitors are not included in Table VII (refer to the internal connections diagrams, Fig. 1 through 4). TABLE VII CONSTRUCTION VARIATIONS RELAY TRANSFER TRIP PARTSt OC UNIT UC UNIT GND UNIT GND REACTOR SPA 11A SPA11B SPA12A SPA 12B X X X X X X X X X X X X t Transfer Trip Parts: IT Unit Target Seal-in Unit ITA Unit DC Voltage Volt Link R8 - 150 Ohm Resistor R93 - 1000 Ohm Resistor R94 - 1000 Ohm Resistor R95 - MOV There are six different printed-circuit boards used in the four SPA relays as indicated in Table VIII. The sending-end relays, SPA 11 A and 11 B, each contain two printed-circuit boards and the receiving-end relays, SPA 12A and 12B, each contain one printed-circuit board. For later model SPA relays {identified by a "Rev.A" following the model number) there is a new PCB-1, power supply and detection board. The following tables indicate board positions for the original and "Rev.A" models. The internal-connection diagrams for the printed-circuit boards are shown in Figures 5 through 10. TABLE VIll-A PRINTED CIRCUIT BOARD INFORMATION Oriqinal Models PCB TRANSFER ASSEMBLY Hz FRONT VIEW TRIP RELAY: PC Board NUMBER 50/60 POSITION LED INDICA TORS CIRCUITRY SPA11A: PCB-1 0184B8614 G2/G1 Left Slot (1} Power Supply (Yellow) NO SPA 11A: PCB-2 0184B8617 G2/G1 Right Slot {3) UC, OC, GND {All Red) NO SPA11B: PCB-1 0184B8612 G2/G1 Left Slot (1) Power Supply {Yellow) YES SPA11B: PCB-2 0184B8616 G2/G1 Right Slot {3) UC, OC, GND (All Red) YES SPA 12A: PCB-1 0184B8615 G2/G1 Right Slot (2) Power Supply (Yellow), NO UC (Red) SPA12B: PCB-1 018488613 G2/G1 Right Slot (2) Power Supply (Yellow), YES uc (Red) 11 www . ElectricalPartManuals . com

SPA MODELS IDENTIFIED AS "REV.A" PCB ASSEMBLY HZ FRONT VIEW TRANSFER TRIP RELAY: PC BOARD NUMBER 50/60 POSITION LED INDICATORS CIRCUITRY SPA11A: PCB-1 0184B8730 G2/G1 Left Slot ( 1) Power Supply (Yellow) NO SPA 11A: PCB-2 0184B8617 G2/G1 Right Slot (3) UC, OC, GND (All Red) NO SPA11B: PCB-1 0184B8730 G4/G3 Left Slot (1) Power Supply (Yellow) YES SPA 11 B: PCB-2 0184B8616 G2/G1 Right Slot (3) UC, OC, GND (All Red) YES SPA12A: PCB-1 0184B8730 G6/G5 Right Slot (2) Power Supply (Yellow), NO UC (Red) SPA12B: PCB-1 0184B8730 G8/G7 Right Slot (2) Power Supply (Yellow), YES UC (Red) RECEIVING, HANDLING AND STORAGE These relays, when not included as part of a control panel, will be shipped in cartons designed to protect them against damage. Immediately upon receipt of a relay, examine it for any damage sustained in transit. If injury or damage resulting from rough handling is evident, file a damage claim at once with the transportation company and promptly notify the nearest General Electric Sales Office. When the relay is received, check the nameplate stamping to make sure that the model number and rating of the relay agree with the requisition. Reasonable care should be exercised in unpacking the relay in order that none of the parts are injured or the adjustments disturbed. If the relays are not to be installed immediately, they should be stored in their original cartons in a place that is free from moisture, dust and metallic chips. Foreign matter collected on the outside of the case may find its way inside when the cover is removed, and cause trouble in the operation of the relay. ACCEPTANCE TESTS Immediately upon receipt of the relay an inspection and acceptance test should be made to make sure that no damage has been sustained in shipment. These tests may be performed as part of the installation, or as acceptance tests or both, at the discretion of the user. 12 www . ElectricalPartManuals . com

relay agree with the requisition. Check that the model number on the label in the back of the case agrees with the nameplate. Remove the relay from its case and check that there are no broken or cracked molded parts or other signs of physical damage, and that all screws are tight. MECHANICAL INSPECTION Cradle and Case Blocks Check that the fingers on the cradle and the case agree with the internal connection diagram. Each cradle finger should be flush or project above the barrier between fingers. Check that there is a coil spring under each finger. The case fingers, if not held down by a shorting bar, should come within one-sixteenth (1/16) of an inch of touching a straight edge bridging the case block from side to side. If a finger is held down by a shorting bar, it should require at least one pound of force (450 grams) to open the electrical circuit between the finger and the shorting bar. See Figure 13. Check that each auxiliary brush extends above the barrier between fingers. Target Seal-in Unit (SPA 118 and 128) Pick up the armature by hand. The orange target should appear. When the armature is released, the target should remain in view. Push in on the reset arm. The target should drop from view. Hold the armature up by hand. The target should not be at the end of its travel. Verify this by reaching in one of the windows of the target with a sharp instrument, such as a knife or scribe, and pushing upward. The target should move definitely upward (at least one sixty-fourth of an inch, or 0.4 millimeter). Release the armature. The target should fall visibly downward (at least 0.010 inch or 1/4 millimeter) before the target is caught by the latch. Telephone Relays Observe each telephone relay in the de-energized position. Check that each normally open contact has a gap spacing of at least 0.010 inch or 0.25 millimeter. Check that each normally-closed contact has a contact pressure of at least five grams {Sg) by deflecting the stationary contact away from the moving contact with a force gage. Operate each telephone relay by pressing on the armature. In the operated position, check that each normally closed contact has at least 0.010 inch (0.25 millimeter) gap. Check that each normally open contact has at least 0.005 inch (0.13 millimeter) of overtravel after contact, by observing that the contact still closes with a 0.0025 inch (0.06 millimeter) shim inserted between the armature and pole piece. ELECTRICAL INSPECTION The correct operation of the contacts may be verified by manually operating the telephone relays and monitoring the contacts with an ohmmeter. 13 www . ElectricalPartManuals . com

The 250 DC rating is accomplished with an external pre-regulator, 0138B7511G2 and G3. The pre-regulator is a DC-to-DC Convertor that reduces the 250 VDC station voltage to the 125 VDC rating of the SPA relay. Therefore, when this pre-regulator is used, the SPA relay DC pins on the 125 volt position. The pre-regulator in designed to be mounted on the panel next to the relay. The electrical connections for the pre-regulator are made as follows: INPUT PRE-REGULATOR OUTPUT TERMINAL + 250 VDC A + 125 VDC DC C DC Sending End Undercurrent Detection (SPA 11A and 11 B) PRE-REGULATOR TERMINAL B c Refer to test plug connection diagram, Figure 15. TO SPA RELAY TERMINAL 4 5 Apply DC power to studs 4 (positive) {+) and 5 (negative) {-). Be sure that the power supply selector pins on printed-circuit board # 1 {left hand board) are set properly for the DC voltage being used. It is necessary to remove the nameplate and card guide to reposition the selector pins. Connect a 39,000 ohm external resistor {rated 1/4 watt) between studs 7 and 8. The UC telephone relay should drop out and the UC indicator LED should light. Replace the resistor with a 20,000 ohm resistor. The UC telephone relay should be picked up and the UC indicator LED should be off. Overcurrent Detection {SPA 11A and 11B) Refer to test plug connection diagram, Figure 15. Repeat the undercurrent test using the following resistors: With 6,200 ohms {1/4 watt), the OC telephone relay should pick up and the OC LED should light. With 13,000 ohms, the OC telephone relay should be dropped out and the OC indicator LED should be off. Ground Detection {SPA 11A and 11 B) Refer to test plug connection diagram, Figure 16. Apply DC power to studs 4 (positive) (+) and 5 (negative) {-). Connect a 10,000 ohm external resistor {rated 1/4 watt) between studs 7 and 16. The GND telephone relay should pick up and the GND indicator LED should light. Transfer Trip {SPA 11 B) Refer to test plug connection diagram, Figure 17. 14 www . ElectricalPartManuals . com

sure that the DC voltage link above the target seal-in unit is in the proper position.Apply 75% of rated voltage to studs 4 {positive) {+) and 5 (negative) {-) and to studs 19 (positive) (+) and 20 (negative) (-). Verify that then A and TT telephone relays pick up. Receiving End Undercurrent Detection (SPA 12A and 128) Refer to test plug connections diagram, Figure 18. Apply de power to studs 4 (positive) (+) and 5 (negative) {-). Be sure that the power­ supply selector pins on the printed-circuit board are set properly for the DC voltage being used. Set the two- or three-terminal selector pin on the printed-circuit board in the two­ terminal position. Connect a 24 volt DC power supply in series with a 30,000 ohm resistor (rated 1/4 watt) between studs 7 (positive) (+)and 8 {negative) (-). The UC telephone relay should drop out and the UC indicator LED should light. Replace the resistor with a 10,000 ohm resistor. The UC telephone relay should be picked up and the UC indicator LED should be off. Set the two or three-terminal selector pin in the three-terminal position. Repeat the above tests using a 62,000 ohm resistor (UC LED should light) and a 30,000 ohm resistor (UC LED should be off). Transfer Trip (SPA 12B) Refer to test plug connection diagram, Figure 19. Connect a 24 volt DC supply in series with an 11,000 ohm resistor (rated 1/4 watt) between studs 7 (positive) {+) and 8(negative) {-). Be sure that the DC voltage link above the target seal-in unit is in the proper position. Apply 75% of rated voltage to studs 4 (positive) (+) and 5 (negative){-) and to studs 19 (positive) (+) and 20 (negative) (-). Verify that the TI A and TI telephone relays pick up DIELECTRIC TESTS (HIGH POTENTIAL TESTS) Introduction The surge capacitors {C24 through C41) used in the SPA relays do not have voltage ratings to withstand AC hipot voltage; therefore, caution must be exercised when hipotting, to avoid damaging these capacitors. It is recommended that hi pot tests be performed on a bench with the relay in its case. If the relay is to be hipot tested together with other apparatus in an equipment, all external connections to terminals 6 and 16 (surge ground) must be removed. The hipot test should be 2200 volts rms, 50 or 60 hertz for new relays or 1650 volts rms, 50 or 60 hertz for other relays. New relays are defined as those that have not been in service, which are not more than one year old from the date of shipment, and that have been suitably stored to prevent deterioration. The duration of application of the test voltage for both new and old relays should be 60 seconds. 15 www . ElectricalPartManuals . com

a) Remove internal connection from surge capacitor buses to surge ground terminals 6 and 16. b) Common Mode Hi pot Tests (All terminals to case) Temporary connections should be made to tie all relay terminals together. Hi pot voltage can then be applied between this common connection and the relay case. c) Transverse Mode Hi pot Tests (Between circuits) For hipot tests between circuits of the relay, the surge capacitors must be temporarily disconnected from the surge capacitor buses inside the relay. Hipot voltage can then be applied between any two of the circuit groups indicated in Table IX. Where there is more than one terminal in a group, those terminals should be jumpered together. An alternate test using a 500 DC MeggerTM can be performed between the circuit groups of Table IX with the surge capacitors connected in their normal manner. While this method does not test the relay to its full dielectric rating, it will detect some cases of degraded insulation. TABLE IX CIRCUIT GROUPING FOR TRANSVERSE MODE HI POT TESTS RELAY TERMINALS OF CIRCUIT GROUPS SPA11A a. 4,5 b. 7, 8 c. 9, 10 d. 12, 13 e. 14, 15 f. 17, 18 SPA 11B Same as SPA 11A plus: g. 1, 11 h. 2, 3 I. 19, 20 SPA12A a. 4,5 b. 7, 8 c. 9, 10 d. 12, 13 SPA 12B Same as SPA 12A plus: e. 1, 11 f. 2, 3 g. 19, 20 16 www . ElectricalPartManuals . com

After the hipot testing is completed, the surge capacitors should be reconnected to the surge capacitor buses, the surge capacitor buses reconnected to studs 6 and 16, and all external wiring to terminals 6 and 16 (surge ground) should be reconnected. INSTALLATION PROCEDURE Mount the relay vertically in a clean, dry and well lighted place to allow accessibility for cleaning, inspection and testing, and where it will not be subjected to excessive vibration or heat. Unless mounted on a steel panel that adequately grounds the relay case, the case should be grounded through a mounting stud or mounting screw with a conductor not less than #12 AWG copper wire or its equivalent. It may be necessary to remove paint from the case at the point of connection to ensure reliable contact. Terminal 6 {bottom surge ground) should be connected to the lower case-mounting stud and terminal 16 {top surge ground) should be connected to the upper case-mounting stud using #12 AWG copper wire. Also, terminals 6 and 16 should be tied together with #12 AWG copper wire to insure adequate grounding {see external jumpers in Figures 1 through 4). Check the nameplate to be sure that the relay is the desired model number. The section on ACCEPTANCE TESTS contains all the tests that the user, at his discretion, may want to perform as part of the installation procedure. SEITING THE TAP OF THE TARGET SEAL-IN UNIT {SPA11B and 12B) The contact adjustment will not be disturbed if the following procedure is followed when changing the tap. Take either one of the two screws from ttie left contact plate and transfer it to the desired tap position in the right tap plate. Then remove the screw from the undesired tap position in the right tap plate and transfer it to the vacant location in the left contact plate. Do not leave the unit with screws in both the tap locations of the right plate. SUPPLY VOLTAGE SETTING Be sure to set the two selector pins on the printed circuit containing the power supply {left-hand board in the sending-end relays, only board in the receiving end relays) to correspond with the station battery voltage. For SPA relays with REV A on the nameplate there is only one power-selection link to set. Place in the setting corresponding to the station battery. For the SPA 11 B and 12B, which contain the transfer-trip feature, it is also necessary to set a link above the target seal-in unit. TERMINAL ARRANGEMENT SETTING The SPA 12A and 12B receiving-end relays are to be set for either a two- or a three­ terminal arrangement. This is accomplished by positioning a selector pin on the printed circuit board. The positions are clearly labeled on the board. 17 www . ElectricalPartManuals . com

WARNING: HIGH VOLTAGES MAY APPEAR ON PILOT WIRES UNEXPECTEDLY AT ANY TIME. USE APPROPRIATE CARE WHEN MAKING CONTACT WITH PILOT WIRES OR EQUIPMENT CONNECTED TO THEM The pilot wire protective equipment, if installed, is designed to limit the pilot-wire voltages to a level that will not damage the wires or equipment connected to them. It does not limit the voltages to a level that is safe for unprotected personnel contacting the pilot wires or connected equipment. THEREFORE, USE APPROPRIATE CARE WHEN MAKING CONTACT WITH PILOT WIRES, EVEN WHEN THE PILOT-WIRE PROTECTIVE EQUIPMENT IS IN PLACE. In view of the vital role of protective relays in the operation of a power system, it is important that a periodic test program be followed. It is recognized that the interval between periodic checks will vary depending upon environment, type of relay and the user's experience with periodic testing. Until the user has accumulated enough experience to select the test interval best suited to his individual requirements, it is suggested that the points listed under ACCEPTANCE TESTS be checked at an interval of from one to two years. Check the items described under ACCEPTANCE TESTS - VISUAL INSPECTION AND MECHANICAL INSPECTION. Examine each component for signs of overheating, deterioration or other damage. Check that all connections are tight by observing that the lockwashers are fully collapsed. CONTACTS Examine the contacts for pits, arc or burn marks, corrosion, and insulating films. For cleaning contacts, a flexible burnishing tool should be used. This consists of a flexible strip of metal with an etch-roughened surface, resembling in effect, a superfine file. The polishing action is so delicate that no scratches are left, yet any corrosion is thoroughly and rapidly cleaned. The flexibility of the tool ensures the cleaning of the actual points of contact. Do not use knives, files, abrasive paper or cloth of any kind to clean relay contacts. ELECTRICAL TESTS The tests described in the electrical inspection of the ACCEPTANCE TESTS suffice as periodic checks for the SPA relays. Refer to Figures 15 through 19 for the test plug connections. If a relays fails to pass one or more of these tests, it requires servicing. 18 www . ElectricalPartManuals . com

boards. Failure to observe this caution may result in damage to and/or misoperation of the relay. Telephone Relays Adjustment of telephone relays requires skill and experience for best results. The following guidelines may be of assistance. Increasing the stroke of the moving spring will raise pickup, as will decreasing normally-closed contact overtravel. Increasing normally­ open contact overtravel or increasing residual gap will increase dropout. After adjusting, be sure to check gaps and overtravels and readjust if necessary to keep them above their minimum values. Target Seal-in Unit As readjustment of the target seal-in unit may affect the Seismic Fragility Level, it is advised that no mechanical adjustments be made if seismic capability is of concern. The two moving contacts should be horizontal and both should meet the stationary contacts together. There should be approximately one sixty-fourth inch (0.4 millimeter) gap between the armature and the pole piece when the contacts touch. Adjust the stationary contact positions if required to obtain these conditions. Using well-filtered direct current (DC), check the pickup and dropout current and compare the values to those given in RATINGS. If necessary, adjust the spring tension and contact overtravel. RENEWAL PARTS It is recommended that sufficient quantities of renewal parts be carried in stock to enable the prompt replacement of any that are worn, broken or damaged. Should a printed-circuit card become inoperative, it is recommended that this card be replaced with a spare. In most instances, the user will be anxious to return the equipment to service as soon as possible and the insertion of a spare card represents the most expeditious means of accomplishing this. The faulty card can then be returned to the factory for repair or replacement. Although it is not generally recommended, it is possible, with the proper equipment and trained personnel, to repair cards in the field. This means that a troubleshooting program must isolate the specific component on the card that has failed. By referring to the internal-connection diagram for the card, it is possible to trace through the card circuit by signal checking and, hence determine which component has failed. This, however, may be time consuming and if the card is being checked in place in its unit, as is recommended, will extend the outage time of the equipment. See Cautions, next page. 19 www . ElectricalPartManuals . com

equipment suitable for use on the delicate solid-state components must be used and, even then, care must be taken not to cause thermal damage to the components, and not to damage or bridge over the printed circuit buses. The repaired area must be coated with a suitable high-dielectric plastic coating to prevent possible breakdowns across the printed-circuit buses due to moisture or dust. ADDITIONAl CAUTION: Dual in-line integrated circuits are especially difficult to remove and replace without specialized equipment. Furthermore, many of these components are used on printed-circuit cards that have bus runs on both sides. These additional complications require very special soldering equipment and removal tools as well as additional skills and trainmg, which must be considered before field repairs are attempted. When ordering renewal parts, address the nearest Sales Office of the General Electric Company, specify quantity required, name of the part wanted, and the complete model number of the relay for which the part is required. Since the last edition, Figures 20 and 21 have been revised. 20 www . ElectricalPartManuals . com

TITLES OF FIGURES Internal-Connections Diagram for Type SPA 11A Relay Internal-Connections Diagram for Type SPA 11 B Relay Internal-Connections Diagram for Type SPA 12A Relay Internal-Connections Diagram for Type SPA 12B Relay Internal Connections for printed circuit board in position PCB-1 in SPA 11A (No rev. letter) Board Identity: : 0184B8614 G- lnternal Connections for printed circuit board in position PCB-1 in SPA 11A (Rev.A) Board Identity: 0184B8730 G- lnternal Connections for printed circuit board in position PCB-2 in SPA 11A (both no Rev .letter and Rev.A) Board Identity: 0184B8617 G- lnternal Connections for printed circuit board in position PCB-1 in SPA 11 B (No rev. letter) Board Identity: 0184B8612 G- lnternal Connections for printed circuit board in position PCB-1 in SPA 11 B (Rev.A) Board Identity: 0184B8730 G- lnternal Connections for printed circuit board in position PCB-2 in SPA 11 B (both no rev. letter and Rev.A) Board Identity: 0184B8616 G- lnternal Connections for printed circuit board in position PCB-1 in SPA12A (No rev. letter) Board Identity: 0184B8615 G- lnternal Conn·ections for printed circuit board in position PCB-1 in SPA 12A (Rev.A) Board Identity: 0184B8730 G- lnternal Connections for printed circuit board in position PCB-1 in SPA 12B (No rev. letter) Board Identity: 0184B8613 G- lnternal Connections for printed circuit board in position PCB-1 in SPA 12B (Rev.A) Board Identity: 0184B8730 G- Outline and Panel Drilling ITA Operating Time Versus Supply Voltage Auxiliary Brush and Shorting Bar Front View Photograph of SPA 11 B Relay with Nameplate Attached Test-Plug Connections for SPA 11 A and 11 B UC and OC Acceptance Test Test-Plug Connections for SPA 11 A and 11 B GND Acceptance Test Test-Plug Connections for SPA 11B Transfer-Trip Acceptance Test Test-Plug Connections for SPA 12A and 12B UC Acceptance Test Test-Plug Connections for SPA 12B Transfer-Trip Acceptance Test Elementary System Diagram for Pilot-Wire Relaying for Two-Terminal Lines Using SPD11A, SPA 11A and SPA 12A Relays Elementary System Diagram for Pilot-Wire Relaying for Three-Terminal Lines Using SPD11A, SPA 11A and SPA12A Relays Elementary System Diagram for Pilot-Wire Relaying and Two-Direction Transfer Trip on Two-Terminal Lines Using SPD11A, SPA 11B and SPA 128 Relays Elementary System Diagram for Pilot-Wire Relaying and Two-Direction Transfer Trip on Three-Terminal Lines Using SPD11A, SPA 11B and SPA 128 Relays 21 www . ElectricalPartManuals . com

1 13 POWER SUPPLY.; DETECTION BD. INT. CONNS. 018488714 SHORT *=FINGER C 2fJ TO C 33 36:39: .OSu f J ... GEK-65512 r O C -, lrGNOl---------l I IS SURGE 1 17 I GROUNo10 I f t/J l ) i I I EXTERNխL I JUMP* v-+---1--H 7 DETECTION 80. 1...-L-+---r-uS INT. CONNS. 9 018488717 V+-+----t;-v l 0 I Figure 1 {0275A3240-0) Internal Connections Diagram for Type SPA 11A Relay 22 www . ElectricalPartManuals . com

a .::tr==n-=-_J I I I I I I l I INT. CONN. V2 ( 1-JI) v 1 \Low) 0184B871G r T-SI TT I I T-SI POWER SUPPLY DETECTOR 80. tNT CONNS 01848 8712 TT TTA I SHORT I* =FINGER J 6 ......... , l 8 (-) 1 ZL. T T SlRGE 1 PILOT.! 1 AUX IN GROUt-..0 I WIRE t C24 TO C 39=.05uf C40.41=.005uf 1 I...--------- -------- ---4 '2. 50 V- No L\ K K l 10 SPO.J LOCKOUT v ժ ct- ct - rfl Cf'. y a: ll'l V C'l Qr¥- >.Ƌ Figure 2 (0275A3241-3) Internal Connections Diagram for Type SPA 11 B Relay 23 I N 0 T լ -.t . ('\.} ի ..r (\.1 p ٥ www . ElectricalPartManuals . com

r u e-, 1 13 uc C28 9 32 3 G 9=05uf ...., ..., .., ..., .., . GEK-65512 SURGE GROUND 16 r- 1 POWER SUPPLY DETECTOR 80. INT. CONNS. 018488715 J C8 ..__ ___ ___, I Ou f M(-) '( s 1 7 ------ ., i EXTERNAL I JUMPER I L uc 0--, l (-) 6 1 s 10 SURGE 1 PI LOT J l SPOJ I IN GROUND I WIRE LOCKOUT I C40_,41=-.005uf L ______ -- - .J Figure 3 (0275A3242-0) Internal Connections Diagram for Type SPA 12A Relay 24 www . ElectricalPartManuals . com

1 9 t N PUT C + ) 20 K(-) ~ u c V\I H E N U S EV r--._ POW ER SUPPLY .J DETECTOR B D . I N T. CON N S . 01 8 4 8 871 3 R E. L I". 'Y "- I T -SI T T T TA ' a R-1'1'11 N.A LS 1 o . c . v . . @ l't) I N P UT 4 o 1 ' i u c 5 . (-) I©!(-) INPUT T-SI I I S HO R T I * = FI NGER T T TTA c s '--.4-----. IOuf &J) 7 4 (t)J 6 ' l 8 (-) L O C SU RGE ' , PILOTJ 1 AU X I N G ROUND I WIRE 1 C24; 5,8j 9) 32 TO 39= . 0 5 u f C Ƈ0., 41 :_ .00q_u! j - - - - - - - - - - - - - - P to:.E- RE G. U \..A."T O R (w H E.N U:>S.D) u c 9 l 1 0 S POJ LOC KOUT v- ٤ 0' է '¢ ը - ٣ t<> )::: ()'-. ƈ Ɖ Ɗ ·ƃ Ci l : թ I . l ISl i V: c-J , O Ƅ ISJ U) /' ƅ Ɔ <:J Figu re 4 (0275A3243-3) Internal Connections Diagram for Type SPA 1 28 Relay 25 www . ElectricalPartManuals . com

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:;, c ., .., .1- C 1 0 i' luF A 1 1 -tp d 0 I A15 R16 A35 3o.K I .4K I ;:;"--- 0 O tt> ٟ- V1 !:t. o­ o _ :::J o ., _... n V1 co w , 0 ...a ...., R39 A40 U4 j ƒ„,  ,.-- A29 1 . 3K A21 A H"' l1uF A28 50K A30 OK 50K r-n :.v9K ʤʥʦʧK T C14 A22 I A23 I < U6A 1 301K160 . .4K ..,.... C i 6 0 1 3 0 1 4 C 1 5 A 19 :;;: l50K A26 .tOOK A24 75 . 0K U69 t-2P1 C 1 B ? TP2 J PILOT WIRE (;-) A37 vv 0 REF (OV) - · 0'\ :::JOO Vl oo .,- 0 A44 49 . 91( L-- 9 )> 5' _... .-+ ...a it) )> .... :;, - e» :x:J - +12 A54 ٜOK ..1,_C19գ 016 T' t.uF A47 seo tt> n :C: o )> :::J I DOK I 1 028 TP3 R52 YELLOW R69 Lt 1 . 3K TO \JC UNIT 1 ;;"' (- 12VI ) 8 - :;, co tt> 0 ʣ C» -· .., o Q_ :::J - "' Q_ - 1 01 A2 It) 0 (+) soov 1 :3 .... 1/2:W S R7 C7 ʗ .,

;:, _ V' O ., .... )> Ol .... _. a;, )> (X) - ""-J cr .... o '7" .-+ .... =r- ;:, - o ;:, .-+ ;xJ 111 111 ... < ;:, • Q) IV ii" (; (X) ::; 0 ź ;:, Q) ;:, ;:, tD o..A ;xJ s· l't) ::l < 8 l> O' - .... a;, 4' 0 - · Q) 9 a. a. o: n tl) ::; · ;:, n " c Ź ;:+ . . Dl 0 o Ǝ» ....... (X) o.. 7 lXI 00 en .... ""-J C\ I !(4 5= LM224 'PIN 4 - +V,PIN I I -GND Q &,7, 9 = 2 N 2222A Q 8 = 2 N 2907 CRIS -22 , 28 - 30,4ٛ, SO:IN4148 CR31=1N 7 54A v 9 ALL R E!> 1/4W E X C EPT R68, Eo9.70 •t2 w PILOT WIRE C-J * = CONNECTED TO PIN 10 DN P. C.B. NO. I I N T. CONN!>. 018488714 ;/ R40 200K T P I v v 10 8 tf, H 2VJ R41 ٚOOK R42 200K ) v 7 R E F C O V J C R 32 I C R33 OC REO '41 UC RED zY 3y ;,. oc ... ٜ uc ..._ _ _ _ _ _ _ _ ._ _ _ _ _ _ _ _ R 55 C R34 G. - _ _ _ )_ ReO I M !H2V ')'( & I - - ʖ - ...1 G\ m I en U'l U'l .... ‘ ww . ElectricalPartManuals . co

. tr> 0 "'-l :) I» -o­ n e c:o ­ . oo - 7 - · c:o :) QO "' -.;.J -o - l> "" - .!..! - - 1:0 - s- Z r+ o tr> ... .... If) :) < I» . - - n tr> o o ::) d) :) ՚ If)  c:o - · o o I» :) """ "' Ų0' O. ""' ft) ""' ::) :::!. - ::)  ;- . . 0. e n .... :;"  E c:o ;::i." oo c:o 0\ o - I» N ..., G") o. I ft-) BATT. I< ՛ (RI l R"-: h - v , re - I c ʓ 2V l >E> TACT > 4 lŴŵ C7 CR7 ICR5 ʝ...J T و ʙ TO TTII C-l C0!11 ! ,F j.05 uf 5 2 CR!l C R G l u f ٘----ٙ---r------------------------L-ٚIIIٛCO vz ·ْ ٻ---------=>ڄ---ڈ o-ʞ C 3 R?ٓ R210 R!>O & _C2_ ي & I VI T'"i'Ul' € 1:. 301 K 150K i50K ՟(13 i80K .O!Uf lOO-n __.._, 75,0K ::;::c11 q . I 13 ...R ٝ8 TPI C l\40 I CR42 I C> lo * >7 {0VJ '-?.0"" jc'!_44 CR4& ' k:::i-,. 014 • E)1c PILOT WIٖ ن I . -- ՠ R4 > 9 E C+l .--- CRI CR4 C e. QlŶŷ ِ:,;;,._ R88 ~ iUT ,;..r C R48 !>2K Ů Wo: C24 -.:,; f-- 0 12 1 • -_r CRIS ْ<" · ً r L__, q C25 Ql I .&.ll 02 470pf kt .B..!Q. .E!l. R IB I Rl9 .047uf 1 - 4 9.9K 470.11. I 150n 22K R85 I' 7 R2 1'121 67 REo R92 ʚ iQil JC 3 -t, 3 ŭ TO TTٕ C+l COl TACT >s ·ՙ ů 100.4. l R/4 .J!.lL C Rib Y.s T3 B.L :,r .m 1 Cl\3 1rl: "'g6 Ƒƒ --;:;- t:. YELLow ).; C R I I TP3n J 1011. P.2j IOOA ʕ " 51 II. T ' TT. [C I 2 : LAS1505 A : TRIM . C,I C60 HZ> C.2150 HZJ (- 12 z< (-JBA' >·a v ) !C 3= LM224 C R 48•1N <;l٘3 B "IO P I N 4 - ٔV PIN I I - GN D ʟʠ- -.Qِ_٦!: .D8 2 u_!._ 0 1 2 1 1 12= 2N543'3 ALL RES 1141'1 EXCEPT ʔ ' C I I . 1 5 u f .18 uf Q 3 13;15- 17= IN2222A Rl718 = 2W C / 3 . Q 47uf -056vf ّ ::. CONNٗCTED TO PIN 10 ON 0'4' = 2N2907 R20,21 : 3W Cy;- . lO u! .IT ut F'C B ,0 z tNT CON"S CRI-1 1)ٕ111ٖٗ40-47=1N4148 R 3,= ّ2 W (17 • 47uf" • ·O S buf O I B 4.8 Sil8 - · CRI2u\NSOE.I 11 8 5,8 6 = I w V I 4 6 V T 42-V l" ll i$=IN

T A l l R l < R39 A40 0 R21 49 . 9K ‰ Š t;u 1 F 1 ʕ l U58 7 - 6 A27 R28 O SOt< + 5 : .-- R29 1 . 3K r-- R30 ‹OK 50 1< I I 83 100 A 1 7 ! A 1 8 411. 991< 75 . 01< R22 3011< R 1 "'i ;·h5 R 1 9 T 1501< .J '1 R 1 6 I 'g e 100K -r-- C I S I --+--6p 1 TP2 I f+1.2'll " TO TTA {'} _.._ * R37 0 AEF COY) R44 49 . 91< F=I ILOT WIRE {+) ʭ== 9 . R54 50K . , I D H 0 ʑ II:·:, ,, . RiO< ʒ ---- : <0 َ ُU l ' H><> ------Œr--------------------------------------------------------- 5 0 1 A2 TO T T4 C+J a (+) I I 60011 ' 1/2W 2 (-) _ c , OSuF lKV Rl ' 1/2W C2 r 5uF I '" 48V 1 2Ž0 U O 6 9K 1 10V l W • C3 AS sauF :no 15011 5J C5 . 033uF 10011 02 lOV t R3 ʖ 220 I I N O T E : 0 I 48V t---o 0 125/ 1 1011 l. 1 4 C 1 5 C 1 6 C 1 7 C 1 8 G 3 G 4 0 4 7 t J F 0 56uF . 0 4 7 u F 0 5 6 u F 1 O t I F . 1 2 u F . 1 5 u F . 1 fl u F . 0 6 B u F . 0 8 2 u F 1 . U N L E S S O T H E R W I S E S P E C I F I E D A L L R E S I S T O R S i ' 2 A R E I N O H M S * C O N N E C T E D A N D A R E 1 / 4 T O P I N 1 0 O N C O N N E C T I O NS 0 1 8 4 8 8 7 1 6 W . P C B N O 2 I N T E R N A L I G\ m I Ž "' "' ... N ww . ElectricalPartManuals . co

0 0 01 Ũ a  tD 00 0'1 - 0'1 C'l I IC4, S:LM224 Q;t. pc.ؾ PIN 4 +V, PIN t Gl\0 G '-.b.7. ٍ _ 1 V : ;i. N 222GA R41 200K a 5 6 ;zf-:2907 ;;=; [ ..... -Ք Օ"'}:..· _,...,"""" Ek-..--l =,.. 1 -'"T"11 -6-0,..., C R.I9 - 30 36 - 39 4m 50 • 1N41 48 ً 4 7 E2Q CR21 , CR22 iUT'" ص C R 31 = IN754A ' ' IM I M ....- HŦ $%& b'£7( )*+':'!. EXCEPT { | - 8 (f:- o - 7 y z • • RnO '-- I + C l 9 5 + R-'4 200K IC4 ط Ɛ'!_( R SʐC 5 !CS ICS 510K T P I RJ- 3 ţ Jru R4etJ ũ:Ū::r: Ţ 'l R25 R27 0 200K I ZOOK I lOOK gti\,J . I I - I ؽOIK 150K I ش .B.a R42 R 4 & R '- 9 R 5 2 R 53 lllK 1 5 . BK ʒ- _L CI4 200K iOfK 200K 2՜՝ I՞ .!.:..1.:./K R 5 7 R 59 ISO>. 49.9K riO Jill Jl.ll_ i5.8K ir8K ,-----,,.,..ٌ-i R64 tl.OS. ( R6G_ 1 س ;:.K t(l2 š I m 4fi<"' CR39 2.7 K I I?- 4.7K b t _(12} 4ŧ .--. غ Lra"s ʑ 01 Lfs cٟ:"'.L _8 L--f* ـ٧---ف ( I iD6Bu .OS2 u f (pj,z' CR35 CR34 C l 2 . 1 5 uf .1 8 u f o r RED 11r """ GND. RED ' ( 1 4 . 0 4 7 u f .o :.& u f .= t ي :.10 u f . 1 2 u f :o s .. y '{ 2 y -- -- ه y ,y (+ 12VIy 6 PILOT WIRE(-) c1 e 1.0'-1 u . o ; c u و (- ' 2.\,1 ) ض REF ع \, ._, T T ( 0 VJ " 0C ": UC ظ I ىNO ػ I *=CONNECTED TO PIN 10 O N P. C. a NO.I I N T. CONNw • 01 8 4 8 8 7 1 2 L _ - _ _ _ _ _ _ - - - L _ _ _ _ _ _ _ _ L _ _ _ _ _ _ _ _ 1. _ _ _ _ _ : 6 m I 0\ Ul Ul - ‘ ww . ElectricalPartManuals . co

... o e . -- oo .-+ Ÿ 0 CXI QJ 7 a. V1 C\ I ) (-o-) BATT. I< ( 7 cR'"ʏTos vf + I Cl 30uf _.Rl_ IBOK IC 1 2= LA!>ISOS rc.3 = L M 22 4 0 1,2)•12 = 2N34 39 0 7 1 3 J S - J 7:2.N 22224 Q e ••'=2N29o7 C –f- 10 1 3 14 17 182.9 40-47: IN4 147 C — 12,3S ˜ I ™ 50&'1 _- ( R I 5 : 1 N '; 6 5 8 C R 31 : 1 N 7 5 4 B t P .. e = • ن '> s ! e IC .3, P I N 4 - f V, PIN 1 1 - G N O. I T l 4 3 ALL RE5 1/4 1< f. XCEI?T Rl 7 = 2W R 3. e9 = 'tzW R 8 5 86 : J W 6 = rRorՒ R66 4.7K 'م I 2 > 6 ( t 12 V ) I "''V" :p- I ) ) 9 - I I PILOT WiRECtl PILOT "IR(H I -·-"J I I > > 1 T P 3 I T ,, I ' .,, 3,40K¥ I I TO uc i I UNI T CR29 CRرI C'\ m " I en \II \II - N ww . ElectricalPartManuals . co

! 9 ! ! I I+!2VI ) 6 l?@----A :;·uv CIO !UF A l 4 0 L____ A 2 1 499.i..C l 1 "1'tuF A28 300 R I B 7 5 . 0K A22 I A23 301K I 60 . 4K .J... ;feu BA "'"'" .. j "1 . . ' _L C 15 A 1 9 ...,... 7 5 . OK R24 I A25 I G 75 . OK 1 37 4K; : :: 7 j-oT P I oog C: a ƍD ;+ \D o· c­ ::l 'Q ""0 .... n V1 g:, W . o .... ...., - · 0'1 ::l U) "' 0 ""0- )> - _. :;, IV ʎ )> .., _ :;, ::0 ¤ tt) n Ż 0 )> ʍ - :;, g:, tf) 0  ż 0 C..::l _ Ill c..- tf) 0 :;, .., .-+ "'0 -· .., .... _ . '< ٞ . . .... 0  .... ("\  :;· c;x, n oo S . ...., .... W ta c o C\ 01 · a !+! 2 (-) ' r-- I R31 ʐ 0 t__n"·· 499 ʌ R54 300 A 53 r;A 0 20K 027 AS I G5 G6 AEO 680 L T A65 01 R2 C l . O!iuF t!

C il l2*-1b5 uf + Cl 30uf R.3 0 180K T l d 3 (t 1.2. \/ ) :lo> 6 r------------- ' I!CilՊ ZՉ,--,r----------------- خ ------------Ո T Oʃ Tʂ !ʁ (+ʀ l Ş COIN"CT 1 '--T"r"' _ •oo .n. > 4 T P I ՋI > Jo 1516Jl1 C R 29 TO l.I C C R31 ف ڍ=r----1---1R 7 B!_ 10Jl 2 < JOn. HBATT. I C I, 2 ʏ LASI SOS ALL RES 114 W E XCEPT ICŸ : LM224 Rl718 - 2 W Qi 2 1 1 1 2 : 2 N 34 39 R20 21 - 3 W Qձ--4_.1QIŸ)5-17= 2N2222A R 3'- 112 W Q 5 8 1 4 = 2N2907 RS 5 86 - J W c R I-I [¤ I ¡l"(.J S,2¢24_.27_2£ 6 =' TRIM C II I Z 3ʈ5 -ʇJ:ʆʅ:ʄ 4 8 I C 3. PI N 4 - + V, P I N I I -GN O C R I S ʎ I N 9 55 8 C R31 :: IN7548 C R48 : IN%39 ) RSO "' 47K C R37 CR27 UNIT TO TT U N I T > B .1 2 uf' 1.1 ق mf I.IOmf' G-::.(د0H2' G-4 t€<'tl, ... -) , l t-mf . I Smf :777--¥':Ս-":f-4";.Վ,=,:!'---¥.0".,Տ Ր G n;f , ʉ ʊ 7m ك o f .::: U T ) .0%uf I.05ذmfl.C:A 7mf' 4 6-V I 'l_A V I 4 l\ V l rC- 12SVI I J O - J2SV I 1 10 - 125V I IJ0-12SV G\ m I 0\ V'l V'l ..A IV ww . ElectricalPartManuals . co

:::l iD VI - ., - )> ­ - 9 N tl) tD , - ::J :::0. m n Շ 0 )> ::J - ::J tD n> O !l, Q) - · , o Q..:::l - VI a.._ n> o ::J , Ց ., r+ ::::!. ':c: ::J O r+ -a  00 V'l n tD -· oa r; -...lc: W -· o r+ G"' tD , o - Q) a. B r I t•> I osl os r 07 U3 -------11 3 2 f---,-.-- ^ 3 d 6 DB J A31 i 200K rqr:: ɿ R54 300 r;D + 1 2 A 53 0 0 ---T A60 019 Vv I __. 47K \ 7 h 5 - RE 7K 01 A2 ث 600V 1 1/2W I I ح A7 C 1 0 1uF _c:- .... 1uF 0 1 5 A45 4 7 K A 1 4 0 A 2 1 499_LC 1 1 11uF L__ ,-- A28 3 0 0 A30 A K 550 I I A32 40 . 2K ة ..Lct9 R46 l R42 T 1UF 1M 200K R_=i IZ 470K 1 0 . 0K A 59 3 40K ..l_ C7 · 033uF 100V C6 · 033uF I I . -- I ɽ 100V A22 301K A 1 B 75 . OK A23 60 . 4K C 1 6 1 0 0 T Q ITA (+) ) 4 C 1 4 A 1 9 7 5 . OK C 1 5 f--oTP 1 . uK 1 A34 23 . 7 K ( USB TP2 PILOT WIRE (+} .J., D16 l A4B l A49 ج S 150 S 22K 0 1 7 I 0 0 0 A33 2 t . OK R47 j Q3 680 e 028 ـ ɾ YELLOW 021 *--- A64 47K A 50 3-TEAM 2-TEAM 5. 49K A5 1 42 . 2K A 57 1 0 0 Ty 0 1 8 T O UC UNIT 020 ت j__ 022 T C 1 4 C 15 C 1 6 PILOT WIRE (-) A3B 0 5 TO TTA (-) A36 1 0 0 TO UC UNIT A70 B 0 TO TT UNIT G 7 (.; A . 0 4 7 u F 0 5 6 u F 0 4 7 u F O <=i Fi 1 1 F 1 0 u F 1 ;::>ti F . 1 R 1 F r·· 1KV I I I [ A4 ..L cs 4. 7K 1W T . 033uF tOOV C 1 7 . 1 5u F 2 (-) A 1 1 1 / 2W 1 U N L E S S O T H E R w i S E S P E C I F I E D A L L R E S I S T O R S A R E I N O H M S A N D A R E 1 / 4 W Յ m "' I 0\ "' "' ..a ,.., ww . ElectricalPartManuals . co

- 1 68MM ŝI' ,a 1 0 . 3 1 2 GEK-65512 PA NEL LOCAT I ON SEM I - FLUSH SURFACE >MT G . MTG W I ,Ŝ 9 . 8 75 25 0MM 5/ 1 6- 1 8 S TUDS SURFACE M TG . - 1 9 1 7 1 5 1 3 1 1 ·: 0 0 0 0 0 0 0 0 0 0 20 1 8 1 6 1 4 1 2 2 6 1 MM < 4 > 1 0 -32 X 3/8 MTG . SCREW'S STUD NUMBER I NG o' 1 / 4 DR I LL 4 HOLES 6MM: GLASS .)Q 1 . 1 2 5 - _ I 29MM I ډ----+-i'B- 2 . 78 1 7 1 MM 5 . 562T 1 42MM ' . 2 1 8 I 5MM ---1 I If_ I - lt:- -ɼ- - - CUTUUT 5 . 0 0 0 1 27MM _ _L 1 0 . 0 0 0 ; t_:r Մ 2 . 8 43 - ' 7 2M M 5 . 687 1 44MM I..- . 2 1 8 I - 5MM I I PANEL_/j I PANEL DR I LL I NG F OR SEM I -FLUSH MOUNT I NG FRONT V I EW CA TYP I CAL D I M . . 7 1 8 1 8MM 3 . 0 76MM 9 7 5 3 1 0 0 0 0 0 0 0 0 0 0 1 0 8 6 4 2 ____._ 5 . 25 1 33MM 3/4 DR I LL 2 0 HOLES 1 9MM BACK V I EYI CUTOUT S MAY REPLACE DR I LLED HOL E S 4 . 87 5 1 23MM 1 . 7Y 1 [ 46Mg PANEL DR I LL I N G FOR SURF ACE MOU NT ING .ب''· FRONT V I EW' 5/ 1 6- 1 8 STUD I NCHE S MM V I EW SHOW I NG ASSEMBLY OF HARDWARE FOR SURFACE MTG . ON STEEL PANELS Figure 11 (006209272 [7]) Outline and Panel Drilling 36 www . ElectricalPartManuals . com

VOLTA'E 5 ..... ........ r---. 1!- 4 8 VOLT CURVE !""-N 4 U) 0 z 0 td 1/) 3 _J _J - r---.. r-- -... r-.. !'--_ t--1--1--t-- :rl 2 5 VOLT CURV E - !'--- 1--r-,_ Ll -ծ--.._ ...._ r-- Ղ ,___ " 'Ճ' I w " 2 1- ا z - 1- <( 0:: UJ 0.. 0 .... 0 1 10 120 80 90 100 70 P ERC E NT OF DC RATED VOLTAGE Figure 1 2 (0275A3814-0) TI A Operating Time Versus Supply Voltage 37 www . ElectricalPartManuals . com

CONTROL VOLTAGE 5 8 TEST PLUG I N SERTED I N BOT TO M BLO CK Figure 1 5 (0275A381 5-1) Test Plug Connections for SPA 1 1A and 1 1 B UC and OC Acceptance Test 40 0 www . ElectricalPartManuals . com

I N SE RTED I N TO P BLOCK TEST P LUG INSE RTED IN BOT TOM BLOCK 1@ 2(2) GEK-65512 3@ 5 4 b@ RATED DC CON TROL C+ > VOLTAGE C-> g@ s@ 10‡) Figure 1 6 (0275A381 6-1) Test Plug Connections for SPA 1 1 A and 1 1 8 GND Acceptance Test 41 www . ElectricalPartManuals . com

T EST PL UG I NSE R TED I N TOP B LO C K 1 2@ 14@ 15@ IS@ 20 I @ 3@ 5 7 9@ TES T P L U G I N S E RT E D IN SOT TO M BLO C K 2@ 6@ 10@ 4 ,., Figure 1 7 0275A381 7-0) Test Plug Connections for SPA 1 1 B Transfer Trip Acceptance Test 42 www . ElectricalPartManuals . com

'------/ IN SERTED IN BOTTOM BLOC K 12 @ GEK-65512 (tJ RATED DC (-) CONTROL , VOLTAGE 3@ 5 7 4 9@ 10@ (+) Figure 1 8 ((027SA381 8-1) Test Plug Connections for SPA 1 2A and 1 28 UC Acceptance Test T E 5T PLUG INS ERT E D IN TOP BLOCK TEST PLUG INSERTED I N BOTTOM BLOCK I@ z@ 3@ 9@ 1 I 4 6@ 10@ Figure 1 9 (0275A3819-0) Test Plug Connections for SPA 1 28 Transfer Trip Acceptance Test 43 www . ElectricalPartManuals . com

.. . .. c e v I I I GEK-65512 L4-f ԽԾ ؐ . 3 ɹ ɺɻ "' ؓ ؔ .... "' f+ji+f++-H-+l ;; Լ * ع Ժ .. ؒ ! ! f+jl+l+t-H-+l Ի ;.   f+j++++l Z 'մwյնշ 111 ؕ .L"' J..• !,. 1• ..1.ؼ 1':! ., ,_ T:;; Tآ Tأ tؤ Tإ Tئ e. !':::' lؿ l';. L';!, !ؚ l.= lؙ L rؾ f, "- T.,. T= Tؽ ԿՀՁ ؛15 ؜,, ؝؞£ ' T ظ . - ' c ' . . : ' " c c 2 ؠ ء ʌ O w - · ʋ :: IP :, z o Z ʍ w e ؟ .: c ɸ غ ػ Թ c ؖ § ؗ ؘ !! ؑ " L z-t JS ' " , 0 " , , L' . Fi}ure 22 (01 3802458-3) Elementary System Diagram for Pilot Wire Relaying and Two Dtrection Transfer Trip on Two Terminal Lines Using SPD1 1A, SPA 1 1 B and SPA 1 2B Relays 46 www . ElectricalPartManuals . com

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GE Technology Center Protection and Control 205 Great Vall ey Parkway Malvern, Pennsylvania 1 9355- 1 337 www . ElectricalPartManuals . com