GE SPA11A Instructions Manual Download

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Summary of Contents for SPA11A

Page 1: ...GEK 65512F INSTRUCTIONS STATIC PILOT WIRE MONITORING RELAY TYPES SPA11A SPA11B SPA12A SPA12B GE Protection and Control 205 Great Valley Parkway Malvern PA 19355 1337 Courtesy of NationalSwitchgear com ...

Page 2: ...RCURRENT DETECTION SPA11A AND 11B OVERCURRENT DETECTION SPA11A AND 11B GROUND DETECTION SPA11A AND 11B TRANSFER TRIP SPA11B RECEIVING END UNDERCURRENT DETECTION SPA12A AND 12B TRANSFER TRIP SPA12B DIELECTRIC TESTS HIGH POTENTIAL TESTS INTRODUCTION HIPOT TESTS RESTORING RELAY TO SERVICE INSTALLATION PROCEDURE SETTING THE TAP OF THE TARGET SEAL IN UNIT SPA11B AND 12B SUPPLY VOLTAGE SETTING TERMINAL ...

Page 3: ...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 fo...

Page 4: ...tions 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 t...

Page 5: ...DIELECTRIC STRENGTH AC HIGH POTENTIALTEST 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 a...

Page 6: ...ted 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 SPA11A or SPA11B The receiving end moni...

Page 7: ...r 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 rec...

Page 8: ...p signal is produced by energizing the coil of the TTA unit through an external contact When the TTA 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 TT unit in the local and remote SPA relays The TT output contact connected between studs 1 and 11 is provided...

Page 9: ...e 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 TABLE VI DC BURDENS WITH TTA ENERGIZED 48 V 110 V 125 V 48 V 110 V 125 V SPA11A SPA11B SPA12A SPA12B 60 ma 60 ma 60 ma 60 ma 25 ma 25 ma 25 ma 2...

Page 10: ...o or three terminal applications and the receiving end relays SPA12A and 12B have no OC and GND indicator LEDs 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 st...

Page 11: ...he receiving end relays SPA12A 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 Vlll A P...

Page 12: ...ng 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...

Page 13: ... 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 shoul...

Page 14: ... 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 SPA11A and 11B Refer to te...

Page 15: ...resistor UC LED should be off TransferTrip SPA12B Referto 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 ...

Page 16: ...ied 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...

Page 17: ...CE TESTS contains all the tests that the user at his discretion may want to perform as part of the installation procedure SETTING THE TAP OF THE TARGET SEAL IN UNIT SPAIIBand 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 the left contact plate and transfer it to the desired tap position in the ri...

Page 18: ...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 Exa...

Page 19: ...conditions Usinq 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 becom...

Page 20: ... 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 training which must be considered before field repairs are attempted W...

Page 21: ...2A Rev A Board Identity 0184B8730 G Internal Connections for printed circuit board in position PCB 1 in SPA12B No rev letter Board Identity 0184B8613 G Internal Connections for printed circuit board in position PCB 1 in SPA12B Rev A Board Identity 0184B8730 G Outline and Panel Drilling TTA Operating Time Versus Supply Voltage Auxiliary Brush and Shorting Bar Front View Photograph of SPA11B Relay w...

Page 22: ...3 0 O 4 4 0 O OC UC GND 05 50 6 GO O 70 07 DETECTION BD INT CONNS 0I 84B87I 7 8 0 0 8 oio IOO UC C8 I lOuf XOC GND X X X X _x xr T XT XT C56 C39 C40 C4I C 32 C35 V V V V V N V A V A 5 9 SHORT FINGER OC J cx OC J o I 6 4 8 10 vi L D C J SURGE I up LOP IN GROUNDI WIRE C 26 T0 C 33 36 39 05uf C40 41 _ 005uf I LSPDJ LOCKOUT Figure 1 0275A3240 0 Internal Connections Diagram for Type SPA11A Relay 22 Cou...

Page 23: ...NT CONNS 018466712 2 2 P O O 3 30 O 4 40 O i 1 TT UC OC GND OS 50 6 60 O 70 07 So o R E V TEB M 90 09 4 rd i IOO oio T SI TTA UC 5 TTA C 8 TT c lOuf 1 OC GND So x N 1 5 IA P o X X X m X X XT XT X X T X T LU T cc l i u C2S C34 C35 C39 C36 css C40 C 32 C4I j V V v V V V V V V V V V A o 0 o N c CL 3 5 9 7 oJ SHORT FINGER O Oc CX O Oc T J 6 2 8 4 10 cc OJ i TT i OC J SURGE i LPILOT I IN GROUND WIRE C ...

Page 24: ...0 50 60 70 UC 80 ICO I uc C 8 H I lOuf I I I _L i T _T r T T T C36 C39 C32 C 33 C40 C4I V v V V V V V v O 4 5 7 9 SHORT FINGER CK o 0 f i Of 1 8 1 _ D CJ SURGE I LPILOTJ IN GROUND WIRE C 28 9 32 3 6 9 05uf C40 4l 005uf I 10 6 4 L SPDJ LOCKOUT J Figure 3 0275A3242 0 Internal Connections Diagram for Type SPA12A Relay 24 Courtesy of NationalSwitchgear com ...

Page 25: ...TTA 4 TT 6 0 J TT UC 70 1 i s 8 0 INPUT 90 P R E R E i J L A T O R wHE N OSE C I0O u c C 8 TTA H H T IOu TT 1 rlh 1 I I X X J XT T LX X X T C25 C 34 C35 C 36 C39 C 33 C 4 I C 32 C40 Y V V V V V V V V A V V Y T T CZ c j Octo O s v 3 7 9 IO O SHORT a o CY Of L O C J SURGE LpiLOT l IN GROUND WIRE C24 _S 8A 32_T0 39 _ 05ujf _ C 40 4I OOSufJ o Of OJ FINGER j 8 10 2 6 4 L TT LSPD i LOCKOUT V 2 O AUX CD ...

Page 26: ...i I62K IOOKI R 9Q n CR48 100K NJ C24 a 470 CRI5 00 pfO o C 25 o Ql C 23 3 RIO T470 o CD RI 7 47CA 047uf V 49 9K CD to17 R92 k I00i 9 o 0 2 gion Q 0 m TPS CR16 TELLOW RI 2 R85 Qlfc D 3 2 r 3 0 i R 7 K J M OiiT Oa R 9l R86 E A 5I0A CR 3 CR2 yiQfl 100 510 A 9 12V 2 HBATT 61 60 HZ 02C 50 HZ CR46 IN963 9 ALL RES 4 W EXCEPT R 7 2 w R J l 2 w R95 86 l W A TRIM ICJ PIN 4 V PIN l l GNQ I C y 2 LASI505 IC 3...

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Page 36: ...123MM O o5 000 127MM 5 8 DRILL 2 HOLES 15MM 2 781 71MM 1 75 46MM I r 3 50 88MM I CUTtlUT t 9 75 247MM 5 562 142MM T 1 0 0 0 0 254MM I 4 50 114MM joa o 5 o I I 1 468 37MM 9 1 i 718 18MM 2 50 2 843 7 2MM 6MM 218 218 500 12MM TYPICAL 5 25 5MM 5MM 133MM 5 687 PANEL 144MM 3 4 DRILL 20 HDLES 19MM 11 PANEL DRILLING FOR SURFACE MOUNTING FRONT VIEW PANEL DRILLING FOR SEMI FLUSH MOUNTING FRONT VIEW CA 5 16 ...

Page 37: ...F TTA UNIT vj SUPPLY VOLTAGE 5 4 o z o u UJ 5C 3 J z i UJ 2 H O z oc UJ I a O 0 120 no 80 90 100 70 PERCENT OF DC RATED V0LTA6E Figure 12 0275A3814 0 TTA Operating Time Versus Supply Voltage 37 Courtesy of NationalSwitchgear com ...

Page 38: ... CO c a UJ oo o fSJ tn o to VO m c X to tn Q 00 tn rsj CD c AUXILIARY BRUSH TERMINAL BLOCK SHORTING BAR NOTE AFTER ENGAGING AUXILIARY BRUSH CONNECTING PLUG TRAVELS 1 4 INCH BEFORE ENGAGING THE MAIN BRUSH ON THE TERMINAL BLOCK Q 3 Q c O 2 3 CO CD Q ...

Page 39: ...l inUnit 6NC u c LED Indicators oc POWER 3 TERM TT Unit 2 3 Terminal Selector Pin SPA12A 12B Only 2 TERM i i Nameplate TTA Unit Undercurrent Unit Ground Unit Figure 14 8043483A Front View Photograph of SPA11B Relay with Nameplate Attached 39 Courtesy of NationalSwitchgear com ...

Page 40: ... J RATED DC r CONTROL i VOLTAGE 3 5 O 7 9 2 4 10 TEST PLUG INSERTED IN BOTTOM BLOCK Figure 15 0275A3815 1 Test Plug Connections for SPA11A and 11B UC and OC Acceptance Test 40 Courtesy of NationalSwitchgear com ...

Page 41: ...INSERTED IN TOP BLOCK I6 O 5 7 i 0 TEST PLUG INSERTED IN BOTTOM BLOCK 4 O RATED DC CO NTROL H VOLTAGE Figure 16 0275A3816 1 Test Plug Connections for SPA11A and 11B GND Acceptance Test 41 Courtesy of NationalSwitchgear com ...

Page 42: ...NSERTED IN TOP BLOCK IS I6 I 4 DC V SUPPLY 7 O 5 O 9 3 TEST PLUG INSERTED IN BOTTOM BLOCK 2 8 4 6 I Figure 17 0275A3817 0 Test Plug Connections for SPA11B Transfer Trip Acceptance Test 42 Courtesy of NationalSwitchgear com ...

Page 43: ...ctions for SPA12A and 12B UC Acceptance Test is I 5 O I7 O I3 O U O TEST PLUG INSERTED IN TOP BLOCK is O zo O IB O 14 o I2 O A Dc W SUPPLY r i 5 6 TEST PLUG INSERTED IN BOTTOM BLOCK lO O 6 2 0 4 j 24V OC 0 SUPPLY CH Figure 19 0275A3819 0 Test Plug Connections for SPA12B Transfer Trip Acceptance Test 43 Courtesy of NationalSwitchgear com ...

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Page 45: ...ONNS TEST SW C CONNS NITER m TRAP TRARSP 70 NITER Ml SPAMA MONITOR R L TRANSMIT NO UC UNPI CVRREN7 u OC 0 1 CURRENT UNIT KMM MTECTON UNIT PS POWER SUPPLY A WOWITOR RILWr RECEIVE INN uc WWMR CURRENT UNIT PS POwEN SUPPLY P4RWN0 tJISTOA fit NOTE J SEE NOTE 7 v irHi SEE NOTE 2 f 7 5c 4 4 i SEE NOTE 2 3 it r i i 0 TT 7 TC ic t i OPEN UN FDN THREE TERU MAL LINES NOTE 3 THESE CAPACITORS ANO RESISTORS REQ...

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Page 48: ...å å å å 3RZHU 0DQDJHPHQW 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 www ge com indsys pm Courtesy of NationalSwitchgear com ...

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