GE POWER/VAC GEK 86132A Page 44 Instructions Manual Download

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Summary of Contents for POWER/VAC GEK 86132A

Page 1: ...GEK 8 6 132B SUPERSEDES GEK 86 32A INSTRUCTIONS POWER VAC VACUUM CIRCUIT BREAKER WITH ML 18 MECHANISM v Courtesy of NationalSwitchgear com ...

Page 2: ...ring Gag Interlock 1 1 1 2 2 2 2 2 2 2 3 3 3 3 3 3 5 OPERATION 5 1 Close Spring Charging 5 2 Closing Operation 5 3 Opening Operation 5 4 Trip Free Operation 6 CONTROL CIRCUIT 7 MECHANICAL CHECKING AND SLOW CLOSING 7 1 Visual Inspection 7 2 Closing Spring Charging 7 3 Closing Spring Gag 7 4 Slow ClosiiVg 7 5 Gag Plate Removal 8 DIMENSIONAL CHECKS 8 1 Primary Contact Erosion 8 2 Spring Wipe 8 3 Cont...

Page 3: ...ND REPLACEMENT 14 1 General 14 2 Replacement of Interrupter Assemblies 14 3 Primary Disconnect Fingers 14 4 Mechanism 14 5 Control Switches 11 11 11 12 12 A 12 4 4 4 4 4 I 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 14 6 Trip Coil Replacement 14 7 Closing Coil Replacement 14 8 Auxiliary Switch Replacement 14 9 Motor Replacement 14 10 Y 12 vi V 12 12 13 Rejay R...

Page 4: ...EAKER LEFT FRONT VIEW FIGURE 12 POWER VAC BREAKER RIGHT REAR VIEW FIGURE 13 TRIP COIL AND LINKAGE FIGURE 14 CLOSE COIL LINKAGE FIGURE 15 BOTTOM VIEW OF ML 18 MECHANISM FIGURE 16 CONTACT GAP ADJUSTMENT FIGURE 17 SPRING DISCHARGE INTERLOCK FIGURE 18 SAMPLE OPERATING SPEED GRAPHS FIGURE 19 FLEX CABLE CONNECTION FIGURE 20 NEGATIVE INTERLOCK FIGURE C CLOSE COIL PLUNGER GAP FIGURE G CONTACT GAP FIGURE L...

Page 5: ...ety program These recommendations are not in tended to supplant the user s responsibility for devising a completesafety program and shall not beconsidered assuch They are rather suggestions to cover the more important aspects of personnel safety related to circuit breakers G E neither condones nor assumes any responsibility for user practices which deviate from these recommendations 1 1 1 GENERAL ...

Page 6: ... an examination should be made for any damage sustained in transit If injury or rough handling is evident a claim should be filed im mediately with the transportation company and the nearest GE Sales Office should be notified It is expected that due care will be exercised during the unpacking and installation of breakersso that nodamage will occur from careless or rough handling or from exposure t...

Page 7: ...lad 4 2 2 CLOSING SPRING DISCHARGE INTERLOCK This interlock 4 Fig 12 prevents racking into or out of the metalclad compartment a breaker that has the closing spring charged This action is accomplished by a roller on the right side of the breaker mechanism which contacts the racking mechanism and discharges the closing spring unless the breaker is in the DISCONNECT TEST position or the CONNECT posi...

Page 8: ...ing eccentric on the output shaft of the gear motor driving pivoted charging arms 4 view C that oscillate about the centerline of a ratchet wheel 5 view C A driving pawl 6 view C mounted within the chargingarms oscillates with the charging arms Starting from its rear most position as the charging arms rotate forward a spring forces engagement of the driving pawl with a tooth on the ratchet wheel T...

Page 9: ...coil circuit is established through two normally closed 52Y relay contacts and the latch checking switch LCS if the trip latch is reset An auxiliaryswitch contact 52b isalso inseries with theclosecoil and closes when the breaker is open and opens when the breaker is closed During a close operation cam rotation closes the SM LS contact allowing the 52Y relay to be energized opening its contacts in ...

Page 10: ...sult is the amount of wipe oneach individual pole The wipe dimension W is to be greater than 0 075 inch Adjustment is not required until wipe is 0 075 inch or less If adjustment is required see WIPE ADJUSTMENT in MECHANICAL ADJUST MENTS section The ML 18 mechanism is furnished with very low gradient wipe springs so that adjustment is not a precision operation and considerable loss of wipe can be t...

Page 11: ... the circuit breaker in an open and spring discharged Condition after ohecks are complete and refer to metalclad instruction book GEK 39672 before inserting the circuit breaker intoa metalclad unit Reinstall thefront cover if it has been removed t 9 4 VACUUM INTERRUPTER INTEGRITY TEST 9 2 HIGH POTENTIAL TEST If high potential tests tocheck the integrity of the insulation are required the A C high ...

Page 12: ...tall the racking crank The racking crank should be blocked by the POSITIVE INTERLOCK Trip the breaker and install the racking crank and rack the breaker toward the connected position five 5 complete turns During the five turns usually between the third and fourth turns the spring discharge interlock will discharge the closing spring The contacts of the circuit breaker should remain open If adjustm...

Page 13: ...be performed 1 Contact erosion check 2 Wipe and gap check 3 Vacuum interrupter integrity test TROUBLE REPORTING Although all reputable manufacturers design their prod ucts to perform satisfactorily with a minimum of problems the IEEE Switchgear Committee an organization of both users and manufactures recognized the need for a common trouble reporting format A reproducible copy of this form is incl...

Page 14: ...ontact rod of the vacuum interrupter With the breaker open wipe the lubricant off the rod and examine the silver surface The rod should have a burnished appearance without copper appearing through the silver If copper is visible at more than one location per pole orif the silver plating is torn theinterrupter assembly should be replaced Relubricate movable contact rod with 0282 A2048P009 grease 8 ...

Page 15: ...ve the old pote assembly 2 Set the new pole assembly in place and install the four mounting bolts Set the pole assembly so that the distance between the primary studs and the studs on the adjacent pole are ten 10 inohes center line to center line 13 OPENING AND CLOSING SPEED The opening speed is modified by moving the speed adjusting nuts on the opening spring assemblies A change in the opening sp...

Page 16: ...ning ring from the close linkage pivot pin 17 Fig 15 and disconnect the linkage Remove the closing coil and housing 6 Fig 15 Cut the leads to the closing coll and remove the coil Reassemble the coil and housing with arma ture and butt splice the new coil into the wiring harness Reassemble linkage and spring Readjust the closing coil armature travel in accordance with instructionsin MECHAN ICAL ADJ...

Page 17: ...d reference number if listed and description of each part ordered and the parts bulletin number 3 Standard hardware such as screws bolts nuts washers etc is not listed in this bulletin Such items should be purchased locally 4 For prices or information on parts not listed in the Renewal Parts Bulletin refer to the nearest GE office 16 2 WIPE ADJUSTMENT Wipe is the additional compression of a preloa...

Page 18: ...AND SHOULD NOT BE ROUTINELY ADJUSTED IN THE FIELD The adjustment for this interlock is as follows See Fig 17 The breaker should be open with the closing spring charged 1 Back off 1 4 inch adjusting screw 2 While holding roller at 0 995 inch dim advance adjusting screw to just touch interlock lever 3 Check that springdischarges with roller at0 561 inchmin dim 4 Close latch must reset as indicated 1...

Page 19: ...FIGURE 1 RATING INTERFERENCE PLATE M 1 V 86132B 2 1 Rating Interference Plate 2 Lifting Locations 3 4 dia hole at all four corners v t f 15 Courtesy of NationalSwitchgear com ...

Page 20: ...ng gag access 10 Open Close indicator FIGURE 3 FRONT VIEW OF POWER VAC BREAKER WITHOUT FRONT COVER 86132B 4 1 Upper interrupter connection 2 Interrupter support 3 Operating rod 4 Racking arm 5 Compartment track rollers 6 Manual trip button 7 Open Close indicator 8 Counter 9 Spring charge indicator 10 Manual charge lever 11 Manual close button 12 Handle to connect secondary disconnects in test posi...

Page 21: ...plate 2 Manual charging lever FIGURE 5 MANUAL CHARGING 4 HMHBBTJ A o 5 r o 0 1 i fp 8II I 2 o o BREAKER GRASP TOP OR BOTTOM TOPUU c r 86132B 5 V V i 1 Manual charging handle 2 Closing spring gag hole shown in closed position 17 Courtesy of NationalSwitchgear com ...

Page 22: ...NG DISCHARGED v i t 3 2 i A FRAME T I OUTPUT CRANK 2 JACKSHAFT 3 TRIP LATCH 4 TRIP ROLLER 5 CLOSING ROLLER b TRIP LINK 7a CLOSING TOGGLE 7b CLOSING TOGGLE g PROP q CLOSING CAM 10 PROP SPRING 11 LINKAGE RETURN SPRING b Ke NOTE SHADING INDICATES FIXED PIVOTS V L B BREAKER OPEN SPRING CHARGED 18 Courtesy of NationalSwitchgear com ...

Page 23: ...FIGURE 6 CONTD v i 1 i FRAME V C BREAKER CLOSED SPRING DISCHARGED i FRAME I i b j D BREAKER CLOSED SPRING CHARGED 19 Courtesy of NationalSwitchgear com ...

Page 24: ...6 5 Erosion disk Shown in closed position with no contact erosion 6 Coupling clamp 1 Interrupter support 2 Operating rod insulator 3 Wipe spring 4 Erosion indicator i A DETAIL A DISK C EROSION INDICATOR LSCT5 i i i i L 1 i v 20 Courtesy of NationalSwitchgear com ...

Page 25: ... i 9 1 v 8 7 1 6 i 5 3 86132B 6 1 Wipe spring 2 Wipe indicator 3 Erosion disk 4 Lock nut 5 Lock washer 6 Hexagon projection 7 Operating rod insulator 8 Couplingtdamp 9 Clamp screws 10 Interrupter movable contact rod 21 Courtesy of NationalSwitchgear com ...

Page 26: ... 13 Cross shaft 14 Bell cranks 15 Opening springs 16 Wipe springs 17 Auxiliary switch 18 Trip solenoid 19 Trip latch 20 Over travel stop 21 Latch check switch 22 Gear motor 23 Manual trip button 1 Close spring 2 Cam shaft 3 Manual charge 4 Charging arms 5 Ratchet wheel 6 Driving pawl 7 One way clutch 8 Close latch 9 Close cam 10 Close roller 11 Prop A Contd on next page 22 Courtesy of NationalSwit...

Page 27: ...t o PARTIAL VIEW A 16 3 C 14 DIRECTION OF ROTATION 20 PARTIAL VIEW E V 18 P I 4 4 l T U I I N rA i i f t x 4 I 2 PARTIAL VIEW B v fiet PARTIAL VIEW T H IC i z I V 21 PARTIAL VIEW 23 Courtesy of NationalSwitchgear com ...

Page 28: ... i k h u _ i o h os a as m i m i i i i l msihi3i 10 PH I C D o a s 1 I 5 i 5 d is Bd 1 Q 0 M a i M I fx si r s SS S5 JUsJ J ft I I I i eg i 8 a d Js r9 Kl f ti i A UJ Ms Ssi JJL u u tld JJaJSy p R 4 OI ilfsr Wi 210 J i i a s I 5 13 I K w X H B 8 Ml f 4 w cr hJ M _R82 K 4 i 56 O Zld i i M 1 D PC X o x h S lid QSirst p I N N 9i 13A 0 0 Cd 9Q S N 4 x Oi O CO S 4 o 2w 0 4 H 10 p 0 K w 60 u hH 5 2 UJ P...

Page 29: ...tive interlock bar 4 Closing spring discharge roller yx 5 Negative interlock roller 6 Rating interference plate 7 Front cover 8 Racking engagement lever 9 Secondary coupler 7_ v v v iis y 1 T mmm I mam 6 Not on all models 9 1 FIGURE 12 POWER VAC BREAKER RIGHT REAR VIEW 25 Courtesy of NationalSwitchgear com ...

Page 30: ...FIGURE 13 TRIP COIL AND LINKAGE t u 86132B 7 1 Trip coil 2 Closing spring 3 Trip linkage adjusting rod and nut r V 26 Courtesy of NationalSwitchgear com ...

Page 31: ...FIGURE 14 CLOSE COIL LINKAGE V V i V 4 i kitfV h f A 861 32B 8 3 2 V 5 T 1 Close linkage adjusting nut 2 Close linkage adjusting rod 3 Link to close latch actuator 27 Courtesy of NationalSwitchgear com ...

Page 32: ...switch lf LCS latch checking switch 14 CL MS close latch monitor switch 15 Stationary aux switch operator 16 Close latch adjustment screw 17 Close linkage pivot 1 Closing spring 2 Opening springs 3 Auxiliary switch 4 Spring charging motor 5 Trip coil 6 Close coil 7 Ratchet wheel 8 Closing cam f w 28 i Cl AW rt x itXffASi yt ttfJjl Courtesy of NationalSwitchgear com ...

Page 33: ...P ADJUSTMENT t OPENING SPRING ADJUSTING NUT LOCK NUT c 3 i i i i c 3 USTING NUT T 3 25 i OPEN POSITION OPENING SPRING o 0 v Ac Vi jam ft IK T L0CKNiJT N SETSCREW V I STOP CENTER PHASE i o Courtesy of NationalSwitchgear com ...

Page 34: ...i ADJUSTING SCREW 9 9 5 MIN POSITION TO PERMIT CLOSE LATCH RESET 561 MIN POSITION TO DISCHARGE SPRING SPRING DISCHARGE INTERLOCK r v CAUTION THIS IS A SAFETY FEATURE NOT A ROUTINE MAINTENANCE ITEM X A 30 Courtesy of NationalSwitchgear com ...

Page 35: ... 2Sn CLOSE SPEED 54 fpn X a CONTACT CLOSED 1000 sec tc CLOSED to K TIME IN MILLISECONDS RE TWEEN POINTS a fD 0 75 TIMES MEASURED y CONTACT GAP A CONTAC 0 545 T SAP f 0 0 600 OPEN 1000 2L_ v 12 Vsec OPEN SPEED ft to 1 T FOR BREAKERS EQUIPPED WITH AN OPENING DASHPOT THERE IS VIRTUALLY NO OVERTRAVEL OR REBOUND 1 OPERATING SPEED GRAPHS 31 i Courtesy of NationalSwitchgear com ...

Page 36: ...CK I V r n 531 MIN POSITION TO OPEN BRKR rl 1 CMOOil 1 Of to M0U 10 Mt S22 t ItfrHTCH VJUv Mlt KOJOVTfrAlNl NEGATIVE INTERLOCK 670 POSITION H TO ADJUST iHURLOCK LINKS INSTALL RIVET IN ALIENED HOLES WITH INTERLOCK ROLLER SeT AT 670 ANO STRIKER MAKING CONTACT WITH AOWSTEO TRtf COIL ROO V 32 1 V V ttWk d liffl Courtesy of NationalSwitchgear com ...

Page 37: ...SE COIL PLUNGER GAP PIVOT CLOSE LATCH ACTUATOR CLOSE LATCH PAWL ADJUSTING NUT LOCKING CLIP NJ BEND CORNER AGAINST ADJUSTING NUT mm ft V I coil ASH r ggawrit i i 7 CLOSE COIL 4i V Courtesy of NationalSwitchgear com ...

Page 38: ...SED POSITION OPEN MARK BLOCK c 4r CLOSED MARK G T J I J I I J BLOCK 1 c ih N I CM lk I c 0 0 s c r a 3 V DIMENSION W _ 00 s RANGE Or DIAL INDICATOR TU OPEN POLE V 3 17 O ecr M MASKING TAPE CONTACT GAP r 34 Courtesy of NationalSwitchgear com ...

Page 39: ...H PAWL ft CLOSE LATCH V CLOSE LATCH STOP BOLT 4 CAUTION THIS IS A SAFETY FEATURE NOT A ROUTINE MAINTENANCE ITEM A CHANGE IN THE SETTING OF THE CLOSE LATCH STOP BOLT WILL AFFECT THE ADJUSTMENT OF THE SPRING DISCHARGE INTERLOCK KA ft t Courtesy of NationalSwitchgear com ...

Page 40: ...132B 9 SWITCH BODY PLUNGER SWITCH TY R AOJO T N O OCT I ACT GWOR t 010 CRANK OQ L OPPOKT BR CR T ACTUATOR ROv i ft a o SB STACK SWITCH CLMS SWITCH v i 031 r 000 SWITCH BODY nnr PLUNGER i LGS SWITCH 36 Courtesy of NationalSwitchgear com ...

Page 41: ...GAINST CUP ADJUSTING NUT ADJUSTING NUT JsjkT j p t COIL ASM T ll DEPRESS PLUNGER TO 25t 28 i i r i A GAP t v PLUNGER BASE STOP BRACKET COIL ASM LL r i LUNGER r ucrNca I 70 251 GAP PLUNGER BASE i i i J 7 t TRIP COIL 1 TRIP COIL 2 y FIGURE W SPRING WIPE CP I OPERATING AOD X LOCK NUT DISK I J EROSION INDICATOR W r LM WIPE INO j i i LL JJ 3 SPRING WIPE 37 Courtesy of NationalSwitchgear com ...

Page 42: ...Dimensional Checks Close Coil Plunger Gap 6 Contact Gap 6 7 11 Control Switch Adjustment 6 12 Primary Contact Erosion 6 9 Spring Wipe 6 Trip Coil Plunger Gap 6 Y Relay Replacement 12 N Negative Interlock 3 14 Negative Interlock Roller 3 O Opening and Closing Speed 11 Opening Operation 4 Operation 3 4 5 7 10 Ordering Instructions 13 Electrical Checks 7 10 11 Electrical Operation 7 High Potential Te...

Page 43: ...ed Upon to Operate Performed as Intended Unsatisfactory Operation Failed to Operate Subsystem in Trouble External Insulation to Grnd Internal Insulation to Grnd Insulating Medium Isolating Contact Bushing Interrupter Seals Gaskets Air System SF System C T ResistorSw or Aux Int Voltage Grading Dev Line Terminals DCompressor DHeater Electrical Controls Wiring Operating Mechanism Mechanical Linkage O...

Page 44: ...DURING AND AFTER FAILURE r 4 OSCILLOGRAMS ATTACH WITH EXPLANATION INTERPRETATION 5 ATTACH A DESCRIPTION OF THE EXACT POSITION OF ALL MECHANICAL COMPONENTS FROM THE CONTROL SOLENOID THROUGH ALL INTERRUPTER CONTACTS AS APPLICABLE PHOTOGRAPH EACH IN DETAIL BEFORE MECHANISMS ARE MOVED SUPPLY COPIES OF PHOTOS WITH REPORT 1 6 DESCRIBE ARC DAMAGE AND LOCATION OF ARC PRODUCTS RELATIVE TO VALVE SEALS PHOTO...

Page 45: ... N v 4 V G E CONSTRUCTION EQUIPMENT BUSINESS SWITCHGEAR OPERATION BURLINGTON IOWA 52601 T 1 A T V v Courtesy of NationalSwitchgear com ...

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