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EMENS-ALLIS

Switchg�ar

INSTRUCTIONS

FCV-500 AND FCV-750

·VACUUM CIRCUIT BREAKERS

WITH

STORED ENERGY OPERATOR

NO. 515-2V

18X5416-01

June, 1978

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Содержание FCV-500

Страница 1: ... 51EMENS ALLIS Switchg ar INSTRUCTIONS FCV 500 AND FCV 750 VACUUM CIRCUIT BREAKERS WITH STORED ENERGY OPERATOR NO 515 2V 18X5416 01 June 1978 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 2: ...J w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 3: ...ng and Closing Time Interrupter Replacement Mechanism Stored Energy Operator Closing Spring Removal Lubrication Method for Cleaning Bearings 9 9 9 9 1 0 10 11 11 11 11 12 12 12 12 12 12 13 13 13 13 13 14 14 15 15 15 15 ILLUSTRATION Fig Circuit Breaker Handling Instruct ions 17 Fig 2 Typical Vacuum Circuit Breaker Assemblies 18 Fig 3 Vacuum Interrupter Assembly 19 Fig 4a Side View of Vacuum Circuit...

Страница 4: ... damage to interrupters Do not attach lifting hooks rope etc to bushings insulating parts fittings etc Do not slide breaker off shipping skid without using ramp blocks provided as interlock plunger and linkage may pe damaged STORAGE Indoor The circuit breaker should be installed as soon as possible If storage is necessary it should be kept in a clean dry place where it wiII not be exposed to dirt ...

Страница 5: ...nual trip button to open breaker 7 Hi pot each vacuum interrupter while in the open position to verify that damage has not occured during shipment The voltage should be raised gradually and the contact gap should sustain 27kV 60Hz a c for 1 minute or 38kV d c for 1 minute If it does not the interrupter is faulty and must be replaced CAUTION OBSERVE THE FOLLOWING ITEMS WHEN HI POTTING THE VACUUM IN...

Страница 6: ...med on the circuit breaker The closing time should be within the range of 042 to 062 econds and the tripping time within 018 to 025 seconds See Fig 19 16 De energize control power and remove plug jumper 17 Coat movable primary and secondary disconnects with a film of Siemens Allis contact lubricant 15 171 370 002 18 Insert breaker into its c ubicle to disconnect position and close manually 19 Comp...

Страница 7: ...gs stored energy STORED ENERGY OPERATOR The stored energy operator Figs 6 7 8 uses charged springs to power the closing operation Opening is spring powered also but not with the same springs used for closing A stored energy operator consists of three systems spring charging drive cam and ratchet assembly and the four bar toggle linkage Fig 5 A D These systems are disengaged from each other except ...

Страница 8: ...eck the motor cutoff adjustment Page 31 if springs do not charge Opening Breaker Stored energy operated breakers can be tripped manually by depressing the trip rod 44 Fig 4b or electrically by energizing the trip circuit This rotates the latch that allows the closing linkage to collapse and reset Closing Breaker When the springs of a stored energy operated breaker are fully charged it can be close...

Страница 9: ...e ratchet wheel and cams counterclockwise until spring release rollers 8 Fig 8 on the inside surfaces of cams 7 Fig 8 engage the spring release latch 9 Fig 7 This arrests the motion of the ratchet wheel 4 and the cams 7 and holds the operator in the fully charged position As the cams and ratchet wheel go over center the motor cutoff switch 10 Fig 6 is actuated to de energize the spring charging mo...

Страница 10: ...s 5 BREAKE R CLOSING CYCLE Energizing the spring release solenoid 1 3 Fig 7 will drive the spring release latch 9 Fig 7 away from the spring release rollers 7 Fig 8 on the cams 7 Fig 7 releasing the stored energy in the closing springs 6 Fig 7 The closing springs 6 will drive the ratchet wheel 4 Fig 6 and the cams 7 Fig 7 counter clockwise at a high rate of speed The cams 7 will engage the cam fol...

Страница 11: ...or cutoff switch striker to depress the actuator 35 Fig 6 of the 88 1 switch opening the motor circuit and the 88 3 contact in the anti pumping relay circuit The spring charging motor coasts to a stop with the driving pawl 2 Fig 6 oscillating freely on the smooth portion of the ratchet wheel Closing The standard control schematic for a stored energy operator is shown in Fig 9 When the close contro...

Страница 12: ...fter numerous mechanical operations on every breaker to insure correctness No adjustment checking should be necessary on new breakers If a mal function occurs check for hidden shipping damage The following will help you make the correct adjustments when replacing a broken or worn part CIRCUIT BREAKER TIMING A comparison of circuit breaker timing at any period of maintenance with that taken when th...

Страница 13: ...s arm and four bar linkage until the 060 1 52mm gap is obtained over the stop washers 54 Fig 3 This adjustment should also bring the latch and latch rollers within the specified tolerance Retighten jam nut 146 Fig 46 1 3 If after step 1 2 the setting of the lower link stop 36 Fig 11 prevents the latch roller link from rotating sufficiently to achieve the required 030 to 060 0 76 to 1 52mm gap read...

Страница 14: ...ed by the hol din g p awl Some sprin gback can occ ur between tooth p osi ti on s on the ra tch et wheel REMOVAL OF CLOSI NG SPRINGS The Closing Springs may be quickly and safety removed from the breaker Remove two of the four bolts holding the spring bearing block at the rear of the breaker These bolts should be diagonally opposite each other Insert studs approximately 6 150mm long in place of bo...

Страница 15: ...d by blocking the actuating roll r to _ the indicate _ d hei _ ght and adjusting a pair of jam nuts located on the manual closing pull rod to mamtam the roller m _ this position with blocking removed Return spring adjusting nut should be set to produce 0 5 06 mch 12 7 1 6 mm deflection in return spring The following adjustments are to be made only after completing the close latch bite adjustment d...

Страница 16: ...rrup ted heavy faul t current Al l curren t carryin g joints should be inspected to be sure all con tact surfaces are free of p ro trusion s or sharp plane change s Contact Erosion A visual check of distance A Figure 3 with breaker closed will indicate the contact erosion When the distance measures within 030 to 015 inches 8 to 4mm the interrupter assembly should be replaced Intermediate adjustmen...

Страница 17: ...nterrupter a ssembl y be removed and replaced completel y rather than removing two or more interrupters at a time T his procedure w ill help retain the factory set al ignmen t at the pr im ary di sconnect bushing s Fol lowing is a step b y step procedure for ex changing an interrupter assembl y Refer to Fig 4a 1 Remove hinged panel assembl y 60 from the circ uit breaker after di scharging spring s...

Страница 18: ...EPLACEMENT INTER RUPTERS SHOULD BE READJUSTED TO 1 370 inch 34 8 mm DIMENSION INTER RUPTERS WITH CONTACT E RROSION SHOULD NEVER BE READ JUSTED 16A The replacement procedures listed above replacing and adjusting one interrupter assembly at a time should maintain the required open gap on the interrupter assemblies by reference to the the two remaining assemblies If for any reason the adjustment on a...

Страница 19: ...ied with the accessories is intended to be used exclusively on the contacts and must not be used on any part of the circuit breaker mechanism Recommended circuit breaker lubrication points are shown in Figure 4a and 17 The chart Fig 18 outlines two methods of lubrication Refer to this chart for recommended lubricant and points of application The first method requires no disassembly and is suggeste...

Страница 20: ...e of breaker C Place ramp pieces in front of the pallet in line with breaker wheels and nail to pallet as shown by arrows in D Slowly roll breaker off pallet E F A D CAUTION R EMOVE PACKAG ING BR EAK ER S AR E SH IPPED I N C LOSED POSITION WITH THE TR IP ROD AND FOOT LEVER ENCLOSED BY PACKAG ING TO PR EVENT OPEN I NG DUR ING SH IPM ENT _J j B C F Fig 1 Circuit Breaker Handling I nstructions 1 7 w ...

Страница 21: ...2a Typical FCV 500 Vacuum Circuit Breaker Fig 2b Vacuum Circuit B reaker with Hinged Panel Ti lted Back to Gain Access to the V acuum I nterrupter Assemblies w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 22: ... NOT E DO NOT CHANGE FACTORY SETTI NGS OF E LASTIC STOP NUTS A A VE RAGE B E T W E E N A l A 2 V I EW A CO NTACTS OPEN V I EW 8 CO NTACTS C LOSED Fig 3 Vacuum I nterrupter Assembly One Pole I 1 9 l II A 2 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 23: ... h I I I I I T I r I T ft n __ U I _JL 11 11 ln I 1 i TT t i I li 1 370 II lht fl J I r 43 00 46 69 31 00 I I I I T A _j Lf t i i l t I I l I Fig 4a Side View of Vacuum Circuit Breaker Shown with Contacts Closed 20 11 I I r L I II w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 24: ...UTTON FOOT LEVER I NTER LOCK R E LEA SE i nr 33 OPEN lNG FRONT V I EW I NTER LO CK P LUNGER TR I P B UTTON MAN UA L 46 CLOSE PULL ROD SPR I NGS POS I T I O N IND ICATOR OPEN C LOSED OPERATION CO UNTER FOOT LEVEFl I NTER LOCK R E LEAS E Fig 4b Circuit Breaker Frame Operator Assembly 2 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 25: ... LATCH I J i _ UR BAR L I N KAGE e F I XED PIVOTS 0 MOVING CENTERS CLOSI NG LATCH _ _ _ CLOSING SPRING BREAKER CONTACTS OPEN SPR ING D ISCHARGED e F I X ED P I VOTS 0 MOVI NG CENTERS 81NJ Mf CLOSI NG SPRING CLOSI NG LATCH 8 BREAKER CONTACTS C LOSED SPR I NGS CHARGED 0 F igure 5 Sequence of Operatio n 22 __ I TRIP o LATCH I k FOUR SAR LIN KAGE 1Ft M E I TR IP LATCH w w w E l e c t r i c a l P a r t...

Страница 26: ...ose Pul l Rod 22 Spring Discharge Rol ler Free Height Adjustment 23 Spring Discharge Close Latch Yoke End Adjustment 24 Spring Discharge Rol ler 25 Charge Discharge Indicator 26 Discharge Indication Adjustment 27 Charge Indication Adjustment 28 Mechanical Charging Interlock Adjustment 29 Manual Charging Shaft and G ear Box 30 Anti Pumping Relay 31 Trip Latch Bite Adjusting Screw 32 Trip Latch Bite...

Страница 27: ... 11 J J 0 0 11 a 0 N J b 1 0 I co o i i Fig 6 5 1 5 2V Operator L H View 24 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 28: ...Fig 7 5 1 5 2V Operator R H View 25 r 0 0 0 N lh LO I I u w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 29: ...Fig 8 51 5 2V Operator Front View 26 c 0 u 0 Q c 0 N JJ LO I 00 u w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 30: ... P MCO MOTO R CUTO F F SWITCH 88 SPR ING CHA R G I N G MOTOR CLC C LOSE LATCH CH ECK SWITCH TLC T R I P LATCH CHECK SWITCH CSC CONTROL SWITCH CLOSE CONTACT CST CONTROL SWI TCH T R I P CONTACT R R E D I N D I CATI NG LAMP G G R E E N I N DI CATING LAMP a AUX SWI TCH OPEN WHEN B R K R IS OPEN b AUX SWITCH CLOSED WHEN B R K R I S OPEN I I _ _ _ _ _j SENSO R ACTUATI NG MAGN ET LATCH SECONDARY B LOCK S...

Страница 31: ...F 1 0 Type IQ Q 1 0 Auxl l ar T y Switch 28 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 32: ...LOWER TRIP L I N K F ig 1 1 Trip Latch Clearance Adjustmen t 29 TR IP w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 33: ...m A suitable feeler gage of optimum thickness 2 18 5 56mm should be inserted in the armature gap That is the space between the ground surfaces of the solenoid frame and ground T shaped extensions of the solenoid plunger The connecting link between the solenoid plunger and spring release latch should be adjusted to maintain the plunger in this position The locking screw is released and the adjustin...

Страница 34: ... 88 MOTOR CUTO F F SWI TCH 1 0 PIVOT SC R EW F ig 1 3 Motor Cutoff Switch 31 H EX SHA F T RATC H ET WH EE L I 4 H O L D I N G PAWL w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 35: ... ACTU ATOR TOP O F F RAME ___ _ LATCH BITE D LATCH ADJUSTM ENT SCREW ADJUSTM ENT SCREW JAM NUT C LOS E LATCH Y _ 1 32 0 8mm AT PO INT OF f _ SWITCH OPERATION 3 2mm M A X L t F ig 1 4 Close Latch Bite and Check Switch Adjustments 32 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 36: ...k between the solenoid plunger and close latch should be adjusted to mamta i n the plunger in this position The l ock ing screw is released a nd the adjusting cap shifted u ntil the effective l ength of the l i n k supports the plunger with in the indicated range F R E E H E I GHT R E TU R N S P R I N G ADJUS TM E N T ADJUST ING N U T 3 5 _j 1 88 9mm _ _ l CON N ECTI N G L I N K M A Series 4 59 1 ...

Страница 37: ...CENTR IC SHAFT RO L L PIN AT BEG INNING OF POWER STROKE CLOCKWISE PAWL RETURN _____ 0 I SPR ING _ Fig 1 6 Close Latch Mechanical In terlock 34 G UI DE BUSHI NGS CLOSE LATCH DR I VI NG PAWL ADJUSTING NUT A SEE PAG E 1 7 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 38: ... DE V I E W A VIEW B F ig 1 7 Lubrication Points on FRONT V I EW A i _ I VI EW C Frame and Operator View A D rive Assemb v View 8 and Linkage Assembiy View C r w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 39: ...1 3 1 00 1 P I N D S LI D I NG S U R FACES LIG HT A P P LICAT I O N O F W I P E C LEAN A N D APPLY MO LY MOLYCO T E 557 COT E 557 L I B E R A LLY E S LI D I NG PA RTS AT VACUUM L I G HT APPL ICAT ION O F LIG HT APP L I CAT I O N O F F I G 3 I N T E R R UPT E R B EACON P 325 B EACO N P 325 F R O L L E R AND N E E D L E B EA R I NG S NO LU B R I CAT I O N R EQ U I R E D CLEAN P E R I NSTR UCT IONS A...

Страница 40: ...TR UCTION BOOK 1 8X54 1 6 PAGE 26 cc 042 062 NOTE TERMINAL 7 9 A R E JUMPER E D ASSUMING THAT CLOSE TRIP VOLTAGE I S THE SAM E I F C LOSE T R I P VOLTAGES D I F FER TEST TERMINAL 9 INDIVI DUA L LY TERMINAL 7 I N D I V I DUALLY 60 1oof2 BATTE R Y TER M I N A L VOLTAGE C LOSE 01 8 025 TYPICAL TRACES F ig 1 9 Method for Checking Opening and Closing Times 37 w w w E l e c t r i c a l P a r t M a n u a...

Страница 41: ... S I O N M UST B E B ETW E E N H A L L E F F ECT SW ITCH BASE AND T O P O F S H R I N K T U B I NG A S SHOWN L I GHT E M I TT I N G D I O D E D D E LAY MO D U L E F i g 20 Trip Latch Bite and Check Switch Adjustments 38 ADJUSTMENT SCR EW JAM N U T t 0 31 2 01 5 T R I P LATCH w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 42: ...S I E M E N S ALLI S Switchgear P O Box 1 4505 West All is Wisconsin 5321 4 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

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