Courtesy of NationalSwitchgear.com
Страница 1: ...YPES VM 4 16 AND VM 13 8 FOR VACUUM CIRCUIT BREAKER TYPES VB 4 16 VB 7 2 AND VB 13 8 i s V r 4 V i l v V 3 y f ill i a Os m r i t 11 ap V V J V v I 2 4 t A w mm i a p S r T i 4 j J 3 V i i i r i l K V...
Страница 2: ...17 17 17 19 19 19 19 19 20 20 21 Installation Location Anchoring Indoor Equipment Floor Preparation Outdoor Equipment Outdoor Equipment With Protected Aisle Outdoor Equipment With Common Aisle Breake...
Страница 3: ...ive Interlock Spring Discharge Interlock Interference Interlock Closing Spring Gag Interlock Key Lock Padlocks Stationary Auxiliary Switch Breaker Position Switch Space Heaters Maintenance Recommended...
Страница 4: ...s for Metal clad Switchgear Bus Insulating Boot Insulation of Connection Bars Bus Duct Gaskets Installation of Primary Cables Cable Termination without Pothead Single conductor Rear View of Unit Showi...
Страница 5: ...3 8 750 VM 13 8 VB 13 8 1000 8 25 1200 2000 1200 2000 1200 2000 1200 2000 500 15 0 500 15 0 750 15 0 1000 3000 RECEIVING HANDLING AND STORAGE packed in one of the cases The case is especially marked a...
Страница 6: ...a IT T H C oo on Typical Outdoor Power Vac Metal Clad Switchgear Equipment Fig 2 6 Courtesy of NationalSwitchgear com...
Страница 7: ...0 CO ob I v i x i i s y i Fig 3 Typical Outdoor Power Vac Metal Clad Switchgear with Protected Aisle y j Ux i Fig 4 Typical Outdoor Power Vac Metal Clad Switchgear with Common Aisle 7 Courtesy of Nati...
Страница 8: ...AL METHOD AIR LIFT JACK Li jj i 1 CABie r LOOP i CROSS LIFTING i I 1 SI j r r i I i i i I L L I L I J J u JACKING TIMBER T r UFT JACK 4 COftNCB LIFTING ANGif r T r i in R i J 7 ion O I y mmm OPTIONAL...
Страница 9: ...mber requisition number etc should accompany the claim If it is necessary to store the equipment for any length of time the following precautions should be taken to prevent breakage corrosion damage o...
Страница 10: ...ies should be uncrated and put on trickle charge immediately upon receipt 4 Dampness or condensation can be prevented by making a temporary power supply connection to the heaters already installed in...
Страница 11: ...AMf SWf rCMC AS PAD PAO Q FPoiJr i REAP 0 ZVASiV tfdOe pfp7 iP o ANCHORS ri SWITCHGEAR m FLOOR TEE f Q THREADED INSERT IN COtLOWTE POWER VAC FLOOR FRAMe 0 FINISHFLOOR PAD Tv Sff HOTS FINISH FiOOR B m...
Страница 12: ...I T 31 T jMwmu o tm ASM Off I COMPLEX 8 O C ob tH HH UFTSUfa SWHEAMR xz SPREADER X1 J v j 5 y o j I r t H h 5 0 I PO writeSTwerutt o N O i t sb E i i f 4 T TYR AJ5U ASM y Al Lf ASM A E ASM M K M Fig 7...
Страница 13: ...LATION r AISLE FLOOR I METAL CLAD CGPTFCTENT FLOOR r H o FINISH FLOOR F LETAILVIEW G o CM o r tw rH PH RQQE C6R CHANNEL END CAP END CAR 4 QIANNEL END CAR AISLE ROOF O EQUIPMENT ROOF D CHANNEL END CAR...
Страница 14: ...H D f 1 zooe 1 nePtATt EQUIR ROOF i i ST DT c R0OF CAR fE CHANNEL END CAR H i j L z ANGIE HSS5JH T U METAL CLAD ECUIPMENt END CAP METAI HAD EQUIPMENT A H H TVR PRESS TtTE d grip CAP 1 JL l COMMON AISL...
Страница 15: ...pace is provided across the top of the unit to run wires between vertical sections A lift truck Fig 10 is provided for insertion and removal of the circuit breaker from the metal clad unit Power Vac c...
Страница 16: ...Side Section View Power Vac Metal clad Switchgear r v 7 mi r s I C r A 1 U co j ro ft ri co Vi 1 Lift Truck 2 Breaker 3 Rails 4 Interlock ON 00 cm o Y t r Pw v 1 2 1 r f j I i St i K 3 i i w rs t it i...
Страница 17: ...anism consists of heavy duty steel jack screws which carry nuts that engage the sides of the removable element The racking mechanism may be manually operated with the racking handle which is furnished...
Страница 18: ...J i ri v ON N v v 1 1200 AMP 00 V i co 3 ON GO v 2 2000 AMP T ij A l f I f 3 3000 AMP 3 Si Fig 12 Primary Disconnects 18 Courtesy of NationalSwitchgear com...
Страница 19: ...he transformer fuses may be safely removed and replaced A barrier mounted at the rear of the carriage moves with the carriage to a position in front of the stationary part of the primary disconnect de...
Страница 20: ...lation resistance megger By using potential transformers it can also be used for phasing out cables Refer to the instruction book provided for this device If hot sticks are used they should be insulat...
Страница 21: ...more than 3 inches beyond the front of the equipment The space at the rear must be sufficient for installation of cables inspection and maintenance OUTDOOR EQUIPMENT Switchgear support should be concr...
Страница 22: ...s removed and then the aisle slid into its final position Care should be taken to distribute the pushing forces over the aisle frame with suitable timber 5 Install gasketing material and lower aisle r...
Страница 23: ...uctors regardless of material or method of insulation should be made as described below BEFORE ANY COVERS ARE REMOVED OR ANY DOORS OPENED WHICH PERMIT ACCESS TO THE PRIMARY CIRCUITS IT IS ESSENTIAL TH...
Страница 24: ...REMOVE THE FOLLOWING ITEMS MARKED WITH ASTERISK FROM THE EXISTING PROTECTED COMMON AISLE AND METALCLAD SECTION AND MOVE TO THE END OF THE NEW ADDITION 1 CHANNELENDCAP 2 ROOF CAPS 3 METALCLAD END CAP...
Страница 25: ...ctions will now be exposed It is not necessary to remove the secondary coupler or the racking mechanism chain in order to assemble the bus bars Fig 19 Bus Insulating Boot 3 Install the lower phase 3 b...
Страница 26: ...sition required by the fixed points at the ends of the duct 4 Over the insulating tape apply one layer of glass tape half lapped as a protective covering as shown in Fig 20 5 Over the glass tape brush...
Страница 27: ...RY CABLES The primary cable connections are reached by removing the rear bolted covers When circuit breakers are stacked two high and primary cable terminations must be made in both upper and lower un...
Страница 28: ...the type most generally used The factory does not furnish insulat ing materialsfor completing stress cones and cable terminations In all cases carefully follow the cable manufacturer s recom mendation...
Страница 29: ...esters to protect the switchgear from damage due to lightning The General Electric Company s recommendations as to the types of circuits requiring lightning protection and a list of recommended lightn...
Страница 30: ...nt with insulating tape provided maintaining tension on the tape while wrapping as shown in Fig 20 Where there are sharp angles apply additional layers to obtain equivalent of the insulation on the fl...
Страница 31: ...6 Jack Screw 7 Interlock I Fig 27 Racking Mechanism CN i CO s 2 00 1 Lift Truck 2 Truck Locking Handle 3 Wheel Locking Handle 4 Docking Hooks oo N 3 4 HJ PUU P ORASP to OR BOTTOM WllltKsitU T t ML i F...
Страница 32: ...ete OPERATION The metal clad switchgear provides safe operation and easy removal and replacement of the circuit breaker Circuit breakers of the same type rating and duplicate wiring may be interchange...
Страница 33: ...breaker studs may be checked with respect to the stationary conductor in the unit THE SWITCHGEAR MUST BE DEENERGIZED FOR THIS CHECK Use the racking handle to turn the jackscrew several turns toward t...
Страница 34: ...tween the Disconnect Test and Connect posi tions As an added precaution the negative interlock will trip the breaker and hold it trip free if an attempt is made to operate the racking mechanism when t...
Страница 35: ...t breaker following the instructions given under BREAKER INSTALLATION For this test the control power circuits in the metal clad must be energized Place the breaker in the Disconnect Test position and...
Страница 36: ...m by keeping the hexagon turning shaft covered KEY LOCK On the lefthand breaker racking mechanism track is a provision for a key lock The purpose of this lock is to keep the breaker from closing in th...
Страница 37: ...tatic control not be used If thermostatic control is used the contacts of the thermostat should be set to close between 95 F and 100 F on falling temperature de energizing the heaters only when strong...
Страница 38: ...to ground and between phases of the insulation of buses and connections with a 1000 or 2500 volt megger Since definite limits cannot be given for satisfactory insulation resistance values a record mus...
Страница 39: ...originally furnished If parts listed separately are to be assembled at the factory order must so state Specify the quantity reference number description and this bulletin number Not all parts shown he...
Страница 40: ...Hur v Vv i i ti V V f SSiiSKgaS C Slag 5rl V V V JSS jails fi f c 1 V wi I v Z v r m in s g 5 A ri VV y t ir y s tr v f 1 S y i 4 s x t 1 S P V V v s v l V 1 s t f is feV r _ v V a i V Fig 38 Spreade...
Страница 41: ...for Primary Disconnects Surge Suppressors and Bus m mmmir r pi CBS M MI mm o i o MHft CO Q oo i 5 i i O oh i H 448 Ill Mg saassSS ricr 8 SSSS j 8 3 3 1 m mm m m msmmm m fS5 kS Fig 40 4 16 kV Inter Un...
Страница 42: ...3 8 kV Inter Unit Barrier Fig 42 4 16 kY Primary Disconnect r r j vV v 1 r V J y r m S 3 m m y mm i b 6 rSV s g v V iff fi a A fc o i V Fig 43 13 8 kV Primary Disconnect 42 Courtesy of NationalSwitchg...
Страница 43: ...00 r nn a v N f f r o oo 1 5 SAFETY CATCH Fig 44 Vacuum Metal Clad Breaker Unit 43 Courtesy of NationalSwitchgear com...
Страница 44: ...jf 1 1 GENERAL ELECTRIC COMPANY SWITCHGEAR BUSINESS DEPARTMENT PHILADELPHIA PA 19142 GENERAL j ELECTRIC i Sv 5 U 3 79 Courtesy of NationalSwitchgear com...
