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Effective Mar 2018

Instructions for Installation, Operation and Maintenance

of Type VCP-WL Vacuum Circuit Breakers

IB131021EN

Содержание 150 VCP-WL

Страница 1: ...Effective Mar 2018 Instructions for Installation Operation and Maintenance of Type VCP WL Vacuum Circuit Breakers IB131021EN...

Страница 2: ...THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 3: ...Effective Mar 2018 IB131021EN...

Страница 4: ...QUIPMENT TO FAIL RESULTING IN DEATH BODILY INJURY AND PROPERTY DAMAGE ALL SAFETY CODES SAFETY STANDARDS AND OR REGULATIONS AS THEY MAY BE APPLIED TO THIS TYPE OF EQUIPMENT MUST BE STRICTLY ADHERED TO...

Страница 5: ...CIRCUIT BREAKER STRUCTURE INTERFACING 21 SECTION 5 DESCRIPTION ANDOPERATION 23 5 1 INTRODUCTION 23 5 2 INTERRUPTER ASSEMBLY 23 5 3 ELECTROMAGNETIC MECHANISM 26 5 4 CONTROL SCHEMES 29 5 5 INTERLOCKS AN...

Страница 6: ...REAKER FRONT COVER ARRANGEMENT 13 FIGURE 4 1A INSERTION OF THE DRAWOUT EXTENSION RAILS 15 FIGURE 4 1B LIFTING AND SETTING THE BREAKER IN THE HOUSING 15 FIGURE 4 1C BPI PAN ASSEMBLY 17 FIGURE 4 2 ENGAG...

Страница 7: ...power facilities or claims against the purchaser or user by its customers resulting from the use of the information and descriptions contained herein 1 1 2 SAFETY PRECAUTIONS All safety codes safety...

Страница 8: ...AND OR MINIMOD IS CONTINGENT UPON PROPER APPLICATION CORRECT INSTALLATION AND ADEQUATE MAINTENANCE THIS INSTRUCTION BOOK MUST BE CAREFULLY READ AND FOLLOWED IN ORDER TO OBTAIN OPTIMUM PERFORMANCE FOR...

Страница 9: ...pping Delay Y Current Values Withstand Test Voltage Continuous Current at 60 Hz Short Circuit Current at Rated Max kV I Closing and Latching Capability 2 7 K Times Rated Short Circuit Current Closing...

Страница 10: ...Page iv IB131021EN Effective Mar 2018 OUTLINES AND DIMENSIONS 1 4 Figure 1 1 Type VCP WL Circuit Breaker Outlines and Dimensions Front View...

Страница 11: ...ective Mar 2018 Side View SECTION 2 SAFE PRACTICES 2 1 RECOMMENDATIONS Type VCP WL Vacuum Circuit Breaker Elements are equipped with high speed high energy operating mechanisms and are designed with s...

Страница 12: ...on the extension rails while performing such activities as charging closing and tripping Carelessness could cause the circuit breaker to fall from the rails resulting in personal injury to those in th...

Страница 13: ...yoke in conjunction with an overhead lifter or portable floor lifter can be used to move a breaker element When a breaker element is to be lifted position the lifting yoke over the breaker element and...

Страница 14: ...ng Transport Dolly Used to insert or withdraw breaker from lower compartment without portable lifter or move breaker from one location to another Style 6510C71G11 for VCP WL Electrical Levering In Dev...

Страница 15: ...Figure 3 1 Typical VCP WL Tools and Accessories Note Products shown for representation only New products may include design improvements and alternate nameplate configurations...

Страница 16: ...it Breaker Newer model Breakers may not have the escutcheon as shown 1 Front Panel 5 Mechanism Enclosure 2 Levering Latch 6 Lifting Yoke Opening 3 Wheel 7 Primary Disconnect 4 Ground Contact Figure 3...

Страница 17: ...IB131021EN Page xi Effective Mar 2018 1 Electro Magnetic Actuator 5 Closing Coil Capacitor Bank 2 Auxiliary Switch 6 Optional Under Voltage Relay 3 Power Supplies 4 Controller 1 2 4 3 5 6...

Страница 18: ...Page xii IB131021EN Effective Mar 2018 Figure 3 4 VCP WL Mechanism Details 1 Yoke 2 Output Plates 3 Cam Blocks 4 Cross Members 1 2 3 4...

Страница 19: ...ar 2018 Figure 3 5 Typical Rear View VCP WL Vacuum Circuit Breaker Element Vacuum Interrupter 1 Drive Rod Housing 2 Drive Rod Assembly 3 Bell Cranks 4 Figure 3 6 Typical VCP WL Vacuum Circuit Breaker...

Страница 20: ...v IB131021EN Effective Mar 2018 Nameplate 5 Breaker Charged Discharged Indicator 1 Operation Counter 6 Manual Close Button 2 Open Closed Indicator 7 Manual Open Button 3 Emergency Open Handle 4 1 2 3...

Страница 21: ...xceed the values specified Record the values obtained for future reference 4 5 NAMEPLATE Compare the circuit breaker nameplate information with switchgear drawings for compatibility 4 6 ELECTRICAL OPE...

Страница 22: ...er compartment see Figure 4 1A and Figure 4 1B Figure 4 1A Insertion of the Drawout Extension Rails F i g u r e 4 1 B Lifting and Setting the Breaker in the Housing Checking pan operation A T o o p e...

Страница 23: ...ER THE CIRCUIT BREAKER FROM TEST OR CONNECTED POSITIONS CORRECT OPERATION OF SOME OF THE INTERLOCKS IS DEPENDENT ON USE OF THE PROVIDED LEVERING CRANK PERSONAL INJURY OR EQUIPMENT DAMAGE COULD RESULT...

Страница 24: ...CODE PLATES 2 LEVERING SYSTEM 12 PROVISION FOR PADLOCKING 3 AUTOMATIC SECONDARY 13 METAL FRAMEWORK 4 RACKING SCREW 14 BREAKER RAIL 5 MOVING BLOCK 15 MR2 INTEGRAL RACKING PROVISIONS 6 SLIDER 7 BREAKER...

Страница 25: ...ewing position when the breaker is fully connected BPI breaker position indication Label Represents positive indication of breaker location at any position through use of a colored label mounted on th...

Страница 26: ...and engage the secondary contacts following the procedure described in paragraph 4 8 1 As soon as the cap bank is charged the condition will be indicated by a Breaker Charged Discharged Indicator on...

Страница 27: ...ure 4 3 Typical VCP WL Circuit Breaker Bottom View Ground Contact 5 Trip Floor Tripper 1 Secondary Disconnect 6 Code Plates 2 Close Floor Tripper 7 MOC Operator 3 Extension Rail Interlock 4 1 2 3 5 7...

Страница 28: ...erences The following interlocks are provided to ensure safe and proper operation Code Plates Code plates are provided to prevent the insertion of a circuit breaker into a structure of a higher power...

Страница 29: ...ers will automatically begin to open uncovering fixed primary contacts TOC switches will also operate once the CONNECTED position is reached if TOC switches are provided in the structure Remove the le...

Страница 30: ...ce The flexible shunt is a non sliding current transfer system between the movable stem and the bottom conductor which eliminates the need for maintenance Figure 5 1 Multiple finger floating type prim...

Страница 31: ...checked during standard inspection and maintenance intervals as discussed in Section 6 of this document to ensure it is within the specified limits on each phase The contact wipe can be increased if i...

Страница 32: ...agraph 6 5 for information on Contact Erosion F i g u r e 5 3 M e a s u r ement of Contact Stroke Figure 5 4 Loosening the Drive Rod Housing Jam Nut Figure 5 5 Measurement of Contact Open Gap 5 3 ELEC...

Страница 33: ...acitors which store energy to open and close the circuit breaker The controller has an internal capacitor which stores energy for a tripping operation The controller charges an external capacitor bank...

Страница 34: ...rom initiation of close signal to contact make 65 milliseconds MAX Opening Time from initiation of trip signal to contact break 3 cycle 20 40 milliseconds 5 cycle 20 70 milliseconds Re closing Time fr...

Страница 35: ...IB131021EN Page xxix Effective Mar 2018 5 4 CONTROL SCHEMES The basic control scheme for the VCP WL circuit breaker is shown in Figure 5 5 below...

Страница 36: ...f a circuit breaker from its compartment refer to paragraph 4 8 1 in this manual The levering device consists of a drive screw a drive nut two side rails and a sliding cage In the TEST position the nu...

Страница 37: ...into the TEST position It remains engaged in all other circuit breaker positions within the cell Figures 4 2 and 4 4 5 9 MOC AND TOC SWITCH OPERATIONS The MOC mechanism operated control switch operato...

Страница 38: ...cteristics if there are any customer uncertainties in the records of the magnitude duration or other fault details increased inspection frequency should be considered Follow the steps presented in Par...

Страница 39: ...1 4 20 72 5 16 18 144 12 lb ft 3 8 16 300 25 lb ft 1 2 13 540 45 lb ft CAUTION OVER TORQUING CAN CAUSE PERMANENT DAMAGE WHILE UNDER TORQUING WILL NOT PROVIDE THE PROPER CLAMPING FORCE AND MAY EVENTUAL...

Страница 40: ...rmation or Excessive Wear Manual Operation No loose or missing Parts No dust or foreign matter Smooth operation and no excessive wear No excessive deformation or wear Smooth operation Visual and by fe...

Страница 41: ...have sufficient volt ampere capacity It is recommended that the equipment be capable of delivering 25 milliamperes for one minute ONLY AC HIGH POTENTIAL TESTS ARE RECOMMENDED WE DO NOT RECOMMEND DC PO...

Страница 42: ...lead of the test machine to one of the poles of the breaker Connect the remaining poles and breaker frame to ground Start the machine with output potential at zero and increase to the test voltage Ma...

Страница 43: ...E EQUIPMENT WHILE IT IS ENERGIZED NEVER PUT YOUR HANDS NEAR THE MECHANISM WHEN THE CIRCUIT BREAKER IS IN THE CHARGED OR CLOSED POSITION DEATH OR SEVERE PERSONAL INJURY CAN RESULT FROM CONTACT WITH ENE...

Страница 44: ...witch wiring problem Inspect for loose wires at red Push to Open push button Controller wiring problem Inspect for loose wires into terminals controller Circuit breaker makes no attempt to open with e...

Страница 45: ...ATON Service Center Circuit breaker interlock is preventing close Ensure circuit breaker is fully racked in or out of enclosure Verify that the emergency open handle rod assembly is changing state of...

Страница 46: ...ded destroyed in a similar manner as the switchgear that it is contained within The breaker raw materials in general are made from Copper Steel Aluminum and plastic 6 13 FAILURE REPORTING It is import...

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