ABB 15VHK1200 User Manual Download

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Courtesy of NationalSwitchgear.com

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Summary of Contents for 15VHK1200

Page 1: ...ntenance Instructions Medium Voltage Vacuum Power Circuit Breakers Type 15VHK500 750 1200 2000 Amperes 15000 Volts ikllll MIPIP ABB Power Distribution Inc Circuit Breaker Division ASEA BROWN BOVERI Courtesy of NationalSwitchgear com ...

Page 2: ...ACTS Closing and Opening Times and Speeds Operating Mechanism Racking Mechanism Control Relay Adjustment LUBRICATION DIELECTRIC TESTS ELECTRICAL CHARACTERISTICS ELECTRICAL OPERATING SEQUENCE RENEWAL PARTS TYPICAL CONTROL CIRCUIT 3 3 3 3 3 3 3 3 5 5 5 5 6 6 6 7 7 9 9 9 9 10 10 10 10 11 12 These instructions do not purport to cover all details or variations nor to provide for every possible continge...

Page 3: ...efore discarding any pack ing material If any shortage of material is discovered promptly notify the nearest District Office Information specifying the purchase order number andpart numbersof the damaged or missing parts should accompany the claim Circuit breakers should be installed in their permanent location as soon as possible If the breakers are not to be placed in service for some time it is...

Page 4: ...BROWN BOVERI Fig 2 Circuit Breaker with Front Cover Interphase Barrier Assembly Removed Fig 1 Circuit Breaker Assembly with Lifting Yoke Installed Fig 3 Front Circuit Breaker Panel Accessories Courtesy of NationalSwitchgear com ...

Page 5: ...o detect cracks the inspection should be done in a well lighted area If the mid band ring when so equipped has been bent by an accidental impact that area should be specially scruntinized for seal damage Small external chips however will not impair the useful life of the inter rupter To prevent loss of vacuumcare should be exercised so as not todamagetheinterrupter splasticcover vacuumPinch off tu...

Page 6: ...turn the racking crank counterclockwise only until resistanceto motionis felt Approximately 2 3turns DO NOT FORCE The closing springs if charged will auto maticallydischarge whenthecircuitbreakerismovedtothe withdrawn position The circuit breaker can now be re moved from the compartment by pulling on the handle located on the front barrier MAINTENANCE ADJUSTMENTS AND TESTS General Information j Th...

Page 7: ... Excesscontact pressure orfriction cancausethisconditionandif it cannot be relievedthenthe factory should be consulted 3 Contact wipe contact pressure See Fig 5 The contact air gap and contact wipe is set at the factory by setting the vertical position of the interrupter 1 and the verticalposition of the pushrod 2 These parts shouldnot be repositioned in the field unless a pushrod change is requir...

Page 8: ...fim S r J earner i l T J m OPENING THOUGH j iw R K HOUSING 4 PTU0C41 2 Fig 6 Latch Check Switch Adjustment RACKING LEAD SCREW AOi I rp T o t o RACKING RCLEASC CEVTR D 5 y PADLOCK LOCKOUT PLATE 2 Fig 7 Racking Mechanism Courtesy of NationalSwitchgear com ...

Page 9: ... the closing andopeningtimesarerecommendedtobe checkedby use of a cycle counter travel recorder oscillograph etc to monitor the time from energizing to contacts touch or part A potentiometer with mounting support used in conjunc tion with an oscilloscope or oscillograph and instructions are available on special order for specifically checking opening and closing speeds The circuit breaker closing ...

Page 10: ...m Do not operate t circuit breaker without completing this procedure 3 The charging motor is sealed and no lubrication is required 60Hz Primary Circuit 36 0kV Secondary Circuit Control 1100V If it is desired to make a dielectric test on the secondary control wiring turn the spring charging motor disconnect switch 1 Fig 3 to the OFF position Apply test voltage 1100 V AC for one minute to each of th...

Page 11: ...onditioning The bulletins contain specific part ordering instructions and if desired specific instructions regarding replacement of those part assemblies recommended that are not obvious are also available if ordered TABLE 1 OPERATING VOLTAGE RANGE Undervoltage Nominal Spring Charging Motor Control Close Trip Pick up Voltage Coil Coil Maximum Drop out 24 Vdc 7 14 19 28 14 28 21 48 V dc 41 15 29 38...

Page 12: ...d Open When Springs Are Charged TC Shunt Trip CoH X Closing Latch Release Coil Y Control Relay Lockout Coll Ya Normally Open Control Relay Contact Yb Normally Closed Control Relay Contact TB Terminal Block Point MU Motor Lead CE Coti Lead End C1 C2 Terminal Jumper Control Device Female Secondary Disconnect Contact UV Undervoitage Trip Device UVb Normally Closed Undervoitage Trip Device Contact 69 ...

Page 13: ...Courtesy of NationalSwitchgear com ...

Page 14: ...OVER1 ASEA BROWN BOVERI INC ABB Power Distribution Inc Circuit Breaker Division P O Box F 7 Florence South Carolina 29501 New Printed in U SA 1M 0190 Phone 803 665 144 Telecopier S03 664 0520 Courtesy of NationalSwitchgear com ...

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