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ABB Manuals
Circuit breakers
VHK-R
Installation & maintenance instructions manual
ABB VHK-R Installation & Maintenance Instructions Manual
Medium-voltage vacuum power circuit breakers 250, 500 and 750 mva, 1200 /2000 amperes, 5000 - 15000 volts
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Contents
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Table of Contents
Table of Contents
Introduction
Circuit Breaker General Information
Installation Inspection
Vacuum Interrupter Examination
Insulation Structure
Manual Operation of Electrically Operated Models
Maintenance : Adjustments and Tests
General Information
Millivolt Drop Test
Insulation Cleaning
Circuit Breaker Operation , Contact Adjustment and Timing
Contact Adjustment
Closing and Opening Times and Speeds
Operating Mechanism
Latch Engagement ( Bite )
Control Relay Adjustment
Lubrication
Dielectric Tests
Electrical Characteristics
Electrical Operating Sequence
DC Operating Sequence
DC Schematic Diagram of Control Circuit
AC Operating Sequence
AC Schematic Diagram of Control Circuit
Renewal Parts
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Summary of Contents for ABB VHK-R
Page 1
Courtesy of NationalSwitchgear.com...
Page 2: Table Of Contents
Courtesy of NationalSwitchgear.com...
Page 3: Introduction
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Page 4
Courtesy of NationalSwitchgear.com...
Page 5: Manual Operation Of Electrically Operated Models
Courtesy of NationalSwitchgear.com...
Page 6: Circuit Breaker Operation , Contact Adjustment And Timing
Courtesy of NationalSwitchgear.com...
Page 7: Operating Mechanism
Courtesy of NationalSwitchgear.com...
Page 8: Lubrication
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Page 9: Electrical Characteristics
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Page 10: Dc Schematic Diagram Of Control Circuit
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Page 11: Ac Operating Sequence
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Page 12: Ac Schematic Diagram Of Control Circuit
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Page 13: Renewal Parts
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Page 14
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Page 15
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Page 16
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