Page iv
I.B. 3A74792H08
Effective
09/2014
TABLE OF CONTENTS
SECTION 1: INTRODUCTION
Page
1-1 Preliminary Comments and Safety Precautions .......................................................................................... 1
1-1.1 Warranty and Liability Information ...................................................................................................... 1
1-1.2
Safety
Precautions ............................................................................................................................. 1
1-2 General
Information ..................................................................................................................................... 1
1-3
Type VCP-W and VCP-WC Vacuum Circuit Breaker Ratings .................................................................... 2
1-4 Outlines
and
Dimensions ............................................................................................................................. 6
SECTION 2: SAFE PRACTICES
2-1
Recommendations
.................................................................................................................................... 8
SECTION 2: RECEIVING, HANDLING AND STORAGE
3-1 General
........................................................................................................................................................ 9
3-2 Receiving
..................................................................................................................................................... 9
3-3 Handling
....................................................................................................................................................... 9
3-4 Storage
...................................................................................................................................................... 10
3-5 Tools
and
Accessories .............................................................................................................................. 11
3-6
Type VCP-W and VCP-WR Vacuum Circuit Breaker Weights .................................................................. 11
SECTION 4: INITIAL INSPECTION AND INSTALLATION
4-1
Introduction ................................................................................................................................................ 17
4-2
Manual Operation Check ........................................................................................................................... 17
4-3 Vacuum
Interrupter Integrity ...................................................................................................................... 17
4-4 Insulation
................................................................................................................................................... 17
4-5 Contact
Erosion and Wipe ......................................................................................................................... 17
4-6
Primary Circuit Resistance ........................................................................................................................ 17
4-7 Nameplate
................................................................................................................................................. 17
4-8 Electrical
Operation Check ........................................................................................................................ 17
4-8.1
Circuit Breaker Insertion and Removal .................................................................................... 18
4-8.2 Operation
Check Performance ................................................................................................ 19
4-9 Breaker/Structure Interfacing ..................................................................................................................... 19
4-9.1 Interface Interlocks .................................................................................................................. 19
4-9.2
Drawout Breaker Interfacing Check (VCP-W) ......................................................................... 19
SECTION 5: DESCRIPTION AND OPERATION
5-1 Introduction
................................................................................................................................................ 21
5-2 Interrupter Assembly.................................................................................................................................. 21
5-2.1 Vacuum
Interrupter .................................................................................................................. 22
5-2.2
Contact Erosion Indication ....................................................................................................... 22
5-2.3 Loading
Spring
Indication ........................................................................................................ 23
5-2.4 Contact
Wipe and Stroke ......................................................................................................... 23
5-3 Stored
Energy Mechanism ........................................................................................................................ 23
Summary of Contents for 380 VCP-W 21
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Page 22: ...Page 16 I B 3A74792H08 Effective 09 2014 Figure 3 7 Typical VCP W 38kV Escutcheon ...
Page 23: ...I B 3A74792H08 Page 17 Effective 09 2014 Figure 3 8 Typical VCP W 38kV Escutcheon ...
Page 33: ...I B 3A74792H08 Page 27 Effective 09 2014 compartment Figure 5 5 Charging Schematic ...
Page 38: ...Page 32 I B 3A74792H08 Effective 09 2014 Figure 5 10 Undervoltage Trip Device Configuration ...
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