I.B. 3A74792H04
Page iv
Effective 7/97
TABLE OF CONTENTS
Page
SECTION 1:
INTRODUCTION
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 Vacuum Circuit Breaker Ratings (Table 1.1) .................................................................................2
1-4
Outlines and Dimensions ....................................................................................................................................3
SECTION 2:
SAFE PRACTICES
2-1
Recommendations ..............................................................................................................................................4
SECTION 3:
RECEIVING, HANDLING AND STORAGE
3-1
General ...............................................................................................................................................................5
3-2
Receiving.............................................................................................................................................................5
3-3
Handling ..............................................................................................................................................................5
3-4
Storage ...............................................................................................................................................................6
3-5
Tools and Accessories ........................................................................................................................................7
3-6
Type VCP-W Vacuum Circuit Breaker Weights (Table 3.1) ................................................................................7
SECTION 4:
INITIAL INSPECTION AND INSTALLATION
4-1
Introduction........................................................................................................................................................12
4-2
Manual Operation Check...................................................................................................................................12
4-3
Vacuum Interrupter Integrity..............................................................................................................................12
4-4
Insulation ...........................................................................................................................................................12
4-5
Contact Erosion and Wipe.................................................................................................................................12
4-6
Primary Circuit Resistance ................................................................................................................................12
4-7
Nameplate .........................................................................................................................................................12
4-8
Electrical Operation Check................................................................................................................................13
4-8.1
Circuit Breaker Insertion and Removal.................................................................................................13
4-8.2
Operation Check Performance .............................................................................................................14
4-9
Breaker/Structure Interfacing ............................................................................................................................14
4-9.1
Interface Interlocks ...............................................................................................................................14
4-9.2
Interfacing Check .................................................................................................................................14
SECTION 5:
DESCRIPTION AND OPERATION
5-1
Introduction........................................................................................................................................................16
5-2
Interrupter Assembly .........................................................................................................................................16
5-2.1
Vacuum Interrupter...............................................................................................................................17
5-2.2
Contact Erosion Indication ...................................................................................................................17
5-2.3
Loading Spring Indication .....................................................................................................................18
5-2.4
Contact Wipe and Stroke .....................................................................................................................18
5-3
Stored Energy Mechanism ................................................................................................................................18
5-3.1
Operation of Stored Energy Mechanism ..............................................................................................18
5-3.2
Charging ...............................................................................................................................................18
Summary of Contents for Cutler-Hammer VCP-W
Page 2: ......
