Table Of Contents - Eaton Cutler-Hammer VCP-WR 18 Series Instructions For The Use, Operation And Maintenance

Red line vacuum circuit breaker elements

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Instructions for the use, operation and maintenance (71 pages)

Table of Contents

Page iv

SECTION 1

INTRODUCTION ..................................................................................................................................1

1-1

Type VCP-WR (Red Line Series) Ratings.........................................................................................................1

1-2

Type VCP-WR Outlines and Dimensions..........................................................................................................2

SECTION 2

SAFE PRACTICES ..............................................................................................................................9

SECTION 3

RECEIVING, HANDLING AND STORAGE .......................................................................................10

3-1

Receiving.........................................................................................................................................................10

3-2

Handling ..........................................................................................................................................................10

3-3

Storage ...........................................................................................................................................................10

3-4

Type VCP-WR Breaker Weights .....................................................................................................................11

SECTION 4

INSPECTION AND OPERATION ......................................................................................................19

4-1

Initial Inspection...............................................................................................................................................19

4-2

Manual Operation Check.................................................................................................................................19

4-3

Interface Verification........................................................................................................................................19

SECTION 5

DESCRIPTION AND OPERATION....................................................................................................20

5-1

Circuit Breaker Elements.................................................................................................................................20

5-2

Interrupter Assembly .......................................................................................................................................20

5-2.1

Vacuum Interrupter.............................................................................................................................20

5-2.2

Contact Erosion Indicator ...................................................................................................................22

5-2.3

"T" Cutout Loading Spring Indicator ...................................................................................................23

5-2.4

Contact Wipe and Stroke ...................................................................................................................23

5-3

Stored Energy Mechanism ..............................................................................................................................23

5-3.1

Operation of Stored Energy Mechanism ............................................................................................23

5-3.2

Charging .............................................................................................................................................24

5-3.3

Closing Operation...............................................................................................................................24

5-3.4

Tripping Operation..............................................................................................................................24

5-3.5

Trip Free Operation ............................................................................................................................24

5-4

Control Schemes.............................................................................................................................................24

5-4.1

Timing.................................................................................................................................................27

5-4.2

Terminal Blocks ..................................................................................................................................27

5-5

Operations Counter .........................................................................................................................................27

I.B. 8295A61H03

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Effective 7/97