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Chapter 1. Introduction
1-1
Safety ...................................................................................................................... 6
1-2
Maintenance ........................................................................................................... 6
Chapter 2. Description
Chapter 3. Receiving, Handling & Storage
3-1
Receiving ................................................................................................................ 8
3-2
Handling .................................................................................................................. 8
3-3
Storage .................................................................................................................... 8
3-4
Safety Precautions .................................................................................................. 8
3-5
Unpacking the Breaker ............................................................................................ 8
3-6
Safety Interlocks ...................................................................................................... 9
Positive Interlock System ....................................................................................... 9
Interference Bolts .................................................................................................. 10
Chapter 4. Installation
4-1
Breaker Preparation ............................................................................................... 11
4-2
Equipment Test Position ....................................................................................... 11
4-3
Positive Interlock System .................................................................................... 11
4-4
Checking for Proper Interlock ............................................................................... 12
4-5
Primary Contact Penetration ................................................................................. 14
4-6
Stationary Auxiliary Switch (MOC) ....................................................................... 16
4-7
Stops ...................................................................................................................... 16
4-8
Ground ................................................................................................................... 16
4-9
Secondary Coupler ................................................................................................ 17
4-10 Position Switch ..................................................................................................... 17
Chapter 5. Operation
5-1
Description ............................................................................................................ 18
5-2
Close Spring Charging ....................................................................................... 19
5-3
Trip-Free Operation .............................................................................................. 20
5-4
Closing Operation ................................................................................................. 20
5-5
Opening Operation ................................................................................................ 21
Chapter 6. Control Circuit
6-1
Typical Wiring Controls ........................................................................................ 22
Chapter 7. Mechanical Check and Slow Close
7-1
Visual Inspection .................................................................................................. 25
7-2
Closing Spring Charging ...................................................................................... 25
7-3
Closing Spring Gag .............................................................................................. 25
7-4
Slow Closing ......................................................................................................... 25
7-5
Gag Tool Removal ................................................................................................. 25
Chapter 8. Dimensional Checks
8-1
Primary Contact Erosion ....................................................................................... 26
8-2
Spring Wipe Indicator .......................................................................................... 26
8-3
Contact Gap ........................................................................................................... 27
Courtesy of NationalSwitchgear.com
.................................................................................................................... 7
3
PowerVac
5kV Vertical Lift
®
Table of Contents
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