Eaton Cutler-Hammer W-VAC Manuals

Eaton Cutler-Hammer W-VAC Manuals

Manuals and User Guides for Eaton Cutler-Hammer W-VAC. We have 1 Eaton Cutler-Hammer W-VAC manual available for free PDF download: Instructions For Installation, Operation And Maintenance

Eaton Cutler-Hammer W-VAC Instructions For Installation, Operation And Maintenance

Eaton Cutler-Hammer W-VAC Instructions For Installation, Operation And Maintenance (48 pages)

36kV Vacuum Circuit Breakers

Brand: Eaton | Category: Circuit breakers | Size: 1 MB

Table of Contents

Table of Contents
4
Section 1: Introduction

7
Safe Practices

10
- Recommendations
  10
Receiving, Handling and Storage

11
Initial Inspection and Installation

18
- Introduction
  18
- Manual Operation Check
  18
- Vacuum Interrupter Integrity
  18
- Insulation
  18
- Contact Erosion and Wipe
  18
- Primary Circuit Resistance
  18
- Nameplate
  18
- Type W-VAC Circuit Breaker Manual Charging Handle in Use
  18
- Electrical Operation Check
  19
  - 4-8.1 Circuit Breaker Insertion and Removal
    19
  - 4-8.2 Operation Check Performance
    20
- Breaker/Structure Interfacing
  20
  - 4-9.1 Interface Interlocks
    20
  - 4-9.2 Interfacing Check
    20
Description and Operation

22
- Introduction
  22
- Interrupter Assembly
  22
- Rear View Showing Pole Unit Enclosure
  22
- Plate over Rear Truck Opening 2000A Breakers and above
  22
  - 5-2.1 Vacuum Interrupter
    23
  - 5-2.2 Contact Erosion Indication
    23
- Graphic Representation of Arc Interruption
  23
  - 5-2.3 Loading Spring Indication
    24
  - 5-2.4 Contact Wipe and Stroke
    24
- Stored Energy Mechanism
  24
  - 5-3.1 Operation of Stored Energy Mechanism
    24
  - 5-3.2 Charging
    24
- Closing Cam and Trip Linkage
  25
  - 5-3.3 Closing Operation
    26
  - 5-3.4 Tripping Operation
    26
- Control Schemes
  26
  - 5-4.1 Timing
    26
- Charging Schematic
  27
- Typical 36Kv W-VAC "DC" and "AC" Control Schematics
  28
  - 5-4.2 Secondary Disconnects
    29
  - 5-4.3 Undervoltage Trip Device
    29
- Secondary Circuit Breaker Plug Shown Mounted Lower Left
  29
- Circuit Breaker Timing
  29
- Interlocks and Interfacing
  30
- Levering Mechanism
  30
- Operations Counter
  30
- Ground Contact
  30
- MOC and TOC Switch Operations
  30
- Undervoltage Trip Device Configuration
  31
Inspection, Maintenance and Troubleshooting

32
Renewal Parts

42
- General
  42
  - 7-1.1 Ordering Instructions
    42
- Recommended Renewal Parts for ANSI Rated Breakers
  42

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