Eaton AMH-4.76-VR+ Manuals

Manuals and User Guides for Eaton AMH-4.76-VR+. We have 1 Eaton AMH-4.76-VR+ manual available for free PDF download: Instruction Book

Eaton AMH-4.76-VR+ Instruction Book

Eaton AMH-4.76-VR+ Instruction Book (34 pages)

Replacement Circuit Breaker

Brand: Eaton | Category: Circuit breakers | Size: 6.15 MB

Table of Contents

Table of Contents
3
Section 1: Introduction

4
Section 2: Safe Practices

7
Section 3: Receiving, Handling, and Storage

8
- Receiving
  8
- Handling
  8
- Amh-4.76-Vr + Approximate Weights
  9
Section 4: Description and Operation

12
- Vacuum Interrupter
  12
- Vacuum Interrupter Assembly
  12
- Contact Erosion Indicator
  12
- Contact Wipe and Stroke
  13
- Phase Barriers
  13
- Bushings and Disconnecting Contact Assemblies
  13
- Stored Energy Mechanism
  13
- Closing Spring Charging
  13
- Closing Operation
  13
- Tripping Operation
  14
- Trip-Free Operation
  14
- Control Schemes
  14
- Timing
  14
- Secondary Connection Block
  14
- Interlocks
  14
- Anti-Close Interlock
  14
- Racking System Trip and Spring Release Interlocks
  14
- Active Interlock
  15
- Shutter Interlock
  15
- Miscellaneous Items
  15
- Operations Counter
  15
- Moc Operator
  15
Section 5: Inspection & Installation

20
- Examination for Damage
  20
- Nameplate Verification
  20
- Sure Close Mechanism Adjustment
  20
- Manual Operation Check
  21
- Vacuum Interrupter Integrity
  21
- Low Frequency Withstand Test (Insulation Check)
  21
- Contact Erosion and Wipe
  21
- Primary Circuit Resistance
  21
- Electrical Operations Check
  21
- Description of Operational Positions
  22
- Insertion Procedure
  22
- Removal Procedure
  23
Section 6: Inspection & Maintenance

24
- Inspection Frequency
  24
- Inspection and Maintenance Procedures
  24
- Vacuum Interrupter Integrity Test
  25
- Contact Erosion and Wipe
  25
- Insulation
  26
- Insulation Integrity Check
  26
- Primary Circuit Resistance Check
  26
- Vr-Series + Circuit Breaker Element Mechanism
  
  26
  - Check
    26
  - Closure™ Test
    26
  - Maintenance Recommendation
    30
Section 7: Replacement Parts

32
- General
  32
- Ordering Instructions
  32

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