User Manuals: Eaton 50DHEP-VR Voltage Circuit Breakers

Manuals and User Guides for Eaton 50DHEP-VR Voltage Circuit Breakers. We have 1 Eaton 50DHEP-VR Voltage Circuit Breakers manual available for free PDF download: Instruction Handbook Manual

Eaton 50DHEP-VR Instruction Handbook Manual

Eaton 50DHEP-VR Instruction Handbook Manual (44 pages)

Replacement Circuit breaker

Brand: Eaton | Category: Circuit breakers | Size: 14 MB

Table of Contents

Table of Contents
3
Section 1: Introduction

4
Section 2: Safe Practices

11
Section 3: Receiving, Handling, and Storage

12
- Receiving
  12
- Handling
  12
- Storage
  13
- Approximate Weight by Type
  13
Section 4: Description and Operation

20
- Vacuum Interrupter
  20
- The Interrupter Assembly
  20
- Contact Erosion Indicator
  20
- Contact Wipe and Stroke
  21
- Phase Barriers
  21
- Bushings and Disconnecting Contact Assemblies
  21
- Stored Energy Mechanism
  21
- Closing Spring Charging
  22
- Closing Operation
  22
- Tripping Operation
  22
- Trip-Free Operation
  22
- Control Schemes
  22
- Timing
  24
- Secondary Connection Block
  24
- Interlocks
  24
- Breaker-Cell Coding Plates
  25
- Racking-In Interlock
  25
- Anti-Close Interlock
  25
- Floor Tripping and Closing Spring Release Interlocks
  25
- Rail Latch
  25
- Miscellaneous Items
  25
- Grounding Contact
  25
- Moc and Toc Operations
  26
- Operations Counter
  26
- Racking Device
  26
Section 5: Inspection & Installation

31
- Examination for Damage
  31
- Nameplate Verification
  31
- Sure Close Mechanism Adjustment
  
  31
  - Mechanism Operated Cell (Moc) Switch Pantograph Adjustment
    32
  - Manual Operation Check
    32
  - Vacuum Interrupter Integrity
    33
  - Insulation
    33
  - Contact Erosion and Wipe
    33
  - Primary Circuit Resistance
    33
  - Snubber Adjustment
    33
  - Electrical Operations Check
    33
  - Racking Breaker into Cell
    34
  - Removing Breaker from Cell
    34
Section 6: Inspection & Maintenance

35
- Inspection Frequency
  35
- Inspection and Maintenance Procedures
  35
- Vacuum Interrupter Integrity Test
  36
- Contact Erosion and Wipe
  36
- Insulation
  37
- Insulation Integrity Check
  37
- Primary Circuit Resistance Check
  38
- Mechanism Check
  38
- Closure™ Test
  38
- Lubrication
  41
Section 7: Replacement Parts

43
- General
  43
- Ordering Instructions
  43

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