ABB UCD Manuals

Manuals and User Guides for ABB UCD. We have 1 ABB UCD manual available for free PDF download: Repair Manual

ABB UCD Repair Manual

ABB UCD Repair Manual (36 pages)

On-load tap-changer with motor-drive mechanisms

Brand: ABB | Category: Industrial Equipment | Size: 1 MB

Table of Contents

Table of Contents
7
1 Introduction

9
- General
  9
- Repair Categories
  9
- Serial Number
  11
- Spare Parts List
  11
- Maintenance Guide
  12
- Tightening Torque
  12
2 Trouble-Shooting

13
- On-Load Tap-Changer
  13
- Pressure Relay
  14
- Motor-Drive Mechanism
  15
  - Control System
    15
  - Power System
    17
  - Miscellaneous
    17
3 Repairs and Adjustments

22
- Replacement of Gear Box on the On-Load Tap-Changer or Replacement of O-Rings for the Gear Box
  22
  - General
    22
  - Tools Required
    22
  - Material and Spare Parts Required
    22
  - Procedure
    23
- Replacement of Diverter Switch Housing Cover Gasket
  27
  - General
    27
  - Tools Required
    27
  - Material and Spare Parts Required
    27
  - Procedure
    27
- Restoring the Gas Cushion
  28
  - General
    28
  - Equipment Required
    28
  - Procedure
    28
- Replacement or Addition of a Multi-Position Switch (BUL Only)
  30
  - General
    30
  - Tools Required
    30
  - Procedure
    30
- Examination of the Diverter Switch after a Pressure Relay Trip
  32
  - Tools and Material Required
    32
  - Procedure
    32
- Tests of the Pressure Relay
  33
- Replacement of Pressure Relay
  34
  - General
    34
  - Tools Required
    34
  - Spare Parts Required
    34
  - Procedure
    34

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