ABB BUF 3 On-load tap-changer Manuals

Manuals and User Guides for ABB BUF 3 On-load tap-changer. We have 1 ABB BUF 3 On-load tap-changer manual available for free PDF download: Repair Manual

ABB BUF 3 Repair Manual

ABB BUF 3 Repair Manual (28 pages)

On-load tap-changers with motor-drive mechanism

Brand: ABB | Category: Industrial Equipment | Size: 0.38 MB

Table of Contents

Table of Contents
7
1 Introduction

9
- General
  9
- Repair Categories
  9
- Serial Number
  9
- Spare Parts List
  10
- Maintenance Guide
  11
- Tightening Torque
  11
2 Trouble-Shooting

12
- On-Load Tap-Changer
  12
- Pressure Relay
  12
  - Trouble-Shooting
    13
- Motor-Drive Mechanism
  14
  - Control System
    14
  - Power System
    16
  - Miscellaneous
    16
3 Repairs and Adjustments

19
- Replacement of Gasket between Insulating Board and Selector Switch Unit
  19
  - General
    19
  - Tools Required
    19
  - Material and Spare Parts Required
    19
  - Procedure
    20
- Replacement of Gaskets between Barrier Board of Steel and Selector Switch Unit
  22
  - General
    22
- Replacement of Front Cover and Top Cover Gaskets
  22
  - Tools Required
    22
  - Material and Spare Parts Required
    23
  - Procedure
    23
- Changing the End Stops in Motor-Drive Mechanism
  23
  - General
    23
  - Tools Required
    23
  - Material and Spare Parts Required
    24
  - Procedure
    24
- Replacement of Maintaining Contact
  26
  - Tools Required
    26
  - Spare Parts Required
    26
  - Procedure
    26
- Replacement of Pressure Relay
  26
  - General
    26
  - Spare Parts Required
    27
  - Procedure
    27

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