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ABB UCG Manuals
Manuals and User Guides for ABB UCG. We have
2
ABB UCG manuals available for free PDF download: Maintenance Manual, Repair Manual
ABB UCG Maintenance Manual (36 pages)
On-load tap-changer
Brand:
ABB
| Category:
Switch
| Size: 4.03 MB
Table of Contents
Table of Contents
6
1 Introduction
9
General
9
Maintenance Schedule
10
Inspection
10
Overhaul
10
Contact Replacement
12
Tightening Torque
12
2 Inspection
13
3 Overhaul
14
Required Tools and Materials
14
Procedure
14
Preparations
14
On-Load Tap-Changer Position
14
Disconnection and Earthing of the Transformer
15
Oil Volumes and Lifting Heights
15
Recommended Set of Spare Parts
15
Oil Testing and Oil Draining
15
Lifting and Cleaning the Diverter Switch
16
Cleaning
17
Cleaning the Diverter Switch Housing
17
Cleaning the Oil Filter in the Conservator Pipe (if Any)
17
Oil Filtration
17
Checking of the Breathing Device
17
Checking the Contact Positions
18
Checking the Contact Wear
20
Checking the Transition Resistors
20
Checking before Closing
20
Installation of the Diverter Switch
20
Checking and Replacing Supervisory Equipment
21
Lubrication of the On-Load Tap-Changer and the Drive Shaft System
22
Checking of the Motor-Drive Mechanism
22
Oil Filling
22
Filling Methods and Restrictions
22
Before Filling
22
Filling at Atmospheric Pressure
22
Oil Level
22
Restoring the Gas Cushion
23
Waiting Period
24
Check of Contact Timing
24
Putting into Operation
24
4 Contact Replacement
27
Dismantling the Boards
29
Dismantling the Moving Main Contacts
29
Dismantling the Moving Transition Contacts
31
Mounting the Moving Transition Contacts
32
Mounting the Moving Main Contacts
33
Replacing the Fixed Main Contacts
34
Replacing the Fixed Transition Contacts
34
Mounting the Boards with Transition Resistors and Fixed Contacts
34
5 Specification of Materials
35
General
35
Diverter Switch Housing
35
Diverter Switch
35
Tap Selectors
35
Conductors
35
Gearing Mechanism
35
Drive Shaft Systems
35
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ABB UCG Repair Manual (36 pages)
On-load tap-changer with motor-drive mechanisms
Brand:
ABB
| Category:
Industrial Equipment
| Size: 1.92 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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