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ABB UZE User Manual

ABB UZE
44 pages
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On-load tap-changers, type UZE and UZF,
with motor-drive mechanism, type BUF 3
Installation and commissioning guide
1ZSE 5492-115 en, Rev. 5

Table of Contents

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ABB UZE Specifications

General IconGeneral
BrandABB
ModelUZE
CategoryIndustrial Equipment
LanguageEnglish

Summary

WARNING, CAUTION and NOTE

WARNING

Provides information that, if disregarded, could cause injury or death.

CAUTION

Provides information that, if disregarded, could cause damage to the equipment.

Safety precautions

During drying of the transformer

Mounting of gaskets

During oil filling

After oil filling

During service

1.4 Oil conservator

1.7 Tightening torque

3. Drying

4. Installation on the transformer

4.1 Attaching the on-load tap-changer to the transformer

Methods for securing the tap-changer to the transformer tank.

5. Pressure relay

5.3 Checking when commissioning the transformer

Procedure for testing the pressure relay during commissioning.

6. Oil filling

7. Electrical connection and testing

7.2 Connecting and testing

Connecting power and performing operational tests.

7.3 Electrical tests on transformer

Performing acceptance and commissioning tests.

8. Transport

9. Commissioning

9.3 Electrical connection and testing

Performing final electrical connections and tests.

9.4 Putting into operation

Final steps to put the equipment into operation.

APPENDIX A. Welding and mounting instruction

A3 Welding and mounting instruction

Detailed steps for welding and mounting.

A3.2 Installing the on-load tap-changer and the motor-drive mechanism in the tank

Steps for installing both major components into the tank.

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