Power Transformer Maintenance and Acceptance















Power Transformer Maintenance and Acceptance
Testing



Download

TABLE OF CONTENTS

INTRODUCTION / SAFETY

Purpose

scope

References

Maintenance and tesdng

safety

Nameplatedata



CONSTRUCTIONlTHEORY

Transfomer applications

Magnetic flux

Winding,current and voltage ratios

Core construction

Core form construction

Shell form construction

TRANSFORMER CONNECTIONS AND TAPS

Tapped Primaries and secondaries

Polarity

Autotransfomers

Single and multi-phase relationships

Delta-wye and wye-delta displacements



COOLING CONSTRUCTION CLASSIFlCATIONS

Classifications

Dry-type transfomers

Liquid-filled transformers

Tank construction

Free breathing tanks

Consevator tank

Gas-oil sealed tank

Automatic inet gas sealed tanks

Sealed tank type



INSULATING FLUIDS

Oil

Oil testing

Dissolved gas in oil analysis

Transformer oil sampling

Synthetics and other insulating fluids



INITIAL ACCEPTANCE INSPECTION TESTING

Acceptance

Pre arrival preparations

Receiving and inspection

Moving and storage

Internal inspection

Testing for leaks

Vacuum filling



TRANSFORMER TESTING

Test data

Direc tcurrent testing

Alternating current testing



TRANSFORMER AUXILIARY EQUIPMENT

Auxiliaries

Bushings

Pressure relief devices

Pressure gauges

Temperature gauges

Tap changers

Lightning (surge) arresters



COMPREHENSIVE MAlNTENANC / TESTING PROGRAM

Transformer maintenance

Maintenance and testing program

Documentation

Scheduling



STATUS OF TRANSFORMER MONITORING AND DIAGNOSTICS

Introduction

Transformer Monitoring

Transformer diagnostics

Conclusions

REFERENCES














0 comments:

Post a Comment

I thank you for taking time to visit my blog. I appreciate your comment which motivates me and also helps me improve the contents on my Blog.
Your comments also make these posts much more interesting to read. Please do continue to leave your views and if you have any queries regarding my recipes I would do my best to reply to them ASAP.

Cheers
Analog Designer

Related Posts

  © Blogger templates by Template-Service

Back to TOP