Guide for Transformer Maintenance

A new version of this Technical Brochure has been published: TB 962

Maintenance, availability and reliability are closely related and the transformer user has to specify a maintenance level that will ensure an acceptable reliability. This guide will help users to define and apply best maintenance: best practice, component selection, checking and testing in order to evaluate condition, time intervals for the various actions, advanced maintenance activities, human and material aspects of transformer maintenance.

Introduction

CIGRE Technical Brochure 445, developed by Working Group A2.34, provides comprehensive guidance on the maintenance of power transformers rated 69 kV and above and larger than 25 MVA, while offering principles applicable to transformers of all ratings. The brochure…