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IEEE C57.140-2017

Current Revision

IEEE Guide for Evaluation and Reconditioning of Liquid Immersed Power Transformers

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Revision Standard - Active. Guidelines for the following are included in the standard: insulating liquid maintenance and diagnostics, liquid reclamation, testing methods for the determination of remaining insulation (paper) life, and upgrades of auxiliary equipment such as bushings, gauges, de-energized tap changers (DETCs), load tap changers (LTCs) (where applicable), and coil re-clamping. The goal of this guide is to assist the user in extending the useful life of a transformer.
This document provides guidelines for the following: insulating oil maintenance and diagnostics, oil reclamation, testing methods for the determination of remaining insulation (paper) life, and upgrades of auxiliary equipment such as bushings, gauges, de-energized tap changers (DETCs), load tap changers (LTCs) (where applicable), and coil re-clamping. The goal of this guide is to assist the user in extending the useful life of a transformer.
The purpose of this guide is to provide guidelines for evaluation and reconditioning of transformers. This guide should prove helpful to users who do have evaluation and reconditioning programs in place, and who may not be aware of other activities and processes that are available. The guide is intended as a comprehensive document to aid users in selecting the proper approaches to upgrading, reconditioning, refurbishing, or other activities in extending the useful life of a transformer.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number C57.140
Publication Date Oct. 31, 2017
Language en - English
Page Count 88
Revision Level
Supercedes
Committee Transformers
Publish Date Document Id Type View
Oct. 31, 2017 C57.140-2017 Revision
April 27, 2007 C57.140-2006 Revision