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IEEE C57.139-2015

IEEE Guide for Dissolved Gas Analysis in Transformer Load Tap Changers

standard by IEEE , 04/29/2016

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Full Description

Scope

This guide discusses and recommends methods of testing and evaluating dissolved gases in mineral based transformer oils found in load tap changers (LTCs). General types of LTC mechanisms, breathing configurations, and electrical design will be included for evaluation criteria in determining when mechanical damage or failure has occurred. Dissolved gas analysis (DGA) of the oil in the LTC is required. This guide is not manufacturer specific, rather category specific.

Purpose

The purpose of this guide is to assist the responsible parties who are in charge of the operation and maintenance decisions in evaluating the condition of an LTC without the need to de-energize the transformer to inspect the LTC in question. Additionally, repairs to the LTC can be made in a timely fashion based on accurate interpretation of the gas analysis, minimizing premature repairs or post failure rebuilds.

Abstract

Revision Standard - Active. General types of load tap changer (LTC) mechanisms, breathing configurations, and electrical designs, described for reference for determining methods of testing and evaluating dissolved gases in mineral-based transformer oils in LTCs, are discussed and recommended in this guide. Measurements of dissolved gas concentrations in the LTC oil are required to implement this guide. This guide is not manufacturer specific, rather category specific. ** Downloads file posted at http://standards.ieee.org/downloads/C57/C57.139-2015/
 

Product Details

Published:
04/29/2016
ISBN(s):
9781504406536, 9781504420129, 9781504406529
Number of Pages:
45
File Size:
1 file , 3.3 MB
Product Code(s):
STD20773, STDPD20773, STDPL20773
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. IEEE C57.139-2015

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    IEEE Guide for Dissolved Gas Analysis in Transformer Load Tap Changers

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  2. IEEE C57.139-2010


    IEEE Guide for Dissolved Gas Analysis in Transformer Load Tap Changers

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