Active PAR

PC57.139

Guide for the Interpretation of Gases generated in Liquid-Type Load Tap Changers

This guide describes methods of evaluating dissolved gases in insulating liquids used with load tap changers (LTCs). General types of LTC mechanisms, breathing configurations, and electrical design are included for evaluation criteria in determining when mechanical damage, deterioration or failure might have occurred.

Sponsor Committee
PE/TR - Transformers
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Status
Active PAR
PAR Approval
2022-03-24
Superseding
C57.139-2015

Working Group Details

Society
IEEE Power and Energy Society
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Sponsor Committee
PE/TR - Transformers
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Working Group
InsFluid-WG57.139 - Insulating Fluids - DGA in LTCs Working Group
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IEEE Program Manager
Malia Zaman
Contact
Working Group Chair
Rainer Frotscher
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C57.139-2015

IEEE Guide for Dissolved Gas Analysis in Transformer Load Tap Changers

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/

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C57.139-2010

IEEE Guide for Dissolved Gas Analysis in Transformer Load Tap Changers

Methods of testing and evaluating dissolved gases in mineral based transformer oils found in Load Tap Changers (LTCs) are discussed and recommended in this guide. General types of LTC mechanisms, breathing configurations and electrical design are included as evaluation criteria for determining when mechanical damage or failure has occurred. Dissolved Gas of the LTC is required. This guide is not manufacturer specific, rather category specific. Additional files for download can be found at http://standards.ieee.org/downloads/C57/C57.139-2010/

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