IEEE Standards Association
IEEE Project
PC57.139 - Guide for Dissolved Gas Analysis in Transformer Load Tap Changers
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 are 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.
- Status:
Sponsor: PE/TR - Transformers 
Society: PE - IEEE Power and Energy Society
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