Fault gas generation in natural-ester fluid under localized thermal faults
- 12 November 2012
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Electrical Insulation Magazine
- Vol. 28 (6), 45-56
- https://doi.org/10.1109/mei.2012.6340524
Abstract
In this article, the generation of fault gases in FR3 fluid was investigated under various thermal stresses using a sealed vessel with full fluid circulation, and the results were compared with Gemini X under similar conditions. The DGA measurements from an online dissolved-gas monitor were generally comparable with laboratory analysis. The FR3 is more thermally stable than Gemini X, as indicated by less free gas-bubble formation, less violent fluid convection, and less fault gas generation above 300°C.Keywords
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