Construction of a transformer DGA health index based on DGA screening processes

Hosseini, Michael and Stewart, Brian G. and Kearns, Martin and Torenvliet, Nick; (2020) Construction of a transformer DGA health index based on DGA screening processes. In: 2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP). IEEE, USA, pp. 1-4. ISBN 9781728195735 (https://doi.org/10.1109/CEIDP49254.2020.9437537)

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Abstract

An automated transformer dissolved gas analysis evaluation system based on the recently released IEEE Standard C57.104-2019 for mineral oil-immersed transformers is implemented and its outputs demonstrated. The system includes diagnostic capabilities using the Duval Triangles 1-4-5 and Rogers Ratio method. In addition, a Health Index derived from the above Standards is proposed as a compact, yet informative metric for tracking transformer health. Finally, some of the challenges in developing such an implementation are highlighted.