Comparison of Dissolved Gas Analysis Interpretation Methods for Power Transformer

Dhiastara Rahmanda; Suwarno Suwarno

Dhiastara Rahmanda School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, Indonesia
Suwarno Suwarno School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, Indonesia

Keywords: Transformer, Dissolved Gas Analysis, Mineral Oil, IEEE C57.104-2019, IEC 60599-2022

Abstract

In this works, a comparison is made regarding the interpretation of Dissolved Gas Analysis for power transformer using IEEE C57.104-2019, IEEE C57.104-2008, and IEC 60599-2022. The purpose of this work is to know which typical value from those standards that more in line with the actual conditions of the power transformer. The database that is used to make this comparison is 125 DGA data mineral oil from 50 power transformers that are in operation. The DGA database has been confirmed by further testing to find out more about the actual condition of the power transformer. From the comparison results, the interpretation using IEC 60599-2022 has the highest accuracy, followed by IEEE C57.104-2008, then IEEE C57.104-2019. The reason for that result is because in IEEE C57.104-2019 there are typical values that are quite strict, especially on the value of Delta and Gas Rates.

References

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