Methods of gas analysis in mineral and essential oils for power transformers
https://doi.org/10.30724/1998-9903-2025-27-5-3-12
Abstract
RELEVANCE. Recently, power transformers with mineral biodegradable insulating oil have been increasingly used, since it is environmentally friendly and biodegradable. Power transformers are the main and extremely important equipment in electric power systems. METHODS. Diagnostic methods are of particular importance for the stable operation of the system. Gas analysis (GA) of mineral oil has its own diagnostic methods that cannot be directly applied to other oils. RESULTS. The relationship between gas evolution and destructive processes occurring in mineral oil is considered. In this study, tests were carried out for local heating, partial discharge and arc discharge in oil to study gas formation under these conditions. Based on the results obtained, gas formation mechanisms were discussed depending on the heating temperature, discharge energy and other factors. CONCLUSION. The methods proposed in this paper, based on experimental data, are important, since they indicate promising areas for diagnosing mineral oils. The accuracy of these methods can be improved by optimization using data from operating transformers.
About the Authors
E. S. Hilles Feras
Kazan State Power Engineering University
Russian Federation
Russian Federation
Hilles Feras E.S.
Kazan
R. N. Khizbullin
Kazan State Power Engineering University
Russian Federation
Russian Federation
Robert N. Khizbullin
Kazan
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Review
For citations:
Hilles Feras E.S., Khizbullin R.N. Methods of gas analysis in mineral and essential oils for power transformers. Power engineering: research, equipment, technology. 2025;27(5):3-12. (In Russ.) https://doi.org/10.30724/1998-9903-2025-27-5-3-12
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