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eISSN: 2581-9615 || CODEN: WJARAI || Impact Factor 8.2 ||  CrossRef DOI

Research and review articles are invited for publication in March 2026 (Volume 29, Issue 3) Submit manuscript

Partial discharge characteristics of thermally aged mineral oil and eco-friendly vegetable oil under uniform electric field

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  • Partial discharge characteristics of thermally aged mineral oil and eco-friendly vegetable oil under uniform electric field

Girish S K *, B V Sumangala and Pradeep N

Department of Electrical &Electronics Engineering, Sri Siddhartha Institute of Technology, Sri Siddhartha Academy of Higher Education, Tumakuru, Karnataka, India.

Research Article

World Journal of Advanced Research and Reviews, 2025, 25(01), 738-746

Article DOI: 10.30574/wjarr.2025.25.1.4013

DOI url: https://doi.org/10.30574/wjarr.2025.25.1.4013

Received on 21 November 2024; revised on 28 December 2024; accepted on 31 December 2024

Partial discharge (PD) detection plays an important role in the life assessment of liquid insulation in transformers. This paper investigates on the PD activity and characteristics in thermally aged mineral oil and eco-friendly rice bran and Sesame oils. To simulate surface discharges, plane-plane electrode configuration with pressboard of 1mm and 3mm thickness was used. The phase resolved PD patterns of thermally aged rice bran oil, sesame oil and mineral oil with pressboard were recorded and analyzed. From the results it is observed that the inception voltage of eco-friendly vegetable oils is higher than mineral oil. Also vegetable oil shows better PD characteristics hence they can be used for high voltage insulation applications.

Phase Resolved PD; PD Inception Voltage; Peak charge; Average charge; Number of pulses

https://wjarr.com/sites/default/files/fulltext_pdf/WJARR-2024-4013.pdf

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Girish S K, B V Sumangala and Pradeep N. Partial discharge characteristics of thermally aged mineral oil and eco-friendly vegetable oil under uniform electric field. World Journal of Advanced Research and Reviews, 2025, 25(1), 738-746. Article DOI: https://doi.org/10.30574/wjarr.2025.25.1.4013

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