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Exploration of AC breakdown voltage properties of coconut oil blended with MIDEL 7131

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Abstract

To decrease the insulation requirements and cost of transformers, the global transformer industry has been relentlessly striving to narrow the gap between net electrical stresses and dielectric withstand capability. One promising solution for high power density equipment is to blend coconut oil (CO) with the high-performance synthetic ester 'MIDEL 7131' fluid. In this study, the AC breakdown characteristics of various CO and MIDEL 7131 blends were analyzed, and it was determined that the most optimized AC breakdown performance under both new and aged conditions was achieved with a 40% volume of MIDEL 7131.

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Acknowledgements

The author would like to thank AICTE, New Delhi, India, for funding the research grant under Research Promotion Scheme for North Eastern Region (Ref. No. 8-144/RIFD/RPS-NER/Policy-1/2018-19). Author would also like to thank M&I Materials Ltd. U.K., for their generous support by providing the MIDEL 7131.

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  1. Department of Electrical Engineering, NERIST, Nirjuli, Arunachal Pradesh, 791109, India

    Anu Kumar Das

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Anu Kumar Das is the sole author of this work and has contributed to the following: Conceptualization; Data curation; Formal analysis; Funding acquisition; Investigation; Methodology; Project administration; Resources; Software; Supervision; Validation; Visualization; Roles/Writing - original draft; Writing - review & editing.

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Correspondence to Anu Kumar Das.

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Das, A.K. Exploration of AC breakdown voltage properties of coconut oil blended with MIDEL 7131. Electr Eng 106, 215–224 (2024). https://doi.org/10.1007/s00202-023-01983-4

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