Experimental Study of Dielectric and Physical Properties of Blended Coconut Oil and Mineral Oil with Graphene Oxide Nanomaterial

Khandai, Sujit; Biswas, Subrata; Prasath, R T Arun Ram; Kumbhakar, Pathik; Roy, Nirmal Kumar

doi:10.1109/catcon56237.2022.10077629

2022 IEEE 6th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON) 2022

DOI: 10.1109/catcon56237.2022.10077629

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Experimental Study of Dielectric and Physical Properties of Blended Coconut Oil and Mineral Oil with Graphene Oxide Nanomaterial

Sujit Khandai

Subrata Biswas

R T Arun Ram Prasath³

et al.

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2024

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Experimental studies on insulating oils for power transformer applications

Khandai,

D.,

Roy

2024

International Journal of Emerging Electric Power Systems

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In recent days, ester-based alternatives like natural and synthetic oils are preferred as an alternative to mineral oil by the power industry due to its higher bio-degradability, superior thermal conductivity, and fire resistance than mineral oil. In addition to this, blended oils are quite attractive because of its low dielectric loss and a low ratio of degradation. The present research deals with the experimental studies on different insulating oils like mineral oil, synthetic ester oil, coconut oil, blended oils, and nanofluids, which are developed from ZnO and TiO2 nanoparticle doped at 0.01 vol% in different insulating oils through ultrasonication process. In this experiment, the critical properties like electrical and physicochemical properties are examined according to International Electrotechnical Commission and American Society for Testing and Materials standards. Results show that ZnO and TiO2 nano-powder enhances the AC breakdown voltage (BDV), dielectric permittivity, and DC resistivity properties of different insulating oils with improved flash and fire resistance. Remarkably, it is found that mineral oil-based TiO2 nanofluid shows an enhancement of 55.8 % in AC BDV, 9.1 % in permittivity, and 15 % in flash resistance. Moreover, mineral oil based ZnO and TiO2 nanofluid results exhibit remarkable decrement in loss tangent with increased DC resistance property. Finally, it is observed that the influence of TiO2 nano-powder at 0.01 vol% remarkably enhances the electrical and physicochemical properties in different insulating oils compared to ZnO nanofluids. Hence, mineral oil and green insulating based synthetic ester oil (which is based on TiO2 nanofluids) have been considered as a potential candidate to make alternatives to traditional insulating oil for power transformer applications. The findings offer critical insights for the future of transformer insulation systems, guiding industry standards and fostering innovation in material science.

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Experimental studies on insulating oils for power transformer applications

Khandai,

D.,

Roy

2024

International Journal of Emerging Electric Power Systems

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show abstract

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Experimental Study of Dielectric and Physical Properties of Blended Coconut Oil and Mineral Oil with Graphene Oxide Nanomaterial

Cited by 1 publication

References 17 publications

Experimental studies on insulating oils for power transformer applications

Experimental studies on insulating oils for power transformer applications

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