• SWATI SHARMA
• Dr. RITULA THAKUR

Nanotechnology has the potential to be used in the transformer industry to enhance material properties which may lead to an efficient design of transformers and reduced manufacturing costs. Several types of nanoparticles were selected and added to mineral oil. Breakdown voltage, streamer propagation velocity, oxidation stability, permittivity, electrical resistivity, and dissipation factor were measured and studied. Results show that the dielectric properties of a modified liquid are strongly influenced by the type of nanoparticles added. With the addition of one type of nanoparticles, the breakdown voltage of the liquid is much increased. Transformer oil is refined electrical insulating oil, which is extremely stable at high temperatures and possesses excellent electrical insulating properties. These special types of oils are widely used in high-voltage apparatuses such as power transformers, high-voltage capacitors, and circuit breakers. Traditionally, mineral oils have been most commonly used as a coolant or as an electrical insulation medium. However, the main concern related to mineral oil is overheating, overloading, and short circuits that reduce the shelf life of the transformer unit and restrict its function as a reliable coolant. Moreover, other factors such as high electrical insulation requirements, safety, and economic aspects need to be considered for the development of new insulating liquid material. Nanofluids have become one of the alternatives for the existing products available in the market because of their high thermo-physical and good dielectric properties. This review focuses on the status of nanofluids, the effect of different nanoparticles to enhance the dielectric as well as the heat transfer properties of nanofluids.

transformer oil; Nano fluids; dielectric strength; heat transfer; coolant

"Investigation on Electrical characteristics of Mineral oil using nanoparticles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 11, page no.f719-f723, November-2022, Available :http://www.jetir.org/papers/JETIR2211594.pdf

"Investigation on Electrical characteristics of Mineral oil using nanoparticles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 11, page no. ppf719-f723, November-2022, Available at : http://www.jetir.org/papers/JETIR2211594.pdf