A Review of Adding Nanoparticles on the Electrical and Thermal Properties of Transformer Oil

Abstract

Many high-voltage devices use mineral or synthetic oil combined with paper as their primary dielectric medium. However, since high voltage levels like high voltage alternating current (HVAC) and high voltage direct current (HVDC) have emerged, researchers have begun concentrating on an insulation system that can withstand the rising high voltage levels. High electrical insulation requirements and other safety and financial considerations are some of the issues that influence the development of liquid insulating materials today. As a result, companies that make transformers must design them to meet these new specifications. The opportunity exists for mineral oil base products to be replaced by nanofluids based on transformer oil that have better dielectric and thermal properties. They are advantageous since they perform better than mineral oil and offer real insulating and heating benefits. This paper examines the most recent developments in using nanofluids as transformer oils. The advantages of nanofluids over mineral oil are discussed in their use as transformer oils. An overview of the present research on nanofluids is given by describing the numerous experimental activities undertaken by various researchers. Additionally, this research field's scope and difficulties are made apparent.