Performance analysis on nano modified eco friendly pongamia ester oil as alternative liquid insulation for transformers

Abstract

The essential infrastructure of a power transformer unit comprises its core components, solid insulation, and liquid insulation. Among these, oil-filled transformers are the predominant choice for a wide range of power and distribution network applications across various voltage levels. Consequently, a significant portion of transformer failures can be traced back to the dielectric liquid, which is sourced from petroleum and boasts exceptionally high dielectric strength. The heart of an electrical system network is power transformers, and its livelihood is insulating oil, which provides insulation and cooling to the transformers. The elements of insulating oil determine the electrical properties of the oil, and the properties of the insulating oil can be optimized by bringing in nanofluid. The chief aim of this work is to analyze the impact of Fe3O4, ZnO and TiO2 nanoparticles individually and its mixtures (Fe3O4+ZnO) and (Fe3O4+TiO2) at different volume concentration on dielectric strength of mineral oil and ester oil. newline