State-of-Art in Nano-Based Dielectric Oil: A Review

Dielectric fluids or commonly oils serve as the protection of any power utility components, which make it selection crucial for utility. Due to its significance, consistent research has been performed and new insulants have been introduced for power utilities to attain better, reliable, and a longer lifespan than the former one. Nanotechnology-based insulating liquids are still under research but show the potential to achieve the objective of smart and futuristic insulation. This paper provides the critical review for the development of insulating liquid and promising results shown by the nanoparticles dispersed fluid termed nanofluids. The state-of-the-art research illustration includes synthesis, experimental investigation, and dielectric and physio-mechanical characterization of nanofluids. The enhancements in the characteristics of nanofluids are elucidated along with its possible mechanisms and shortcomings.