Characteristics of Natural Ester Oil Exposed with Ultrasonic Sound Waves

Abstract

In the present scenario of development towards sustainable alternate oil insulation for transformers , vege table oil s based natural esters have impressed as a potential substitute to transformer oil liquid insulation among many research people. Even though natural esters have possessed better electrical characteristics as liquid insulation, they have some drawb acks related to viscous nature, which will affect the flowing nature. This work aims to develop low viscous natural ester oil for the application as liquid insulation with exposing the natural esters to ultrasonic sound waves. Ultrasonic sound waves are ex posed to natural esters for duration of 1 hour and 2 hours. The impact of ultrasonic sound waves on the viscosit ies of natural ester oil samples are analyzed before and after the exposure treatment process. Further other characteristics such as breakdown v oltage ( BDV), flash point, fire point, pour point, and density of natural ester oil samples are measured to identify the outcome of ultrasonic treatment. From this investigation results, it is found that the ultrasonic sound waves have created an positive results with reduction in the viscosity and alteration in other characteristics of natural ester oil s amples