Leakage current characteristics of 132kV polymeric and porcelain insulator under various polluted conditions

Abstract

In this paper, it was proposed to measure the leakage current experimentally on four samples of polymeric and porcelain insulators of 132kV with and without some practically available pollutants in the environment such as salt, urea and cement etc. and also compared the performance of both type of insulators when different pollutions are present on the insulator surface. The experimental analysis shows that the leakage current was more in porcelain insulator when compared with polymeric insulator. But in this experiment we observed that, the leakage current in Urea coated Porcelain insulator was more than the urea coated Polymeric insulator.