A Novel Technique for Conducting Solid Layer Pollution Test on Polymeric Insulators

Pollution accumulation over the insulators is the major cause of failure in outdoor electrical systems where a flashover can occur even under normal working voltages. Pollution performance of is thus an important parameter in dimensioning of insulators. Presently polymeric insulators draw the attention of utilities and manufacturers as their pollution performance is superior to the conventional insulators. But, lack of standardized test method to check the pollution performance of composite insulators still remains confusion in selection of insulators for manufactures & utilities. Efforts are being made by different utilities for standardization of artificial pollution technique for polymeric insulators. CIGRE C4.303 working group has recently proposed a procedure for pollution testing of…