Analysis of SF6 decomposition products by insulator flashover to detect the insulator condition

摘要

An evident fault occurs on the insulator surface accompanied by a remarkable insulator strength decline were detected, which is probably caused by the SF6 decomposition products in the insulator flashover process. A simulation of flashover process on the insulator surface was built in this article in order to analyze the possible decomposition product of SF6. As a result, several specific decomposition products (eg. CS2) of the primary insulator material were discovered, which make it possible to assume the reaction mechanism and further application of insulator flashover process via analysis of specific gas such as CS2.