786 / 2022-03-31 22:35:05

Study on Pollution Flashover Characteristics of Inverted T-type Insulator Strings

inverted T‑type insulator string, suspended I string, pollution flashover voltage, comparison

Insulator arrangement has significant influence on pollution flashover voltage under natural pollution condition. In this paper, the pollution discharge process of an inverted T‑type insulator string is simulated in the artificial climate chamber, and the pollution discharge voltage is compared with the suspended I string. The difference of pollution flashover voltage gradient E50 between two different series types is not obvious. According to the analysis, since the creepage distance, material coefficient and shape coefficient are consistent, the pollution flashover voltage gradient will not be much different.