Author(s)

Su Hainan, Du Jikuan, Li Junming, Liu Yu, Gaoyucong, Li Xueyan, Du Xingkai, Yang Sen, Ma Jian, Gu Guoxing

Corresponding Author

Su Hainan

Abstract

The external insulation performance of power transmission and transformation line equipment has a major impact on the operational safety of the power grid. A large number of insulators are incorporated in power systems, and the surface pollution and moisture will seriously affect the electrical characteristics of the insulator, and the dirt accumulated on the surface of the insulator will cause insulator flashover breakdown, affecting the power transmission and transformation line reliability, endangering the operational safety of the grid. In recent years, with the rapid development of China's economy, the old industrial bases in Northeast China saw revitalization. However, the revitalization caused increasingly serious environmental pollution. In particular, haze takes place more frequently, which has seriously affected the anti-pollution of transmission line insulators. Moreover, insulator pollution flashover often results in large and serious power outage.

Keywords

Power transmission and transformation line, insulator, pollution flash, salt deposit density, non-soluble deposit density, online monitoring system