绝缘子污秽检测方法综述

绝缘子污闪成为继雷电闪络之后影响电力系统外绝缘的第二大危害.随着大气污染日趋严重,绝缘子表面污秽集聚加剧,发生污闪事故的可能性增加.绝缘子污闪由表面污秽程度和潮湿的气象条件决定的,及时检测绝缘子污秽情况并及时清扫可减少污闪事故发生.将就绝缘子污秽检测方法进行介绍,重点介绍微波辐射法和紫外脉冲法.

A Summary of Insulator Pollution Detection Method

Insulator contamination flashover has become the second hazard affecting the power system external insulation after the lightning flashover.With the worsening air pollution,the insulator surface contamination concentration intensifies,and increase the likelihood of pollution flashover occurs.Insulator pollution flashover is determined by the degree of surface contamination and wet weather conditions,the timely detection of insulator contamination and timely cleaning can reduce the incidence of pollution flashover.Insulator contamination detection methods are described in this paper,focusing on the microwave radiation and UV pulse method.