一种新型绝缘子带电检测方法—紫外成像法

用泄漏电流法来检测绝缘子的运行状态是目前常用的检测方法,但有工作量大、数据不能做到综合的分析不足之处。因此提出一种新的检测方法—紫外成像法,即通过用紫外成像仪观察线路绝缘子的紫外成像特点来分析其沿面放电特点,从而判断绝缘子的运行状态。试验证明,绝缘子盐密越大,紫外光子越多;由弱电过程中紫外光子数量可以已能污秽绝缘子的弱电阶段。

New Method to Detect Insulation On Line Ultraviolet Image Method

This paper suggests a new insulator condition monitoring method,the ultraviolet radiation imaging method.This method employs the ultraviolet radiation imaging instrument to monitor the characteristic of the ultraviolet radiation of the line insulator,analyze the discharge characteristic along the surface of the insulator and then estimate the operation condition of the insulator.Based on the contamination tests carried out in the laboratory,the relationship between the number of the ultraviolet radiation photons and the stages of the contamination discharge is found.Moreover,the feasibility to employing this method to determine the discharge stage of line insulator and its condition is proved.