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绝缘子局部电晕放电的紫外检测是判定在线运行绝缘子绝缘性能的重要手段之一。采用光子型紫外探测器检测降雨量、污秽、均压环布置方式等不同试验条件下绝缘子的局部电晕放电程度,统计了检测到的光子数均值,进而分析不同因素对绝缘子电晕放电的影响。结果表明,污秽加剧了绝缘子的局部电晕放电程度;降雨量与绝缘子局部电晕放电程度具有复杂关系;绝缘子局部电晕放电程度与外施电压幅值呈指数增长关系;高压端均压环对绝缘子串的局部电晕放电具有关键作用。
Insulation partial corona discharge UV detection is to determine the operation of insulator insulation performance of an important means. The photon detector was used to detect the degree of partial corona discharge of the insulator under different test conditions such as rainfall, contamination and equalizing ring arrangement, and the average number of detected photons was counted. Then the influence of different factors on the insulator corona discharge was analyzed . The results show that the pollution aggravates the degree of local corona discharge of the insulator, the relationship between the rainfall and the degree of partial corona discharge of the insulator has a complex relationship, the degree of partial corona discharge of the insulator increases exponentially with the applied voltage amplitude, The partial corona discharge of insulator strings plays a key role.