有机绝缘子冲击与工频电压下的湿污闪对比研究  

Comparative Study of Organic Insulator Impact and Wet Pollution Flashover under Power-frequency Voltage

作　　者：周理[1] 古亮[2] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074 [2]重庆理工大学,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2014年第8期81-84,共4页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51107155)

摘　　要：线路绝缘子除长期承受工频高电压外,还可能随时承受脉冲过电压。建立了有机绝缘子污湿闪实验平台,采用数字录像及图像处理技术,记录并对比分析了在大气脉冲电压和工频电压下,硅橡胶复合绝缘子表面湿污闪过程中干燥带的变化以及电弧的分布状态,得到了脉冲电压对干燥带和局部电弧的影响规律。所得结论对进一步认识硅橡胶复合绝缘子的老化和污闪机理有一定的参考价值。Line insulators sustain power-frequency high voltage for a long time,as well as pulse overvoltage at any time. This paper established the test platform of organic insulator wet flashover,recorded and analyzed the variation of drying zone and arc distribution in the process of silicone rubber composite insulator surface wet flashover under atmospheric pulse voltage and power- frequency voltage by the digital video and image technology. We obtained the impulse voltage influence rule on drying zone and part electric arc. The results have certain reference value for further understanding of aging and waste silicone rubber composite insulator flashover mechanism.

关 键 词：绝缘子 湿闪 干燥带 电弧 

分 类 号：TM85[电气工程—高电压与绝缘技术]