强电磁干扰环境下隔离开关回路电阻测量方法的优化  

Optimization of measurement method for disconnector circuit resistance in strong electromagnetic interference environment

作　　者：李维江 檀英辉 李广渊 王强 马宁 

机构地区：[1]国网冀北电力有限公司检修分公司,北京101100

出　　处：《华电技术》2018年第2期43-45,共3页HUADIAN TECHNOLOGY

摘　　要：根据一例隔离开关回路电阻试验,分析试验场地的电磁环境,通过计算试验环境的电磁场及试验回路中的感应电压,得到强电磁干扰为造成隔离开关回路电阻测量数据失真的重要原因之一的结论。通过优化隔离开关测量回路接线方式,减小变电站中强磁场对隔离开关测量回路电阻的影响,使隔离开关回路电阻测量值更加准确可靠,从而提高电网隔离开关回路电阻测试的准确性和隔离开关检修的生产效率。According to a disconnector circuit resistance test,electromagnetic environment of the test site is analyzed. By calculating the electromagnetic field in the test environment and the induced voltage in the test circuit,the electromagnetic interference has been proved to be an important reason for the distortion of the disconnector circuit resistance. By improving the wiring method of disconnector measuring circuit,the influence of electromagnetic interference on measuring the resistance of the disconnector is reduced. The measured value of disconnector circuit resistance is more accurate and reliable,which improves the accuracy while testing disconnector circuit resistance and the production efficiency during grid maintenance.

关 键 词：变电站 隔离开关 电磁干扰 回路电阻试验 

分 类 号：TM835[电气工程—高电压与绝缘技术]