利用脉冲电流法结合耦合电磁波法查找复杂电缆局放信号来源案例分析

Case Analysis of Locating Complex PD Sigal Source Through Combination of Pulse Current Method and Coupled Electromagnetic Wave Method

介绍了脉冲电流法和耦合电磁波法的基本测试原理,并将这2种测试方法的优点相结合,尝试性地应用于电缆局部放电检测信号中,并通过实际复杂局部放电信号的来源查找案例,证明该方法可以有效解决由于多种信号掺杂且电缆终端无法检测情况下带来的信号源查找难题,为今后局部放电检测中遇到类似问题提供参考。

This paper mainly introduces the basic test principles of pulse current method and coupled electromagnetic wave method.The combination of the advantages of these two test methods are tentatively applied to the partial discharge(PD)detection of the cable.The case analysis through an actual complex PD signal source lookup.In order to prove that the method can effectively solve the problem of signal source finding caused by multiple signal doping and cable terminal undetectable conditions.It provides a reference for the future problems encountered in the actual PD detection.