基于脉冲差分的高压电缆故障定位方法及设备研究

针对目前高压电缆故障定位方法存在的不足,文章研究了基于脉冲差分的高压电缆故障定位方法及设备。文中依靠两路高压输出和差分信号耦合,结合软件优化算法实现了冲闪和直闪脉冲差分故障的定位,解决了目前高压电缆闪络或间歇性故障定位存在的问题。通过实验,验证了定位设备和定位方法的参考作用。该方法波形识别简单,具有更高的灵敏度和定位精度,有着很好的应用前景。

Research on fault location method and equipment of high voltage cable based on pulse difference

Aiming at the deficiency of HV cable fault location method at present, this paper studies the HV cable fault location method based on pulse differential and equipment. By means of two-way high voltage output and differential signal coupling, differential fault location of impulse and DC flash pulse is realized by software optimization algorithm, which solves the deficiency of HV cable flashover or intermittent fault location at present. The validity of the location method and the equipment is verified by the test. The method has the advantages of simple waveform identification, higher sensitivity and location accuracy, and has a good application prospect.