110kV及以上XLPE电缆局放信号的识别方法

PD Signal Recognition Methods for 110kV and above XLPE Cables

本论文以确立一套适用于电缆线路的局放信号识别方法为目的,着重介绍通过实验室人工模拟电缆缺陷进行局放试验、对各种绝缘缺陷所致局放信号进行分析比较、进而总结出一套电缆局放信号的识别方法,并将其应用在运行电缆的局放检测中进行对比验证,最终在几个现场局放测试的成功案例和经验的基础上,固化出一套可以推广的电缆线路局放检测方法。

With a view to developing a method to recognize the cable line partial discharge （PD） signals, this paper firstly highlights the PD test by laboratory simulation of cable defects. Then by comparing and analyzing the PD sig- nals induced by various insulation defects, it generalizes a set of cable PD signal identification methods, which in turn were applied to the PD detection of the running cables for the purpose of comparison and verification. Finally, on the basis of several successful on-site test cases and experience, a set of methods are defined as practicable in cable line PD detection.