电力电缆局部放电全过程检测系统

指出局部放电离线检测和在线检测两种方式各具优劣,采用离线和在线局部放电检测互相补充、结合使用的方法,实现电缆绝缘状况的全过程检测,阐述将交流谐振耐压试验技术与局部放电测量、定位和诊断技术相结合,检测电力电缆局部放电水平的方法,并对绝缘薄弱处进行定位,通过实际测试表明对电力电缆的状态检测取得了良好的应用效果。

Whole Process Detecting System of Power Cable Partial Discharge

Off-line partial discharge detection and on-line detection have their advantages and disadvantages respectively. This paper adopts the detecting methods of both off-line and on-line partial discharge to realize whole process detecting of power cable state. The method combines AC resonant withstand voltage test techniques with partial discharge measurement, positioning and diagnostic techniques, based on which, the level of partial discharge of power cable can be detected and the vulnerable insulation areas can be positioned.According to actual detection, the technique has a good effect on state detection of power cable.