交联聚乙烯电缆护层接地电流计算及监测  

Calculation and Detection of Current in the Ground Wire of Crosslinked Polyethylene(XLPE) Cables

作　　者：欧阳力 李小春 谭君 刘郑哲 

机构地区：[1]衡阳电业局,湖南衡阳421001

出　　处：《供用电》2012年第2期71-74,共4页Distribution & Utilization

摘　　要：分析了交联聚乙烯电缆护层的接地电流,介绍了电缆护层感应电动势和电缆护层接地电流的计算方法。阐述了电缆护层接地电流监测的意义,和对其测试结果的判断方法。在一起电缆缺陷案例中,通过检测护层接地电流不仅发现了其安装缺陷,而且证明电缆护层接地电流的理论计算结果与实测值相符。The current in the ground wire of XLPE Cables is analyzed, the calculation method of induced electromotive force in sheaths of cables and current in the ground wire are given. The significance and diagnostic method of measuring current in the ground wire are described. Finally, in a cable fault diagnosis, with the help of measuring current in the ground wire, not only the fault is found, but the calculated results agree quite well with the data measured on site as well.

关 键 词：交联聚乙烯电缆 护层接地电流 带电检测 感应电动势 

分 类 号：TM575[电气工程—电器]