三阻值法快速测量电缆金属性接地点距离  

Rapid Measurement of Cable Metallic Grounding Distance by Three Resistance Method

作　　者：吴小梦 WU Xiaomeng(Huaneng Hainan Power Generation Co.,Ltd.,Haikou 570311)

机构地区：[1]华能海南发电股份有限公司,海南海口570311

出　　处：《电力安全技术》2021年第10期69-71,共3页Electric Safety Technology

摘　　要：介绍当电厂电力电缆发生金属性接地故障时,在无专用电力电缆故障查找仪的条件下,可根据电缆接地后形成的电路,使用直流电阻测试仪,灵活运用三阻值法快速计算出接地点的距离,从而提高接地故障点查找的效率。In case of a metallic grounding fault of power cables in power plant,under the condition of no special power cable fault finder,a DC resistance tester can be used according to the circuits formed upon cable grounding,and the three resistance method can be flexibly applied to quickly calculate the distance of grounding points so as to improve the efficiency of locating grounding fault points.

关 键 词：三阻值法 直流电阻测试仪 电缆 金属性接地 

分 类 号：TM93[电气工程—电力电子与电力传动]