基于行波测距技术的电缆故障定位的应用  

Application of Cable Fault Location Based on Traveling Wave Location Technology

作　　者：王国昊 姜玉林 宋云峰 郭尧 文鹏 WANG Guohao;JIANG Yulin;SONG Yunfeng;GUO Yao;WEN Peng(State Grid Dalian Power Supply Company,Dalian,Liaoning 116011,China)

机构地区：[1]国网大连供电公司,辽宁大连116011

出　　处：《东北电力技术》2020年第2期16-18,共3页Northeast Electric Power Technology

摘　　要：高压电缆在电力系统中扮演着重要的角色,当高压电缆发生重大故障,会导致城市区域大面积停电,将造成不良的社会影响和极大的经济损失。目前电缆所采用的离线故障排查技术操作繁琐,费时费力。基于电缆故障产生暂态行波的原理,通过双端测距技术实时获取电缆故障点位置,解决了当前离线故障定位方法对于GIS终端、T接电缆线路定位时间长、定位复杂的难题。The high voltage cable plays an important role in the power transmission system.Once the fault occurs,it will lead to large-scale power outages in urban areas,which will cause adverse social impacts and great economic losses.At present,the offline fault detection technology used in the cable is cumbersome and time consuming.Based on the principle of ecological traveling wave generation of cable fault,it obtains the location of cable fault point in real time through the double-end location technology.It solves the problems such as the long location time of off-line obstacle determination method widely used at present,the winter end of GIS,the line of T connecting cable and the complex location.

关 键 词：电缆故障 特性阻抗 暂态行波 双端测距 

分 类 号：TM75[电气工程—电力系统及自动化]