电缆故障在线监测及定位系统方案及应用  

Scheme and Application of On-Line Monitoring and Locating System for Cable Fault

作　　者：林阳 王耀[1] 李续照 潘仁秋[1] Lin Yang;Wang Yao;Li Xuzhao;Pan Renqiu(NR Electric Co.,Ltd.,Nanjing,211102,China)

机构地区：[1]南京南瑞继保电气有限公司,南京211102

出　　处：《仪器仪表用户》2023年第12期47-50,87,共5页Instrumentation

摘　　要：提出了一套以具有电缆局放预警、环流预警、故障选线、故障测距“四合一”功能的故障在线监测定位装置为核心,适用于地下及配网电缆的故障在线监测及定位系统及其应用方案。系统由监测信号传感器(含行波/局放/环流传感器)、信号采集及监测定位装置、监测主站和通讯网络4部分构成。根据城市配电网、地下电缆、工矿企业电缆网络等不同应用场景的需求,提出了相应的系统配置原则和方案,并提供了现场应用的案例。This article proposes a set of on-line monitoring and locating system for cable fault for underground and distribution network cables and its application scheme,which can achieve the functions of partial discharge monitoring and early warning,sheath circulation monitoring and early warning,traveling wave fault line selection,and traveling wave fault location.The system consists of four parts:monitoring signal sensors(including traveling wave/partial discharge/sheath circulating current sensors),signal acquisition and locating devices,master station,and communication network.This article proposes configuration principles and application solutions for different application scenarios,such as urban distribution networks,underground cables,industrial and mining enterprises.This article proposes an application case of the on-line monitoring and positioning system.

关 键 词：在线预警 局部放电 行波选线 

分 类 号：TM75[电气工程—电力系统及自动化]