变电站直流系统接地故障检测技术  

Grounding Fault Detection Technology for DC System in Substation

作　　者：林贤麟 林继涛 何美铃 LIN Xianlin;LIN Jitao;HE Meiling(State Grid Fuzhou Electric Power Supply Company,Fuzhou 350009,China)

机构地区：[1]国网福州供电公司,福建福州350009

出　　处：《电工技术》2021年第22期176-178,184,共4页Electric Engineering

摘　　要：变电站的安全可靠运行与直流系统息息相关,因此直流系统接地故障的快速准确检测具有重要意义。介绍了直流接地故障的成因及危害,概述了目前常用的各类检测技术现状及相应改进方案,并进行了优缺点分析,为直流系统接地故障定位工作提供参考。The safe and reliable operation of substation is closely related to DC system,so the rapid and accurate detection of DC system grounding fault is of great significance.In this paper,the causes and harms of DC grounding fault are introduced.In addition,the technology status and improved method of various detection techniques are summarized,and their advantages and disadvantages are analyzed,which can provide reference for grounding fault location of DC system.

关 键 词：直流系统 接地故障 检测技术 

分 类 号：TM910[电气工程—电力电子与电力传动]