厂站直流电源系统接地故障排查分析与方法改进  

Analysis and Improvement of Grounding Fault in DC Power Supply System of Power Plant

作　　者：吴志宇[1] WU Zhiyu(Wuzhou Bureau of China Southern Power Grid EHV Transmission Company,Wuzhou 543002,China)

机构地区：[1]中国南方电网超高压输电公司梧州局,广西梧州543002

出　　处：《电工技术》2020年第5期72-73,75,共3页Electric Engineering

摘　　要：以3起厂站直流电源系统接地故障为例,分析厂站直流电源系统接地故障的处理方法,并根据二次设备运行要求、故障特点及故障处理经验,提出了故障排查处理的改进方法,以提高现场故障处理的效率和安全性。Taking three ground faults in the DC power system of the plant as an example,the ground fault treatment methods of the DC power system in the plant and station were analyzed.According to the secondary equipment operation requirements,fault characteristics,and fault handling experience,an improved troubleshooting method was proposed to improve the efficiency and safety of on-site fault processing.

关 键 词：直流电源 接地 绝缘 寄生回路 

分 类 号：TM721.1[电气工程—电力系统及自动化]