一起220kV变电站复杂直流接地的分析与处理  

Analysis and Treatment of Complex DC Grounding in 220kV Substation

作　　者：吴馨 冯逸群 胡洋 WU Xin;FENG Yiqun;HU Yang(State Grid Maanshan Power Supply Company,Maanshan 243000,China;State Grid Dangtu Power Supply Company,Dangtu 243100,China;State Grid Bengbu Power Supply Company,Bengbu 233000,China)

机构地区：[1]国网马鞍山供电公司,安徽马鞍山243000 [2]国网当涂县供电公司,安徽当涂243100 [3]国网蚌埠供电公司,安徽蚌埠233000

出　　处：《安徽电气工程职业技术学院学报》2024年第4期60-65,共6页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：文章通过对一起220kV变电站复杂直流接地故障处理过程的详细阐述,介绍了直流接地故障处理的常规流程,并根据故障原因对拉路方式、二次回路验收和综合自动化改造的一些细节提出了具体处理建议。以期缩短此类接地故障的处理时间,更好地保证电网的安全稳定运行。This paper elaborates on the process of dealing with a complex DC grounding fault in a 220 kV substation,introducing the general flow of DC grounding fault treatment.Based on the cause analysis,specific suggestions are put forward regarding pulling mode,secondary circuit acceptance and comprehensive transformation of automation.The aim is to reduce the time taken to address such grounding faults and better ensure the safe and stable operation of the power grid.

关 键 词：直流接地 直流互串 二次回路 电缆接地 

分 类 号：TM63[电气工程—电力系统及自动化] TM862