一起GIS变电站220kV母线全停事故的处理及分析  

Handling and Analysis of 220 kV Buses Interrupting Fully in the GIS Substation

作　　者：余大成[1] 

机构地区：[1]国网浙江省电力公司检修分公司,浙江杭州310000

出　　处：《科技创新导报》2016年第21期14-16,18,共4页Science and Technology Innovation Herald

摘　　要：因GIS设备占地面积小、价格逐渐降低,GIS变电站在电力系统中占的比例越来越高。虽然GIS设备发生故障的几率小,但一旦发生事故一般都会造成较严重的后果。该文介绍了一起GIS变电站线路单相接地故障最终却导致220 kV母线全停的事故及其检查处理,分析造成此次事故的主要原因为母线筒内导体插入深度不合要求,并提出了GIS设备现场安装和运行维护方面的若干建议。Because the GIS equipments occupy a limited area and their price has dropped gradually, the proportion of the GIS Substation in the power system is getting higher and higher. The probability of GIS equipments failure is very low. However, once the accident occurred, it will generally result in serious consequences. The thesis aims at demonstrating the single-phase earth fault of the transmission line in the GIS Substation, which results in 220 kV Buses Interrupting Fully. Firstly, the inspection and handling are conducted to analyze the main cause of the accident. It is found that the insertion depth of the conductor in the bus tube fails to meet the standard. Then some suggestions are put forward, including the on-site installation and the operation and maintenance of GIS equipments.

关 键 词：GIS设备 母线全停 事故处理 

分 类 号：TM73[电气工程—电力系统及自动化]