110 kV  GIS隔离开关缺相故障分析  

Analysis of Phase Loss Fault of 110kV GIS Disconnector

作　　者：朱亮亮 Zhu Liang-liang

机构地区：[1]国网陕西省电力有限公司延安供电公司,陕西延安716000

出　　处：《电力系统装备》2022年第11期132-135,共4页Electric Power System Equipment

摘　　要：随着电力技术的发展和城市的土地资源的日益短缺,GIS在新建和老式变电站的建设中的应用日益广泛,它占地面积小,技术性能好,日常维护简单,可靠性高。但由于GIS的导电部分全封闭于GIS管道中,对操作和维修造成了一定的不利影响,例如:开罐检修工艺复杂、安装环境无尘化要求高、GIS气体污染等。GIS设备出现局部故障,需要进行断电维修,常常导致邻近GIS气室停电,造成停电区域扩大;GIS气体回收以及真空注气往往耗时长,增加了停电时间。尤其是GIS本身的密封性,只能由位置驱动机构来判断内部的隔离开关,而不能直接看到,如果在操作中发生故障,很难及时发现,从而导致故障。文中对110 kV GIS隔离开关缺相故障进行分析,从而为GIS设备的正常运行和维护工作积累了一定的经验。With the development of electric power technology and the increasing shortage of urban land resources,GIS is widely used in the construction of new and old-fashioned substations.It occupies a small area,has good technical performance,simple daily maintenance and high reliability.However,because the conductive part of GIS is completely enclosed in the GIS pipeline,it has a certain adverse impact on operation and maintenance,such as:complex opening and maintenance process,high requirements for dust-free installation environment,and GIS gas pollution.Partial failure of GIS equipment requires power outage maintenance,which often leads to power outages in adjacent GIS gas chambers,resulting in the expansion of the power outage area;GIS gas recovery and vacuum gas injection often take a long time,increasing the power outage time.Especially the tightness of the GIS itself,the internal isolation switch can only be judged by the position drive mechanism,but cannot be seen directly.If a fault occurs during operation,it is difficult to find out in time,which will lead to failure.This paper analyzes the phase loss fault of 110 kV GIS isolating switch,so as to accumulate certain experience for the normal operation and maintenance of GIS equipment.

关 键 词：缺相故障 GIS隔离开关 故障分析 

分 类 号：TM564.1[电气工程—电器]