一起252kVGIS设备故障分析Analysis on a Fault of 252 kV GIS Equipment
徐华,刘浩军,潘杰,林钧
XU Hua,LIU Hao jun,PAN Jie,LIN Jun
摘要(Abstract):
分析了一起252 kV GIS故障,相关试验表明故障气室的SO2和H2S含量较高。分析认为故障的直接原因是设备安装中出现纰漏,母线导体插入深度过短,或者限位卡箍未起作用,当线路发生接地时在电动力作用下导体套筒轴向位移过大,引起母线放电烧损,为此提出了防范的措施。
The paper analyzes a fault of 252 kV GIS equipment.The test shows that SO2 and H2 S concentrations in the faulty chamber are high.It is analyzed that the fault is caused by careless mistakes during equipment installation,short insertion of bus conductor or failure of stopper clips.When the lines are grounded,there is a large axial shift of conductor bushing due to electrodynamic force,which causes discharge burning of the conductor.Therefore,the paper proposes preventive measures.
关键词(KeyWords):
GIS;断路器;母线;故障;分析
GIS;switch;bus;fault;analysis
基金项目(Foundation):
作者(Author):
徐华,刘浩军,潘杰,林钧
XU Hua,LIU Hao jun,PAN Jie,LIN Jun
DOI: 10.19585/j.zjdl.2013.09.004