Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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1 000 kV GIS设备故障检测及实例分析

来源:电工电气发布时间:2019-08-16 10:16 浏览次数:597
1 000 kV GIS设备故障检测及实例分析
 
安滨
(国网山东省电力公司检修公司,山东 济南 250118)
 
   摘 要:针对一起特高压变电站1 000 kV气体绝缘封闭开关设备(GIS)开关合闸电阻气室绝缘盆击穿故障,介绍了绝缘故障的定位和分析方法,结合保护动作情况、故障录波信息以及六氟化硫(SF6)气体分解物检测等多种手段确定了故障气室,对故障气室进行返厂解体检查,确定故障是由气室内部异物造成的绝缘盆沿面放电所导致。该实例分析为其他特高压站GIS故障的快速判断提供了借鉴。
   关键词:特高压;气体绝缘封闭开关设备;绝缘故障;故障定位;解体检查
   中图分类号:TM595;TM855      文献标识码:B       文章编号:1007-3175(2019)08-0046-04
 
Fault Detection and Case Analysis of 1 000 kV GIS Equipment
 
AN Bin
(State Grid Shandong Electric Power Company Maintenance Company, Jinan 25011 8, China)
 
    Abstract: Aiming at an insulation tub breakdown fault of switch closing resistor air chamber in 1 000 kV GIS of ultra-high voltage substation, this paper introduced the location and analysis method of insulation fault, and combined with the protective action condition, fault recording information and the test situation of the SF6 gas component etc means to determine the malfunction air chamber. The malfunction air chamber was returned to the factory for disassembly inspection, to make sure the fault that the foreign matter inside air chamber causes the discharge along dielectric surface of insulation tub. This instance analysis provides references for fast judgment of GIS faults in other ultrahigh voltage.
    Key words: ultra-high voltage; GIS; insulation fault; fault location; strip inspection
 
参考文献
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