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

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1 000 kV GIS設備故障檢測及實例分析

來源:電工電氣發(fā)布時間:2019-08-16 10:16 瀏覽次數(shù):674
1 000 kV GIS設備故障檢測及實例分析
 
安濱
(國網(wǎng)山東省電力公司檢修公司,山東 濟南 250118)
 
   摘 要:針對一起特高壓變電站1 000 kV氣體絕緣封閉開關設備(GIS)開關合閘電阻氣室絕緣盆擊穿故障,介紹了絕緣故障的定位和分析方法,結合保護動作情況、故障錄波信息以及六氟化硫(SF6)氣體分解物檢測等多種手段確定了故障氣室,對故障氣室進行返廠解體檢查,確定故障是由氣室內(nèi)部異物造成的絕緣盆沿面放電所導致。該實例分析為其他特高壓站GIS故障的快速判斷提供了借鑒。
   關鍵詞:特高壓;氣體絕緣封閉開關設備;絕緣故障;故障定位;解體檢查
   中圖分類號:TM595;TM855      文獻標識碼:B       文章編號: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
 
參考文獻
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