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

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110 kV GIS故障原因分析及應對措施

來源:電工電氣發(fā)布時間:2019-06-13 13:13 瀏覽次數(shù):688
110 kV GIS故障原因分析及應對措施
 
祝偉強,張磊
(廣東電網(wǎng)有限責任公司惠州供電局,廣東 惠州 516000)
 
    摘 要:以某變電站110 kV絕緣金屬封閉開關設備(GIS)內(nèi)部放電故障為例,通過查詢保護動作信息、現(xiàn)場檢查及試驗分析及返廠解體檢查,確定了故障點和故障類型,得出刀閘動觸頭固定轉(zhuǎn)動軸的相間絕緣子質(zhì)量缺陷是故障發(fā)生的主要原因。針對此類故障從設備運輸、安裝、試驗以及運維等方面提出相應的預防措施,以防止同類型刀閘氣室故障再次發(fā)生。
    關鍵詞:GIS設備;內(nèi)部放電;相間絕緣子;預防措施
    中圖分類號:TM595     文獻標識碼:B     文章編號:1007-3175(2019)06-0041-03
 
Reason Analysis and Countermeasures of 110 kV GIS Fault
 
ZHU Wei-qiang, ZHANG Lei
(Huizhou Power Supply Bureau, Guangdong Power Grid Co., Ltd, Huizhou 516000, China)
 
    Abstract: This paper took the internal discharge fault of a 110 kV GIS device in certain station as an example to confirm the fault point and its type by querying the protection action information, on-site inspection and test analysis, and returning to the factory for disassembly inspection. It is concluded that the main cause of the failure is the interphase insulator quality defect of the fixed rotating shaft of the isolation switch moving contact. The corresponding preventive measures are proposed for such faults from the respects of equipment transportation, installation, tests, operation and maintenance to prevent similar disconnecting link gas chamber failures from happening again.
    Key words: GIS equipment; internal discharge; phase insulator; preventive measure
 
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