<dd id="mimiw"><samp id="mimiw"></samp></dd>

<address id="mimiw"><nav id="mimiw"><delect id="mimiw"></delect></nav></address>

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

    Article retrieval

    文章檢索

    首頁 >> 文章檢索 >> 往年索引

    一起220 kV GIS母線支柱絕緣子故障定位與分析

    來源:電工電氣發(fā)布時(shí)間:2019-07-16 14:16 瀏覽次數(shù):674
    一起220 kV GIS母線支柱絕緣子故障定位與分析
     
    邱煒,徐清鵬,蔡川,楊紅權(quán),黃鑫,劉君,馬錫良
    (國網(wǎng)成都供電公司,四川 成都 610000)
     
        摘 要:針對(duì)一起220 kV母線支柱絕緣子內(nèi)部放電擊穿故障,進(jìn)行了定位和故障原因分析。通過分析SF6氣體分解產(chǎn)物,確定了故障氣室;通過絕緣子電氣、機(jī)械、片析等試驗(yàn)分析,判斷本次絕緣子運(yùn)行中放電故障原因?yàn)榻^緣子在運(yùn)輸或裝配過程中產(chǎn)生應(yīng)力集中缺陷,在長時(shí)間運(yùn)行電壓作用下微弱局部放電逐步累積使絕緣子缺陷擴(kuò)大,最終導(dǎo)致放電擊穿。對(duì)GIS設(shè)備運(yùn)維檢修工作提出建議,以避免此類事故再次發(fā)生。
        關(guān)鍵詞:GIS;支柱絕緣子;放電故障;SF6分解產(chǎn)物;局部放電
        中圖分類號(hào):TM216     文獻(xiàn)標(biāo)識(shí)碼:A      文章編號(hào):1007-3175(2019)07-0046-05
     
    Fault Location and Analysis of a Case of 220 kV Gas Insulated Switchgear Bus Supporting Insulator
     
    QIU Wui, XU Qing-peng, CAI Chuan, YANG Hong-quan, HUANG Xin, LIU Jun, MA Xi-liang
    (State Grid Chengdu Power Supply Company, Chengdu 610000, China)
     
        Abstract: Aiming at the inner discharge breakdown failure of a case of a 220 kV bus supporting insulator, this paper carried out location and failure cause analysis.Through the analysis of SF6 gas decomposition products, the gas chamber where the accident happened was determined. Through insulator electrical, mechanical and slice analysis etc test analysis, it is concluded that the insulators are impacted by external forces in the process of transport or assembly, resulting in tiny cracks.After electrification, weak partial discharge gradually accumulates to expand insulator defects, and eventually leads to breakdown.In order to avoid the recurrence of this kind of accident, some suggestions are put forward for the future work.
        Key words: gas insulated switchgear; supporting insulator; discharge fault; SF6 decomposition products; partial discharge
     
    參考文獻(xiàn)
    [1] 李秀衛(wèi),王慶玉,毛惠卿,等. 一起組合電器內(nèi)部絕緣故障綜合分析[J]. 高壓電器,2012,48(8):99-102.
    [2] 李超,陶蓉. 一起126 kV GIS設(shè)備故障后的檢測(cè)實(shí)例分析[J]. 高壓電器,2015,51(1):145-149.
    [3] 邱煒,劉石. GIS設(shè)備現(xiàn)場(chǎng)交流耐壓試驗(yàn)放電故障定位與分析[J]. 四川電力技術(shù),2016,39(5):67-70.
    [4] 周電波,羅錦,肖偉,等. 基于超聲波原理的GIS局部放電現(xiàn)場(chǎng)檢測(cè)及缺陷定位方法[J]. 四川電力技術(shù),2016,39(4):50-53.
    [5] 劉同杰,萬紅艷,劉同敏. 一起GIS設(shè)備密封不良問題原因分析[J]. 四川電力技術(shù),2017,40(6):89-91.
    [6] 李興旺,劉軍,劉夢(mèng)娜. 一起氣體絕緣金屬封閉開關(guān)設(shè)備懸浮放電缺陷分析[J]. 高壓電器,2015,51(10):205-208.
    [7] 李秀廣,郭榮坤,馬波,等. 一起110 kV變電站GIS絕緣子故障定位分析[J]. 電氣技術(shù),2016,17(12):162-166.
    [8] 諶倫作.GIS設(shè)備故障原因分析[J]. 科學(xué)技術(shù)創(chuàng)新,2016(29):167.
    [9] 季嚴(yán)松,王承玉,楊韌,等.SF6氣體分解產(chǎn)物檢測(cè)技術(shù)及其在GIS設(shè)備故障診斷中的應(yīng)用[J]. 高壓電器,2011,47(2):100-103.
    [10] 陳錦清,鄭曉光.GIS故障檢測(cè)新技術(shù)[J]. 廣東電力,2001,14(5):43-45.

     

    亚洲无码av成人在线,亚洲影院AV无码一区二区,亚洲无码第二页,成人无码AV网站在线观看不卡 (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })();