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

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    GIS設備局部放電定位技術與現場應用

    來源:電工電氣發布時間:2018-01-22 10:22 瀏覽次數:742
    GIS設備局部放電定位技術與現場應用
     
    劉磊,樸文泉,劉振國,葛志杰,楊洋
    (國網新疆電力公司電力科學研究院,新疆 烏魯木齊 830011)
     
        摘 要:通過帶電檢測發現氣體絕緣金屬封閉開關設備(GIS)存在局部放電信號后,需對局放源進行快速準確定位,以判斷缺陷類型,制定檢修消缺方案。對GIS設備超聲波定位、特高頻定位、聲電聯合定位等方法進行了分析,并例舉現場定位應用案例,案例表明三種定位方法對GIS一般缺陷都有良好的定位效果。對于超聲波或特高頻難以定位的缺陷,可以采用聲電聯合定位法同時分析超聲波與特高頻信號,實現缺陷準確定位。
        關鍵詞:氣體絕緣金屬封閉開關設備;定位;超聲波;特高頻;聲電聯合
        中圖分類號:TM643     文獻標識碼:B     文章編號:1007-3175(2018)01-0038-05
     
    Partial Discharge Localization Technology and Field Application of Gas Insulated Switchgear Equipment
     
    LIU Lei, PIAO Wen-quan, LIU Zhen-guo, GE Zhi-jie, YANG Yang
    (State Grid Xinjiang Electric Power Research Institute, Urumqi 830011 , China)
     
        Abstract: After the partial discharge (PD) signals in gas insulated switchgear (GIS) were detected, it is necessary to locate the PD sources quickly and accurately, so as to judge the types of defects and to formulate a solution for eliminating the defects. This paper analyzed the methods of ultrasonic localization, ultrahigh frequency (UHF) localization, and acoustoelectric union localization of GIS equipment and illustrated the application cases of field localization. The cases show that the three localization methods have good location effect on general defects in GIS. For the defect that ultrasonic or UHF localization method is difficult to locate, the acoustoelectric union localization method can be adopted to simultaneously analyze ultrasonic and UHF signals to realize the defect localization accurately.
        Key words: gas insulated switchgear; localization; ultrasonic; ultrahigh frequency; acoustoelectric union
     
    參考文獻
    [1] 劉紹男. 超聲波檢測技術在GIS設備故障診斷中的應用[D]. 長春:吉林大學,2013.
    [2] 國家電網公司運維檢修部. 電網設備帶電檢測技術[M]. 北京:中國電力出版社,2014.
    [3] Q/GDW 11059.1—2013 氣體絕緣金屬封閉開關設備局部放電帶電測試技術現場應用導則 第1部分:超聲波法[S].
    [4] 樊雷. GIS局部放電混頻隨機窄帶干擾抑制及特征提取方法研究[D]. 重慶:重慶大學,2014.
    [5] Q/GDW 11059.2—2013 氣體絕緣金屬封閉開關設備局部放電帶電測試技術現場應用導則 第2 部分:特高頻法[S].
    [6] 徐敏驊,吳曉春,陸振華,等. GIS局部放電檢測與定位技術的現場應用[J]. 華東電力,2009,37(7):1086-1089.
    [7] 胡偉濤. 聲電聯合技術檢測GIS局部放電的試驗[J]. 電力科學與技術學報,2012,27(2):57-64.
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