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

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    發電機手包絕緣表面電位測試接線原理及改進

    來源:電工電氣發布時間:2019-02-19 09:19 瀏覽次數:695
    發電機手包絕緣表面電位測試接線原理及改進
     
    張樹銘
    (中國大唐集團科學技術研究院有限公司華東電力試驗研究院,安徽 合肥 230088)
     
        摘 要:介紹了發電機定子繞組手包絕緣施加直流電壓測量方法,闡述了正接線和反接線試驗方式的試驗方法和實驗原理,分析對比了兩種接線方式的優缺點,針對傳統的試驗接線方式中存在的問題提出了改進措施,給出了一種新的基于傳統反接線方式的手包絕緣測試方法,既能滿足在定子通水狀態下進行試驗,又極大地縮小了試驗設備容量,工程運用表現良好。
        關鍵詞:手包絕緣;表面電位;反接線方式優化
        中圖分類號:TM303.1;TM306     文獻標識碼:B     文章編號:1007-3175(2019)02-0056-04
     
    Wiring Principle and Improvement of Surface Potential Test for Generator Hand-Making Insulation
     
    ZHANG Shu-ming
    (China Datang Corporation Science and Technology Research Institute Co., Ltd, East China Electric Power Test Research Insitute, Hefei 230088, China)
     
        Abstract: Introduction was made to the method of direct current voltage measuring imposing on the hand-making insulation of generator stator winding. This paper expounded the test method and experimental principle of positive and reverse connection test modes, and analyzed and compared two kinds of relative merits of two types of connection modes. Aiming at the problems existing in traditional test connection mode, this paper proposed the improved measures and gave a new kind of hand-making insulation test method, which not only met the requirements of the test under conditions of stator through-water state, but also greatly reduced the test facility capacity, with good engineering application.
        Key words: hand-making insulation; surface potential; reverse connection mode optimization
     
    參考文獻
    [1] 蘆竹茂,梁基重,王天正,等. 發電機手包絕緣表面電位試驗的應用[J]. 大電機技術,2015(3):32-35.
    [2] 薛敏,翟永祥. 水內冷發電機定子線棒端部手包絕緣的測試[J]. 安徽電力,2015,32(1):15-19.
    [3] 徐強. 發電機手包絕緣故障電位外移試驗方法淺析[J]. 黑龍江科技信息,2012(21):57-58.
    [4] 吳影, 梅志剛. 定子端部手包絕緣表面電位測量的電路分析與試驗要點[J]. 華北電力技術,2008(10):25-27.
    [5] 任守強. 600 MW發電機定子線圈端部手包絕緣缺陷的測試及處理[J]. 黑龍江科技信息,2015(3):96.

     

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