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

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    一起CT斷線告警引起母線保護退出運行的故障分析

    來源:電工電氣發布時間:2016-04-06 14:06 瀏覽次數:9

    一起CT斷線告警引起母線保護退出運行的故障分析 

    陳剛,錢碧甫,王策 
    (溫州供電公司,浙江 溫州 325000) 
     

    摘 要: 介紹一起由閘刀輔助接點損壞引起母線保護CT 斷線告警的故障,通過對BP-2B 差流回路和閘刀開入邏輯的分析,得出此故障是由于外部回路的閘刀接點開入錯誤所導致,提出多種可行性解決方案,以期減少和杜絕因閘刀輔助接點損壞或接觸不良可能引起的危害。
    關鍵詞: 母線保護;輔助接點;CT 斷線;措施
    中圖分類號:TM645.1+1 文獻標識碼:B 文章編號:1007-3175(2014)11-0023-03


    Malfunction Analysis of Bus Protection Out of Services Because of Current Transformer Disconnection Alarm 

    CHEN Gang, QIAN Bi-fu, WANG Ce 
    (Wenzhou Power Supply Company, Wenzhou 325000, China) 
     

    Abstract: Introduction was made to the malfunction of current transformer disconnection alarm owing to the auxiliary contact broken in isolating switch. This paper analyzed the BP-2B difference stream circuit and the making and breaking logic in isolating switch. The mistakes caused by making and breaking of the contacts in isolating switch of peripheral circuit made bus protection out of services. Some feasibility solutions were proposed, so as to reduce and avoid the negative influence of the auxiliary contact broken and poor contact in isolating switch.
             Key words: bus protection; auxiliary contact; current transformer disconnection; solution


    參考文獻
    [1] 姚李孝,韓曉昆,毛亞勝,王琴. 高性能微機式母線保護裝置研制[J]. 電力系統及其自動化學報,2005,17(4):16-19.
    [2] 舒逸石,馬勇,于培杰.淺談母差保護微機化的幾點感受[J].電力系統保護與控制,2009,37(14):116-117.
    [3] 楊繼明,劉高會,吳艷軍,等.BP-2B與RCS-915AB母線差動保護的原理分析與應用[J].電力科學與工程,2011,27(7):55-59.
    [4] 王翠霞,張國平.BP-2B復式比率差動保護分析與調試[J].繼電器,2007,35(S1):184-187.
    [5] 汪覺恒,唐衛華.國內外各類母線保護技術特性分析[J].電力自動化設備,2000,20(1):45-47.
     

     

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