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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(hù)退出運(yùn)行的故障分析

    來源:電工電氣發(fā)布時間:2016-04-06 14:06 瀏覽次數(shù):10

    一起CT斷線告警引起母線保護(hù)退出運(yùn)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(diǎn)損壞引起母線保護(hù)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(diǎn)開入錯誤所導(dǎo)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(diǎn)損壞或接觸不良可能引起的危害。
    關(guān)鍵詞: 母線保護(hù);輔助接點(diǎn);CT 斷線;措施
    中圖分類號:TM645.1+1 文獻(xiàn)標(biāo)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(xiàn)
    [1] 姚李孝,韓曉昆,毛亞勝,王琴. 高性能微機(jī)式母線保護(hù)裝置研制[J]. 電力系統(tǒng)及其自動化學(xué)報,2005,17(4):16-19.
    [2] 舒逸石,馬勇,于培杰.淺談母差保護(hù)微機(jī)化的幾點(diǎn)感受[J].電力系統(tǒng)保護(hù)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(hù)的原理分析與應(yīng)用[J].電力科學(xué)與工程,2011,27(7):55-59.
    [4] 王翠霞,張國平.BP-2B復(fù)式比率差動保護(hù)分析與調(diào)試[J].繼電器,2007,35(S1):184-187.
    [5] 汪覺恒,唐衛(wèi)華.國內(nèi)外各類母線保護(hù)技術(shù)特性分析[J].電力自動化設(shè)備,2000,20(1):45-47.
     

     

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