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        HGW9隔離開關(guān)

        更新:2013/9/26 13:40:47      點(diǎn)擊:
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        • 產(chǎn)品型號(hào)   HGW9
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          HGW9隔離開關(guān),是上海人民電氣有限公司 http://www.daptopoultryclub.com 為您提供的關(guān)于HGW9隔離開關(guān)型號(hào),HGW9隔離開關(guān)價(jià)格,有關(guān)HGW9隔離開關(guān)的相關(guān)資料,上海人民電氣有限公司...

        產(chǎn)品介紹

        隔離開關(guān)是高壓開關(guān)電器中使用最多的一種電器,顧名思義,是在電路中起隔離作用的它本身的工作原理及結(jié)構(gòu)比較簡(jiǎn)單,但是由于使用量大,工作可靠性要求高,對(duì)變電所、電廠的設(shè)計(jì)、建立和安全運(yùn)行的影響均較大。刀閘的主要特點(diǎn)是無(wú)滅弧能力,只能在沒(méi)有負(fù)荷電流的情況下分、合電路。

        1.在電氣設(shè)備檢修時(shí),提供一個(gè)電氣間隔,并且是一個(gè)明顯可見的斷開點(diǎn),用以保障維護(hù)人員的人身安全。
        2.隔離開關(guān)不能帶負(fù)荷操作:不能帶額定負(fù)荷或大負(fù)荷操作,不能分、合負(fù)荷電流和短路電流,但是有滅弧室的可以帶小負(fù)荷及空載線路操作。
        3.一般送電操作時(shí):先合隔離開關(guān),后合斷路器或負(fù)荷類開關(guān); 隔離開關(guān)
        斷電操作時(shí):先斷開斷路器或負(fù)荷類開關(guān),后斷開隔離開關(guān)。
        4.選用時(shí)和其它的電氣設(shè)備相同,其額定電壓、額定電流、動(dòng)穩(wěn)定電流、熱穩(wěn)定電流等都必須符合使用場(chǎng)合的需要。
        隔離開關(guān)的作用是斷開無(wú)負(fù)荷電流的電路.使所檢修的設(shè)備與電源有明顯的斷開點(diǎn),以保證檢修人員的安全,隔離開關(guān)沒(méi)有專門的滅弧裝置不能切斷負(fù)荷電流和短路電流,所以必須在電路在斷路器斷開電路的情況下才可以操作隔離開關(guān)

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