描述

1794-ACN15

處理故障電容器應(yīng)在斷開電容器的斷路器，拉開斷路器兩則的隔離開關(guān)，并對電容器組經(jīng)放電電阻放電后進(jìn)行。電容器組經(jīng)放電電阻(放電變壓器或放電電壓互感器)放電以后，由于部分殘存電荷一時放不盡，仍應(yīng)進(jìn)行一次人工放電。放電時先將接地線接地端接好，再用接地棒多次對電容器放電，直至無放電火花及放電聲為止，然后將接地端固定好。由于故障電容器可能發(fā)生引線接觸不良、內(nèi)部斷線或熔絲熔斷等，因此有部分電荷可能未放盡，所以檢修人員在接觸故障電容器之前，還應(yīng)戴上絕緣手套，先用短路線將故障電容器兩極短接，然后方動手拆卸和更換。對于雙星形接線的電容器組的中性線上，以及多個電容器的串接線上，還應(yīng)單獨(dú)進(jìn)行放電。
電容器在變電所各種設(shè)備中屬于可靠性比較薄弱的電器，它比同級電壓的其他設(shè)備的絕緣較為薄弱，內(nèi)部元件發(fā)熱較多，而散熱情況又欠佳，內(nèi)部故障機(jī)會較多，制造電力電容器內(nèi)部材料的可燃物成分又大，所以運(yùn)行中極易著火。因此，對電力電容器的運(yùn)行應(yīng)盡可能地創(chuàng)造良好的低溫和通風(fēng)條件。

產(chǎn)品承
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢價格，大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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1794-ACN15

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