描述
1756-EN2T
處理故障電容器應在斷開電容器的斷路器，拉開斷路器兩則的隔離開關，并對電容器組經放電電阻放電后進行。電容器組經放電電阻(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，仍應進行一次人工放電。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，還應單獨進行放電。
電容器在變電所各種設備中屬于可靠性比較薄弱的電器，它比同級電壓的其他設備的絕緣較為薄弱，內部元件發(fā)熱較多，而散熱情況又欠佳，內部故障機會較多，制造電力電容器內部材料的可燃物成分又大，所以運行中極易著火。因此，對電力電容器的運行應盡可能地創(chuàng)造良好的低溫和通風條件。
產品承諾：
保?證?全新原裝進口,
保?證?安全準時發(fā)貨，
保?證售后服務質量，
優(yōu)勢價格，大量現貨。
主營DCS系統配件
機器人系統配件
大型伺服系統配件
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