低壓斷路器的選擇原則
低壓斷路器的選擇應(yīng)從以下幾方面考慮:
(1)斷路器類型的選擇:應(yīng)根據(jù)使用場合和保護(hù)要求來選擇。如一般選用塑殼式;短路電流很大時選用限流型;額定電流比較大或有選擇性保護(hù)要求時選用框架式;控制和保護(hù)含有半導(dǎo)體器件的直流電路時應(yīng)選用直流快速斷路器等。
(2)斷路器額定電壓、額定電流應(yīng)大于或等于線路、設(shè)備的正常工作電壓、工作電流。
(3)斷路器極限通斷能力大于或等于電路最大短路電流。
(4)欠電壓脫扣器額定電壓等于線路額定電壓。
(5)過電流脫扣器的額定電流大于或等于線路的最大負(fù)載電流。
卡特拉-漢莫Cutler-Hammer電器產(chǎn)品的精華與西屋電器產(chǎn)品融為一體,業(yè)務(wù)迅速地擴展,伊頓電氣逐漸成為伊頓公司內(nèi)部發(fā)展最為迅速的部分之一。
卡特拉-漢莫 斷路器 Cutler-Hammer
福建瀾瑞科技有限公司 正規(guī)渠道供應(yīng),提供報價關(guān),原產(chǎn)地證明。
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