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anjw1977
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樓主  發(fā)表于: 2022-06-05 08:22
請教各位師傅，同一型號，品牌的數控機床，電源供電三相五線(xiàn)，漏保經(jīng)過(guò)三相線(xiàn)+零線(xiàn)。接到數控機床為三相電源+地線(xiàn)（沒(méi)有零線(xiàn)），將地線(xiàn)接在數控機床的PE端。一臺機床不會(huì )跳漏保，另外一臺，合閘就跳漏保，（將變頻器的PE線(xiàn)拆下，送電不跳閘，然后再接回PE線(xiàn)也不跳閘，接PE線(xiàn)時(shí)有跳火的現象），什么原因？有些說(shuō)數控機床不能接漏保，是不是��？
老兔子
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1樓  發(fā)表于: 2022-06-05 19:46
你“漏保經(jīng)過(guò)三相線(xiàn)+零線(xiàn)。接到數控機床為三相電源+地線(xiàn)（沒(méi)有零線(xiàn)）”的做法是錯誤的。

進(jìn)了漏保后的零線(xiàn)不能用作接地（PE）線(xiàn)的，你這樣接不跳就見(jiàn)鬼啦。

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