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ruye
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樓主  發(fā)表于: 2008-08-20 16:01
生產(chǎn)線(xiàn)的控制柜，引入3相電，其中一相為PLC和直流電源的供電，最近一通電保險就燒掉，不知道為什么。PLC前的濾波器已經(jīng)燒壞已摘除。車(chē)間的變化是最近剛購進(jìn)一臺工作電流150A的點(diǎn)焊機。
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華豐
只有虛心學(xué)習,才能讓人進(jìn)步!
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1樓  發(fā)表于: 2008-08-20 18:28
問(wèn)題不夠詳細，不過(guò)你先檢查一下供給真流電源的橋式整流電路可能有問(wèn)題，看是否整流二極管擊穿引起短路！

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