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achang945
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樓主  發(fā)表于: 2018-10-17 10:11
多少A以下的空開(kāi)可以直接推上去，上電?負載沒(méi)有大功率三相電機
客戶(hù)現場(chǎng)只有三相380V，沒(méi)有零線(xiàn)，但是設備需要用單項220V，加了三相380V變單項220V的變壓器，可是這臺設備還有一個(gè)3相5線(xiàn)的加熱器，想問(wèn)，這個(gè)加熱器的線(xiàn)怎么接?可以將通過(guò)變壓器的零線(xiàn)接上去嗎？
zlcp123
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1樓  發(fā)表于: 2018-10-17 12:31
3相5線(xiàn)？那就是帶控制箱的咯，加個(gè)380變220的控制變壓器，把內部供電線(xiàn)路改改就行了，多大的事兒

看了一下你的發(fā)帖，基本都是基礎問(wèn)題，老是想著(zhù)求助別人不自己努力，基本就是混飯
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