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wuxi41
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樓主  發(fā)表于: 2018-06-12 20:30
求教個(gè)問(wèn)題，現在有個(gè)設備用固態(tài)控制220v加熱圈，今天測沒(méi)有24v控制電源輸出測對零線(xiàn)有220v電壓，判斷固態(tài)繼電器壞了，更換新的，就接了一個(gè)火線(xiàn)，控制部分沒(méi)接，負載也沒(méi)接，但是輸出端對零線(xiàn)又有220v電壓！何解
wuxi41
級別: 略有小成
精華主題: 0
發(fā)帖數量: 105 個(gè)
工控威望: 364 點(diǎn)
下載積分: 6230 分
在線(xiàn)時(shí)間: 108(小時(shí))
注冊時(shí)間: 2007-12-20
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1樓  發(fā)表于: 2018-06-12 20:38
接負載也不正常

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