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gaogaiga
新會(huì )是全廣東工資最低。
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樓主  發(fā)表于: 2009-04-10 15:49
我廠(chǎng)有一臺masterdrivers的整流器（6SE7024-1EP85-0AA0），后面帶4臺masterdrivers MC變頻器。在巡檢時(shí)，無(wú)意測量了一下它整流出來(lái)的電壓，發(fā)現其中兩相對地是270-280V，但有一相電壓為0，不知道這是否正常。因為帶動(dòng)的4臺MC變頻器好像都能正常工作�。�！
gaogaiga
新會(huì )是全廣東工資最低。
級別: 家園�？�
精華主題: 0
發(fā)帖數量: 817 個(gè)
工控威望: 870 點(diǎn)
下載積分: 8842 分
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1樓  發(fā)表于: 2009-04-10 16:48
復習一下電力電子課本明白了，是兩相一正一負，另外一根是地線(xiàn)所以是0V。一下子走入交流電的誤區了，呵呵

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