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weisongyuan
永遠年輕
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樓主  發(fā)表于: 2019-08-18 13:52
我現在有兩臺90KW直流電動(dòng)機,使用歐陸590調速器控制運轉,(標注為 A機  B機)該設備是二手設備,昨天開(kāi)始調試 出現如下情況:A機啟動(dòng)后 空載電壓100V左右 電流接近100A,電動(dòng)機可以達到額定轉速,但是不能加負載,加負載后電機堵轉。調速器沒(méi)有報警出現B機啟動(dòng)后 空載電流很低,電壓200V左右,加負載后運轉正常。所以初步判定電機電樞故障,今天將A  B 調速器調換試驗,用B機調速器帶動(dòng)A機工作,這時(shí)A機工作正常 可以加負載,電樞電壓  電流與原來(lái)沒(méi)調換前的B機基本相等 所以應該排除是A電動(dòng)機故障,下午準備使用原A機調速器帶動(dòng)B機工作再試試。  估計恐怕還是不能使用。  所以求助   出現這種情況應該是什么原因造成的    打電話(huà)詢(xún)問(wèn)設備原來(lái)的廠(chǎng)家   回復說(shuō) 在他們那里使用沒(méi)有問(wèn)題的    
 兩臺調速器 勵磁電壓  電流   經(jīng)測量  完全相同
永遠年輕

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