高壓電(dian)(dian)機(ji)(ji)維護小貼(tie)士(shi):當電(dian)(dian)機(ji)(ji)振(zhen)動(dong)(dong)比(bi)平(ping)時大(da)時,要用測振(zhen)儀沿水(shui)平(ping)和垂(chui)直方向(xiang)測量(liang)各(ge)部位的振(zhen)動(dong)(dong)值,并做好相應記錄(lu)。他應傾聽電(dian)(dian)機(ji)(ji)定子腔(qiang)的內部聲音(yin)(yin)和軸承的旋轉聲音(yin)(yin),并檢查(cha)底腳,如果沒有(you)明顯的異常(chang)。然后斷開被拖(tuo)機(ji)(ji)械,單獨(du)空(kong)轉電(dian)(dian)機(ji)(ji),確定是(shi)(shi)電(dian)(dian)機(ji)(ji)本身的振(zhen)動(dong)(dong)還是(shi)(shi)被拖(tuo)機(ji)(ji)械引起的振(zhen)動(dong)(dong)。在(zai)生產(chan)中會(hui)發現電(dian)(dian)機(ji)(ji)修理后由(you)于各(ge)種(zhong)原因導致(zhi)三相繞(rao)組磁勢不(bu)(bu)對(dui)稱,電(dian)(dian)機(ji)(ji)空(kong)載(zai)或低負荷時振(zhen)動(dong)(dong)不(bu)(bu)是(shi)(shi)很明顯,但一旦皮(pi)帶負荷增加,電(dian)(dian)機(ji)(ji)的振(zhen)動(dong)(dong)就會(hui)逐漸變大(da)。
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