電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)維(wei)(wei)修(xiu)維(wei)(wei)修(xiu)技(ji)巧主要有以下幾(ji)點直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)在(zai)直(zhi)(zhi)(zhi)接起動(dong)(dong)(dong)時因起動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)很大(da),這將對電(dian)(dian)(dian)(dian)(dian)(dian)源及電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)本身帶(dai)來(lai)極大(da)的(de)影響.因此(ci),除功率很小的(de)直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)可以直(zhi)(zhi)(zhi)接起動(dong)(dong)(dong)外,一般的(de)直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)都要采(cai)取(qu)減壓(ya)措施來(lai)限制起動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)當直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)采(cai)用(yong)減壓(ya)起動(dong)(dong)(dong)時,要掌(zhang)握好(hao)起動(dong)(dong)(dong)過(guo)程所需的(de)時間,不(bu)能(neng)起動(dong)(dong)(dong)過(guo)快,也不(bu)能(neng)過(guo)慢,并確(que)保(bao)起動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)不(bu)能(neng)過(guo)大(da)(一般為額定電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)的(de)1~2倍在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)起動(dong)(dong)(dong)時就(jiu)應做好(hao)相應的(de)停車準備,一旦出現意外情(qing)況時應立(li)即切除電(dian)(dian)(dian)(dian)(dian)(dian)源,并查找故障原因在(zai)直(zhi)(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)運行時,應觀察電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)轉速是否(fou)正常(chang);有無噪聲(sheng),振(zhen)動(dong)(dong)(dong)等;
有(you)無冒(mao)煙或發出(chu)焦(jiao)臭味(wei)等現象,如有(you)應立(li)即(ji)停機查找(zhao)原因注意觀察直流電(dian)動(dong)機運行時電(dian)刷(shua)與換(huan)向器表(biao)面的(de)(de)(de)火(huo)花情況(kuang).在額定負載工(gong)況(kuang)下,一般直流電(dian)動(dong)機只允許有(you)不超過1 1/2級的(de)(de)(de)火(huo)花電(dian)機維修(xiu)的(de)(de)(de)時候(hou)也是講究方式方法(fa)的(de)(de)(de),并不是出(chu)現問題(ti)之后(hou)埋(mai)頭苦干,這樣根本解決不了任(ren)何問題(ti).就比如直流電(dian)機在維修(xiu)的(de)(de)(de)時候(hou),找(zhao)對方法(fa)就能達到(dao)事半(ban)功倍的(de)(de)(de)效(xiao)果.
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