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    直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)機(ji)在(zai)使用(yong)過(guo)程(cheng)中,有許多要注(zhu)意的(de)(de)地方.需要注(zhu)意的(de)(de)事(shi)項,就由直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)機(ji)維修廠家和(he)大(da)家介紹直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)機(ji)在(zai)直(zhi)(zhi)(zhi)(zhi)接起(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)因(yin)起(qi)動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)流很大(da),會對(dui)電(dian)(dian)源(yuan)及電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)本身帶來(lai)(lai)極大(da)的(de)(de)影(ying)響.因(yin)此,除(chu)功率很小的(de)(de)直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)機(ji)可(ke)以直(zhi)(zhi)(zhi)(zhi)接起(qi)動(dong)(dong)(dong)(dong)(dong)外(wai),一般的(de)(de)直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)都要采(cai)(cai)取減(jian)壓措(cuo)施來(lai)(lai)限制起(qi)動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)流當直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)機(ji)采(cai)(cai)用(yong)減(jian)壓起(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi),要掌握好起(qi)動(dong)(dong)(dong)(dong)(dong)過(guo)程(cheng)所需的(de)(de)時(shi)(shi)間,不(bu)能(neng)起(qi)動(dong)(dong)(dong)(dong)(dong)過(guo)快,也不(bu)能(neng)過(guo)慢,并(bing)確保起(qi)動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)流不(bu)能(neng)過(guo)大(da)（一般為額定電(dian)(dian)流的(de)(de)1～2倍）在(zai)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)起(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)就應做好相應的(de)(de)停車準備,一旦出現意外(wai)情(qing)況時(shi)(shi)應立即切除(chu)電(dian)(dian)源(yuan),并(bing)查(cha)找故(gu)障原(yuan)因(yin)在(zai)直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)機(ji)運行時(shi)(shi),對(dui)于電(dian)(dian)機(ji)應觀察(cha)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)其轉速(su)是否(fou)正常(chang)有無噪聲振動(dong)(dong)(dong)(dong)(dong)等(deng).

   倘若出現(xian)冒煙(yan)或發(fa)出焦(jiao)臭味(wei)等(deng)現(xian)象,應立(li)即(ji)停機(ji)查找原(yuan)因注意觀察直流電(dian)機(ji)運(yun)行時電(dian)刷與換(huan)向器表面的(de)火花情況電(dian)機(ji)修理的(de)繞組接地(di)指繞組與鐵芯或與機(ji)殼絕緣破壞而造成的(de)接地(di).是由于機(ji)殼帶電(dian),控制線路失控,繞組短路發(fa)熱(re),致(zhi)使電(dian)動機(ji)無法正常(chang)運(yun)行.

  下面請重慶直流電(dian)(dian)機(ji)(ji)維修 給大家(jia)介紹一下電(dian)(dian)機(ji)(ji)修理繞組(zu)(zu)接(jie)地(di)產生原因:繞組(zu)(zu)受潮(chao)使(shi)絕(jue)緣(yuan)電(dian)(dian)阻下降;電(dian)(dian)動(dong)機(ji)(ji)長期過載(zai)運行;有(you)害氣體腐(fu)蝕;金屬異物侵入繞組(zu)(zu)內(nei)部(bu)損壞(huai)(huai)絕(jue)緣(yuan);重繞定子(zi)繞組(zu)(zu)時(shi)絕(jue)緣(yuan)損壞(huai)(huai)碰鐵心;繞組(zu)(zu)端(duan)部(bu)碰端(duan)蓋(gai)機(ji)(ji)座;定,轉子(zi)磨擦引起絕(jue)緣(yuan)灼傷;引出線絕(jue)緣(yuan)損壞(huai)(huai)與(yu)殼體相碰;過電(dian)(dian)壓使(shi)絕(jue)緣(yuan)擊穿解(jie)決方法:(1)繞組(zu)(zu)受潮(chao)引起接(jie)地(di)的應先(xian)進(jin)行烘(hong)干(gan)(gan),當冷卻(que)到(dao)60——70℃左(zuo)右(you)時(shi),澆上絕(jue)緣(yuan)漆后再烘(hong)干(gan)(gan).(2)繞組(zu)(zu)端(duan)部(bu)絕(jue)緣(yuan)損壞(huai)(huai)時(shi),在接(jie)地(di)處重新進(jin)行絕(jue)緣(yuan)處理,涂(tu)漆,再烘(hong)干(gan)(gan).(3)繞組(zu)(zu)接(jie)地(di)點(dian)在槽內(nei)時(shi),應重繞繞組(zu)(zu)或(huo)更換部(bu)分繞組(zu)(zu)元件