電機維修知識
四個電機(ji)維修知識點，以(yi)便(bian)于(yu)客戶在電詢問題(ti)時，我們(men)能及(ji)時回(hui)答并協助解決問題(ti)。
1.電動機受潮應怎樣干燥?
若(ruo)(ruo)有(you)條件最好將受(shou)潮(chao)電(dian)(dian)機送至(zhi)專(zhuan)業修理部(bu)干(gan)燥;若(ruo)(ruo)無條件也可(ke)自行處(chu)理，將電(dian)(dian)機接上(shang)220V單(dan)相電(dian)(dian)源(即電(dian)(dian)機三根(gen)進線(xian)(xian)接上(shang)單(dan)相火線(xian)(xian)，另(ling)三根(gen)出線(xian)(xian)接上(shang)零線(xian)(xian))，若(ruo)(ruo)輕微受(shou)潮(chao)烘兩(liang)個小時(shi)即可(ke)，若(ruo)(ruo)受(shou)潮(chao)較嚴重(zhong)需烘一至(zhi)兩(liang)天。烘好使用前，用兆(zhao)歐(ou)表測(ce)其絕緣電(dian)(dian)阻，不低于(yu)0.5MΩ就可(ke)正常使用。
2.電動(dong)機三相電流不平怎(zen)樣處理(li)?
三(san)(san)相(xiang)電(dian)(dian)(dian)(dian)源平(ping)(ping)衡(heng)時(shi)，電(dian)(dian)(dian)(dian)動機(ji)(ji)的(de)(de)三(san)(san)相(xiang)空載電(dian)(dian)(dian)(dian)流(liu)中(zhong)任(ren)何(he)一(yi)(yi)相(xiang)與(yu)三(san)(san)相(xiang)平(ping)(ping)均值的(de)(de)偏差(cha)應不大(da)于三(san)(san)相(xiang)平(ping)(ping)均值的(de)(de)10%。用(yong)(yong)戶所提出(chu)的(de)(de)三(san)(san)相(xiang)電(dian)(dian)(dian)(dian)流(liu)不平(ping)(ping)衡(heng)問(wen)題(ti)(ti)(ti)，絕大(da)部分是(shi)電(dian)(dian)(dian)(dian)機(ji)(ji)以(yi)外(wai)用(yong)(yong)戶電(dian)(dian)(dian)(dian)源方(fang)面(mian)(mian)的(de)(de)問(wen)題(ti)(ti)(ti)(包(bao)括本身(shen)電(dian)(dian)(dian)(dian)壓(ya)不平(ping)(ping)衡(heng)和電(dian)(dian)(dian)(dian)盤接(jie)線(xian)(xian)接(jie)觸(chu)不良所造(zao)成)，具體檢(jian)測的(de)(de)方(fang)法是(shi)把三(san)(san)相(xiang)電(dian)(dian)(dian)(dian)源倒(dao)相(xiang)看一(yi)(yi)下，(注意一(yi)(yi)定要在(zai)(zai)電(dian)(dian)(dian)(dian)機(ji)(ji)出(chu)線(xian)(xian)盒接(jie)線(xian)(xian)部位倒(dao)，這(zhe)樣(yang)可(ke)以(yi)清楚的(de)(de)判斷出(chu)電(dian)(dian)(dian)(dian)機(ji)(ji)以(yi)外(wai)部分的(de)(de)故(gu)障(zhang))，即假設當(dang)時(shi)三(san)(san)相(xiang)電(dian)(dian)(dian)(dian)源接(jie)線(xian)(xian)順(shun)序(xu)為U、V、W，現在(zai)(zai)重新改接(jie)成W、U、V，這(zhe)樣(yang)仍然能(neng)夠保(bao)證電(dian)(dian)(dian)(dian)機(ji)(ji)原來(lai)(lai)的(de)(de)轉向，如原先三(san)(san)相(xiang)電(dian)(dian)(dian)(dian)流(liu)最(zui)高或最(zui)低(di)的(de)(de)一(yi)(yi)相(xiang)在(zai)(zai)倒(dao)線(xian)(xian)的(de)(de)過(guo)程(cheng)當(dang)中(zhong)隨之線(xian)(xian)的(de)(de)改變而改變，則說明電(dian)(dian)(dian)(dian)源有問(wen)題(ti)(ti)(ti)，電(dian)(dian)(dian)(dian)機(ji)(ji)本身(shen)沒有問(wen)題(ti)(ti)(ti)，如最(zui)高或最(zui)低(di)一(yi)(yi)相(xiang)固定在(zai)(zai)原先一(yi)(yi)相(xiang)不動，則說明電(dian)(dian)(dian)(dian)機(ji)(ji)可(ke)能(neng)有問(wen)題(ti)(ti)(ti)。但(dan)有時(shi)用(yong)(yong)戶采(cai)用(yong)(yong)的(de)(de)是(shi)星角接(jie)轉換起動，從電(dian)(dian)(dian)(dian)機(ji)(ji)接(jie)出(chu)來(lai)(lai)的(de)(de)是(shi)六根(gen)線(xian)(xian)，則用(yong)(yong)同樣(yang)的(de)(de)方(fang)法先倒(dao)上面(mian)(mian)三(san)(san)根(gen)，如不行，再倒(dao)下面(mian)(mian)的(de)(de)三(san)(san)根(gen)線(xian)(xian)。
3.電(dian)動機超載(zai)怎(zen)樣處理?
將傳(chuan)動(dong)(dong)(dong)皮帶除(chu)去(qu)，用手轉(zhuan)(zhuan)動(dong)(dong)(dong)被帶動(dong)(dong)(dong)的機器主(zhu)軸(zhou)，看(kan)主(zhu)軸(zhou)轉(zhuan)(zhuan)動(dong)(dong)(dong)是(shi)否靈(ling)活(huo)。若不能靈(ling)活(huo)轉(zhuan)(zhuan)動(dong)(dong)(dong)，則應找(zhao)出原(yuan)因并維修;若能靈(ling)活(huo)轉(zhuan)(zhuan)動(dong)(dong)(dong)說明原(yuan)因不在此，那應調節配套設備，減小(xiao)(xiao)水泵流(liu)量(liang)或風(feng)機風(feng)量(liang)或進料設備的進量(liang)等，以此來減小(xiao)(xiao)電動(dong)(dong)(dong)機的負載。
4.電動(dong)機缺(que)相怎樣處理(li)?
電動(dong)機缺(que)相的(de)故障，一般都是(shi)發(fa)生在繞組以外的(de)引線路(lu)，故檢查相保(bao)險(xian)絲(si)是(shi)否熔(rong)斷、接線端是(shi)否脫落(luo)及引線有無斷路(lu)，故障即(ji)可(ke)排除。
