西門子力矩電機轉子脫落（磁鐵壞）

致力于(yu)做上海西門子維修(xiu)企(qi)業，及(ji)時為客戶(hu)提供高(gao)品(pin)質的維修(xiu)服務和(he)技術支持(chi)-何工

維(wei)(wei)(wei)修(xiu)(xiu)請選擇我(wo)們(men)：從業至(zhi)今十一(yi)年維(wei)(wei)(wei)修(xiu)(xiu)經(jing)驗(yan)，與(yu)國(guo)內外多(duo)家(jia)科研機構均(jun)有(you)深度技術合作，自主研發多(duo)種高精密測試儀器(qi)，維(wei)(wei)(wei)修(xiu)(xiu)過的(de)西門子(zi)不(bu)少于150種，維(wei)(wei)(wei)修(xiu)(xiu)過的(de)各種不(bu)同型號(hao)不(bu)少于8萬(wan)種，保障修(xiu)(xiu)復率總體保持在95%以(yi)上，占(zhan)具國(guo)內同行(xing)業先水(shui)平(ping)。修(xiu)(xiu)好的(de)設備(bei)客戶收到(dao)后無需(xu)再(zai)調(diao)試，裝機即可使(shi)用(yong)。正常使(shi)用(yong)可達(da)到(dao)和(he)設備(bei)一(yi)樣的(de)性能(neng)和(he)使(shi)用(yong)年限(xian)(xian)。現在維(wei)(wei)(wei)修(xiu)(xiu)的(de)級別(bie)可以(yi)不(bu)限(xian)(xian)任(ren)何(he)品牌，不(bu)限(xian)(xian)任(ren)何(he)型號(hao)，不(bu)限(xian)(xian)任(ren)何(he)生產(chan)年份(fen)的(de)設備(bei)。只(zhi)要是西門子(zi)的(de)故障我(wo)們(men)就可以(yi)維(wei)(wei)(wei)修(xiu)(xiu)。維(wei)(wei)(wei)修(xiu)(xiu)所需(xu)更(geng)換的(de)配件，均(jun)為原(yuan)廠。

西門子力矩電機轉子脫落（磁鐵壞）

對于電機是否損壞的檢(jian)驗方法(fa):

1、 萬用表(biao)測電(dian)流(liu)，三(san)相不平(ping)衡率不大于10%；

2、搖表測絕緣，每相對地(di)、相間均不小于(yu)0.5兆(zhao)；

3、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)橋測(ce)直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，三(san)(san)相(xiang)(xiang)不(bu)(bu)平衡率不(bu)(bu)大于(yu)2%；即首先(xian)用萬用表去(qu)量(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓以(yi)及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)（沒(mei)搖(yao)表的(de)(de)情(qing)況(kuang)下(xia)），電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機維修師傅表示首先(xian)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)側(ce)UVW三(san)(san)相(xiang)(xiang)中(zhong)(zhong)(zhong)選(xuan)取(qu)兩相(xiang)(xiang)，測(ce)量(liang)(liang)一下(xia)兩端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓是(shi)否為(wei)380v（高于(yu)380V沒(mei)事）由于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)網中(zhong)(zhong)(zhong)有(you)時電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓不(bu)(bu)穩定導(dao)致的(de)(de)。依次測(ce)量(liang)(liang)UV ,VW ,UW三(san)(san)相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)側(ce)測(ce)量(liang)(liang)完成之(zhi)(zhi)后(hou)測(ce)量(liang)(liang)負載端(duan)(duan)，測(ce)量(liang)(liang)uv ，vw ，uw這三(san)(san)相(xiang)(xiang)之(zhi)(zhi)間的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是(shi)否相(xiang)(xiang)同(tong)或者講(jiang)差別(bie)不(bu)(bu)大，如果發現其(qi)(qi)中(zhong)(zhong)(zhong)有(you)一對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)偏離較大則有(you)可(ke)能是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機燒(shao)毀(hui)了。后(hou)測(ce)其(qi)(qi)中(zhong)(zhong)(zhong)一相(xiang)(xiang)對地的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)是(shi)否為(wei)0，這樣可(ke)以(yi)判(pan)斷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機是(shi)否燒(shao)毀(hui)了。（電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機內(nei)部采取(qu)△接(jie)法，內(nei)部連(lian)在一起(qi)故只要測(ce)量(liang)(liang)其(qi)(qi)中(zhong)(zhong)(zhong)的(de)(de)一相(xiang)(xiang)即可(ke)）

力(li)矩電機(ji)轉子脫落（磁鐵壞）；電機在拆卸前應做的檢查和試驗有以下幾點：

　　(1)電機(ji)維修在拆(chai)卸(xie)前(qian)，要(yao)用壓(ya)縮空氣吹凈(jing)電機(ji)表面(mian)灰塵，并將(jiang)表面(mian)污垢(gou)擦拭干(gan)凈(jing)。

　　(2)選(xuan)擇電機解體的工作(zuo)地點(dian)，清理(li)現場(chang)環(huan)境(jing)。

　　(3)熟悉電機結(jie)構(gou)特點和檢(jian)修技術(shu)要求。

　　(4)準備(bei)好解體所(suo)需工具(ju)(包括專(zhuan)用工具(ju))和(he)設備(bei)。

　　(5)為了(le)進一步了(le)解電(dian)(dian)機運行中(zhong)的缺陷(xian)，有條件時可在拆卸前做一次(ci)檢查(cha)試(shi)驗(yan)。為此，將(jiang)電(dian)(dian)機帶上負(fu)載(zai)試(shi)轉，詳(xiang)細檢查(cha)電(dian)(dian)機各部分溫度、聲音、振動等情況(kuang)，并測(ce)試(shi)電(dian)(dian)壓、電(dian)(dian)流、轉速等，然后再斷開負(fu)載(zai)，單獨做一次(ci)空(kong)載(zai)檢查(cha)試(shi)驗(yan)，測(ce)出空(kong)載(zai)電(dian)(dian)流和(he)空(kong)載(zai)損耗，做好記錄。

　　(6)切(qie)斷電源，拆除電機外部接線，做好記錄。

　　(7)選用合適電(dian)(dian)(dian)壓的(de)兆歐表測試電(dian)(dian)(dian)機(ji)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)。為了跟上(shang)次檢(jian)修時所測的(de)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)值相比(bi)較以判斷電(dian)(dian)(dian)機(ji)絕(jue)緣(yuan)(yuan)變化趨勢和絕(jue)緣(yuan)(yuan)狀態，應(ying)將不同(tong)溫(wen)度下測出的(de)絕(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)值換算到同(tong)一(yi)溫(wen)度，一(yi)般換算至(zhi)75℃。空氣濾芯

　　(8)測試吸(xi)收比K。當吸(xi)收比大于1.33時，表明(ming)電(dian)機絕緣(yuan)不曾受潮或受潮程度不嚴重。為了跟以前數(shu)據進行比較(jiao)，同樣(yang)要將任(ren)意溫度下(xia)測得的吸(xi)收比換算(suan)到同一溫度。