一、檢查
1、認真檢查銘牌數據,確認電動機型號符合使用要求。濟南汽保設備配件
2、用500V兆歐表(biao)測量電(dian)動機繞組對外殼的絕緣電(dian)阻,絕緣電(dian)阻 應大于0.5MΩ。
二、安裝
1、電動機—般安裝在室內清潔、干燥的場(chang)所,周圍(wei)必須(xu)通(tong)風良好,環境空氣(qi)更(geng)高(gao)溫度(du)不(bu)超過40℃,更(geng)低溫度(du)不(bu)低于-15℃,并應防止(zhi)強烈的熱輻射(she)。
2、電動機控制電器應有缺相保護和(he)過載熱保護裝置,YA系列增安型電動機須根據銘牌tE時間及起動電流比IA/IN選擇合適的過載熱保護裝置。
3、按接線(xian)(xian)圖(tu)接電源線(xian)(xian)接線(xian)(xian)頭連接要(yao)緊固(gu),帶(dai)引出電纜(lan)、電線(xian)(xian)的(de)電動(dong)機(ji),可直接和電源線(xian)(xian)連接,接頭處要(yao)絕緣密封。
4、當電(dian)源(yuan)線(xian)(xian),相序和(he)電(dian)動(dong)粗接(jie)線(xian)(xian)頭標志對應(ying)連(lian)接(jie)時,從軸伸端看電(dian)動(dong)機順時針旋轉。需要改變(bian)轉向(xiang)時,改變(bian)兩根電(dian)源(yuan)線(xian)(xian)接(jie)線(xian)(xian)的位置(zhi)即(ji)可。
5、YD系列(lie)等變級多速(su)異步電(dian)(dian)(dian)(dian)動(dong)機是利(li)用換(huan)接(jie)引出(chu)線的方法來控(kong)制轉速(su)變化的,為(wei)保證多速(su)電(dian)(dian)(dian)(dian)動(dong)機運行的可靠性(xing),設計和(he)操作控(kong)制裝置時(shi)應注(zhu)意,在(zai)高速(su)切(qie)(qie)換(huan)為(wei)低速(su)時(shi),必(bi)須在(zai)切(qie)(qie)斷(duan)電(dian)(dian)(dian)(dian)源的同時(shi)斷(duan)開2Y接(jie)線的中性(xing)點,以免(mian)在(zai)低速(su)繞(rao)組接(jie)通時(shi)引起電(dian)(dian)(dian)(dian)源短路.在(zai)高速(su)切(qie)(qie)換(huan)為(wei)低速(su)的過程中,必(bi)續待電(dian)(dian)(dian)(dian)動(dong)機停轉后才能接(jie)通低速(su)繞(rao)組的電(dian)(dian)(dian)(dian)源,以減少對電(dian)(dian)(dian)(dian)動(dong)機及負載的沖擊.轉速(su)切(qie)(qie)換(huan)要注(zhu)意電(dian)(dian)(dian)(dian)動(dong)機的轉向。
6、電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)可以采(cai)(cai)有(you)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器,齒輪(lun)、皮(pi)帶(dai)(dai)與(yu)(yu)負載(zai)機(ji)(ji)械(xie)聯(lian)接,4kw以上的(de)2極電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)30kw以上的(de)4極電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)不宜用(yong)皮(pi)帶(dai)(dai)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong),雙軸(zhou)(zhou)(zhou)(zhou)(zhou)伸電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)的(de)第二軸(zhou)(zhou)(zhou)(zhou)(zhou)伸只能(neng)用(yong)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)囂傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)。聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器、皮(pi)帶(dai)(dai)輪(lun)軸(zhou)(zhou)(zhou)(zhou)(zhou)孔與(yu)(yu)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)(zhou)的(de)配合(he)松緊應合(he)適,安(an)裝(zhuang)時嚴禁用(yong)重錘敲擊。 采(cai)(cai)用(yong)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)時,電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線與(yu)(yu)負載(zai)機(ji)(ji)械(xie)軸(zhou)(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線應重合(he),聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器軸(zhou)(zhou)(zhou)(zhou)(zhou)向保(bao)留1~3mm間隙。 采(cai)(cai)用(yong)皮(pi)帶(dai)(dai)傳(chuan)(chuan)(chuan)達(da)室動(dong)(dong)(dong)時,電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線應與(yu)(yu)負載(zai)機(ji)(ji)械(xie)軸(zhou)(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線平行,皮(pi)帶(dai)(dai)中(zhong)(zhong)心(xin)線與(yu)(yu)軸(zhou)(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線相互(hu)垂直(zhi)。
三、接地
電(dian)動機必須可(ke)靠(kao)接(jie)(jie)地(di),接(jie)(jie)地(di)方式、接(jie)(jie)地(di)電(dian)阻(zu)等(deng)應符合《工業與民用 電(dian)力裝置的(de)(de)接(jie)(jie)地(di)設計(ji)規(gui)范》《工廠電(dian)力設計(ji)技術(shu)規(gui)范》等(deng)電(dian)氣(qi)安(an)全管(guan)理 的(de)(de)規(gui)定,接(jie)(jie)地(di)電(dian)阻(zu)小于4Ω。
四、起動
1、合閘后電(dian)動機(ji)應立即起(qi)動起(qi)來,達到(dao)正常轉速并平穩運行,否 則皮立即切(qie)斷(duan)電(dian)源,檢查并排除故障。
2、起動(dong)后(hou)注(zhu)意觀察電動(dong)機(ji)傳動(dong)裝置、負載機(ji)械、電壓表和(he)電流表, 若有異常現(xian)象(xiang)應立即停(ting)機(ji)。
3、電動機空載(zai)連續起動一般不超過(guo)4次,運行至熱態停(ting)機后連續 起動不得超過(guo)2次,否(fou)則容易(yi)燒壞電動機。
4、根據電網容量(liang)、負載大小和電動機功率等(deng),合理選擇(ze)起動方式, 較大功率電動機宜采采用一三角法(fa)或降壓方式起動。
五、運行
1、電源電壓(ya)與額定(ding)電壓(ya)的偏差不超過(guo)(guo)±5%,三相電壓(ya)不平(ping)衡不超過(guo)(guo)1.5%。
2、電(dian)動(dong)機運行電(dian)流不得超過(guo)銘牌上(shang)的(de)額定(ding)電(dian)流,三相電(dian)流不平(ping)衡(heng)量不超過(guo)80%,否則會造成電(dian)動(dong)機發(fa)熱甚至(zhi)燒毀。
3、用溫(wen)度(du)計測量電動(dong)機機殼表面(mian)溫(wen)度(du)應(ying)不超過(guo)80℃,軸承(cheng)的溫(wen)度(du)應(ying)不超過(guo)95℃。
4、電(dian)動機應經常保(bao)持清潔、干燥、通(tong)風良好,進風口與出(chu)風口必霜保(bao)持暢通(tong)。5、運行(xing)中電(dian)動機出(chu)現冒(mao)煙、劇烈振動、異常聲音、特殊氣味、轉速明顯下降;負載設(she)備出(chu)現故障;發生人身觸電(dian)時應立(li)即(ji)斷電(dian)停機。
六、軸(zhou)承潤滑
1、電動(dong)機軸承潤(run)滑應良好(hao),一般運(yun)行3000-5000小時后,應停機保養(yang)補充或(huo)更換潤(run)滑脂(zhi),潤(run)滑脂(zhi)牌號(hao)為ZL--3鋰基潤(run)滑脂(zhi)。
2、存放或停用時(shi)間超過兩年的電(dian)動(dong)機使用前(qian)應對軸承的潤(run)滑(hua)情(qing)況進(jin)行(xing)檢(jian)查,必(bi)要時(shi)補(bu)充或更換潤(run)滑(hua)脂。
3、中心高132及以下機座號電(dian)(dian)動機用(yong)密封(feng)軸(zhou)承(cheng),中心高160以 上(shang)機座號電(dian)(dian)動機一般(ban)(ban)用(yong)非(fei)(fei)密封(feng)軸(zhou)承(cheng),電(dian)(dian)動機使用(yong)過程中密封(feng)軸(zhou)承(cheng)不(bu)必 更換(huan)潤(run)(run)滑脂(zhi)(zhi).非(fei)(fei)密封(feng)軸(zhou)承(cheng)應定期更換(huan)清潔(jie)的(de)(de)潤(run)(run)滑脂(zhi)(zhi).潤(run)(run)滑脂(zhi)(zhi)加(jia)注要適 量,一般(ban)(ban)填充(chong)軸(zhou)承(cheng)內外圈之間(jian)空腔的(de)(de)1/3-1/2,有(you)注脂(zhi)(zhi)裝置的(de)(de)電(dian)(dian)動機,用(yong)潤(run)(run)滑槍加(jia)注3-4下即可,加(jia)注前打開軸(zhou)承(cheng)蓋底部的(de)(de)排(pai)放孔或 蓋板,電(dian)(dian)動機運行20分鐘后再堵上(shang)排(pai)放孔或上(shang)好(hao)蓋板,拆裝排(pai)放孔螺 塞或蓋板時應斷電(dian)(dian)停(ting)機
七、運輸(shu)及貯存
在運輸(shu)過程中電動機應(ying)不(bu)受潮,軸伸(shen)不(bu)磕(ke)碰,零件不(bu)損壞等(deng).貯 存(cun)場所應(ying)保持清(qing)潔、干燥(zao)、通風,無腐(fu)蝕(shi)性氣體,避(bi)免環境溫度(du)的急劇變化等(deng)。