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。房山汽保設備配件
2、用(yong)500V兆歐(ou)表測(ce)量電(dian)動機繞組對外殼的絕緣電(dian)阻(zu),絕緣電(dian)阻(zu) 應大于0.5MΩ。
二、安裝
1、電動機—般安裝在室(shi)內清潔(jie)、干燥的(de)場(chang)所,周圍必須(xu)通風良好(hao),環境空(kong)氣更高(gao)溫度(du)不(bu)超過40℃,更低溫度(du)不(bu)低于-15℃,并應防止強烈(lie)的(de)熱輻(fu)射。
2、電(dian)(dian)動(dong)機控制電(dian)(dian)器應有缺相保護和過載(zai)熱保護裝置,YA系(xi)列(lie)增安型電(dian)(dian)動(dong)機須根據(ju)銘牌tE時間及起動(dong)電(dian)(dian)流比IA/IN選擇合適的(de)過載(zai)熱保護裝置。
3、按接(jie)線(xian)圖接(jie)電源線(xian)接(jie)線(xian)頭連(lian)接(jie)要(yao)緊固,帶引(yin)出電纜、電線(xian)的電動機,可直接(jie)和(he)電源線(xian)連(lian)接(jie),接(jie)頭處要(yao)絕(jue)緣(yuan)密封。
4、當電(dian)源線(xian)(xian),相(xiang)序和電(dian)動粗(cu)接線(xian)(xian)頭標志對(dui)應連接時(shi),從軸伸端看電(dian)動機順時(shi)針旋轉。需(xu)要改(gai)變(bian)轉向時(shi),改(gai)變(bian)兩(liang)根電(dian)源線(xian)(xian)接線(xian)(xian)的位置即可。
5、YD系列等(deng)變級多速(su)異步電(dian)(dian)(dian)(dian)動(dong)機(ji)是利用換(huan)(huan)(huan)接(jie)(jie)引出線的(de)(de)(de)方法來控制(zhi)轉速(su)變化的(de)(de)(de),為(wei)保證多速(su)電(dian)(dian)(dian)(dian)動(dong)機(ji)運(yun)行的(de)(de)(de)可靠性,設(she)計和(he)操作控制(zhi)裝(zhuang)置時(shi)(shi)應(ying)注意(yi),在高速(su)切(qie)換(huan)(huan)(huan)為(wei)低速(su)時(shi)(shi),必須在切(qie)斷電(dian)(dian)(dian)(dian)源的(de)(de)(de)同時(shi)(shi)斷開2Y接(jie)(jie)線的(de)(de)(de)中性點,以免在低速(su)繞組接(jie)(jie)通時(shi)(shi)引起電(dian)(dian)(dian)(dian)源短路.在高速(su)切(qie)換(huan)(huan)(huan)為(wei)低速(su)的(de)(de)(de)過程(cheng)中,必續(xu)待電(dian)(dian)(dian)(dian)動(dong)機(ji)停轉后才能接(jie)(jie)通低速(su)繞組的(de)(de)(de)電(dian)(dian)(dian)(dian)源,以減少對電(dian)(dian)(dian)(dian)動(dong)機(ji)及負載的(de)(de)(de)沖(chong)擊(ji).轉速(su)切(qie)換(huan)(huan)(huan)要(yao)注意(yi)電(dian)(dian)(dian)(dian)動(dong)機(ji)的(de)(de)(de)轉向。
6、電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)可以(yi)采有聯軸(zhou)(zhou)(zhou)(zhou)器,齒輪(lun)、皮帶(dai)與(yu)(yu)負(fu)載機(ji)(ji)械(xie)聯接,4kw以(yi)上(shang)的(de)(de)(de)2極電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)30kw以(yi)上(shang)的(de)(de)(de)4極電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)不宜(yi)用(yong)皮帶(dai)傳(chuan)動(dong),雙(shuang)軸(zhou)(zhou)(zhou)(zhou)伸電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)的(de)(de)(de)第(di)二軸(zhou)(zhou)(zhou)(zhou)伸只(zhi)能用(yong)聯軸(zhou)(zhou)(zhou)(zhou)囂傳(chuan)動(dong)。聯軸(zhou)(zhou)(zhou)(zhou)器、皮帶(dai)輪(lun)軸(zhou)(zhou)(zhou)(zhou)孔(kong)與(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)的(de)(de)(de)配合(he)松緊應(ying)合(he)適,安裝時(shi)嚴禁用(yong)重(zhong)錘敲擊。 采用(yong)聯軸(zhou)(zhou)(zhou)(zhou)器傳(chuan)動(dong)時(shi),電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線(xian)(xian)與(yu)(yu)負(fu)載機(ji)(ji)械(xie)軸(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線(xian)(xian)應(ying)重(zhong)合(he),聯軸(zhou)(zhou)(zhou)(zhou)器軸(zhou)(zhou)(zhou)(zhou)向保(bao)留(liu)1~3mm間隙。 采用(yong)皮帶(dai)傳(chuan)達室動(dong)時(shi),電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線(xian)(xian)應(ying)與(yu)(yu)負(fu)載機(ji)(ji)械(xie)軸(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線(xian)(xian)平(ping)行(xing),皮帶(dai)中(zhong)(zhong)心(xin)線(xian)(xian)與(yu)(yu)軸(zhou)(zhou)(zhou)(zhou)中(zhong)(zhong)心(xin)線(xian)(xian)相互(hu)垂(chui)直。
三、接地
電動機必(bi)須可靠接(jie)地(di)(di),接(jie)地(di)(di)方式、接(jie)地(di)(di)電阻等(deng)應(ying)符(fu)合《工業與民用 電力(li)裝置的接(jie)地(di)(di)設(she)計(ji)規范(fan)》《工廠(chang)電力(li)設(she)計(ji)技術(shu)規范(fan)》等(deng)電氣安全(quan)管理 的規定,接(jie)地(di)(di)電阻小于4Ω。
四、起動
1、合閘后電動(dong)機應(ying)立即起動(dong)起來,達到正常轉速(su)并平穩運行(xing),否 則(ze)皮立即切斷電源,檢查并排除故障。
2、起動(dong)后(hou)注意觀察電(dian)動(dong)機傳動(dong)裝置(zhi)、負載(zai)機械(xie)、電(dian)壓表和電(dian)流表, 若有異常現象應立即停機。
3、電動機空載(zai)連(lian)續(xu)起動一(yi)般不超(chao)過4次,運行至(zhi)熱態(tai)停機后連(lian)續(xu) 起動不得(de)超(chao)過2次,否則容易燒壞電動機。
4、根據(ju)電(dian)網容量、負(fu)載(zai)大小和(he)電(dian)動機功率等,合理選擇起(qi)(qi)動方式(shi), 較大功率電(dian)動機宜采采用一(yi)三角法或(huo)降壓方式(shi)起(qi)(qi)動。
五、運行
1、電(dian)源電(dian)壓與額定電(dian)壓的偏差(cha)不超過(guo)±5%,三相(xiang)電(dian)壓不平(ping)衡(heng)不超過(guo)1.5%。
2、電動機(ji)運行電流不得超(chao)(chao)過銘牌上的(de)額定電流,三相(xiang)電流不平(ping)衡量不超(chao)(chao)過80%,否則會造成電動機(ji)發熱甚至(zhi)燒毀(hui)。
3、用溫(wen)度計測量電動(dong)機機殼表面(mian)溫(wen)度應(ying)(ying)不超(chao)過80℃,軸承的溫(wen)度應(ying)(ying)不超(chao)過95℃。
4、電動(dong)機(ji)應(ying)經(jing)常(chang)保持清潔(jie)、干燥(zao)、通(tong)風良好,進風口與出風口必霜保持暢通(tong)。5、運行(xing)中電動(dong)機(ji)出現冒(mao)煙、劇烈振動(dong)、異(yi)常(chang)聲(sheng)音、特殊氣味、轉速明顯下降(jiang);負載設備出現故障;發(fa)生人(ren)身觸電時應(ying)立即斷電停機(ji)。
六、軸承潤滑(hua)
1、電動機軸承潤(run)滑(hua)應良好,一般運行3000-5000小(xiao)時后,應停機保養補充或更換潤(run)滑(hua)脂(zhi)(zhi),潤(run)滑(hua)脂(zhi)(zhi)牌號為(wei)ZL--3鋰基潤(run)滑(hua)脂(zhi)(zhi)。
2、存放或停用時(shi)間超過兩年的電動機使用前應對軸承的潤(run)滑(hua)情況進(jin)行(xing)檢查,必要時(shi)補充(chong)或更換(huan)潤(run)滑(hua)脂(zhi)。
3、中(zhong)(zhong)心高132及(ji)以(yi)下機(ji)(ji)(ji)座號電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)用密封軸(zhou)(zhou)承(cheng)(cheng),中(zhong)(zhong)心高160以(yi) 上(shang)(shang)(shang)機(ji)(ji)(ji)座號電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)一般(ban)用非密封軸(zhou)(zhou)承(cheng)(cheng),電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)使用過程中(zhong)(zhong)密封軸(zhou)(zhou)承(cheng)(cheng)不(bu)必 更(geng)換潤(run)(run)滑(hua)脂(zhi).非密封軸(zhou)(zhou)承(cheng)(cheng)應(ying)定期更(geng)換清潔的潤(run)(run)滑(hua)脂(zhi).潤(run)(run)滑(hua)脂(zhi)加(jia)注要適 量,一般(ban)填(tian)充軸(zhou)(zhou)承(cheng)(cheng)內外圈(quan)之間空(kong)腔的1/3-1/2,有注脂(zhi)裝(zhuang)置的電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji),用潤(run)(run)滑(hua)槍加(jia)注3-4下即可,加(jia)注前打開軸(zhou)(zhou)承(cheng)(cheng)蓋底(di)部(bu)的排放(fang)孔(kong)或(huo)(huo) 蓋板,電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)運行20分鐘后再(zai)堵上(shang)(shang)(shang)排放(fang)孔(kong)或(huo)(huo)上(shang)(shang)(shang)好蓋板,拆裝(zhuang)排放(fang)孔(kong)螺 塞(sai)或(huo)(huo)蓋板時應(ying)斷(duan)電(dian)(dian)(dian)停機(ji)(ji)(ji)
七、運輸及(ji)貯存
在運輸過程中電(dian)動機應(ying)不受潮(chao),軸伸不磕碰,零(ling)件不損壞等(deng).貯 存場(chang)所應(ying)保持清(qing)潔、干燥、通風,無腐蝕性氣體,避免環境溫(wen)度的急劇變化等(deng)。