蜗牛视频

蜗牛视频

祥力電機的啟動與運行

2019-02-06 00:00:00 8

起動 
1、合閘后(hou)電動機(ji)應立即起(qi)動起(qi)來,達到正常轉(zhuan)速(su)并平(ping)穩運行,否 則皮立即切斷電源(yuan),檢查并排除故(gu)障。 
2、起動后(hou)注意觀察(cha)電(dian)(dian)動機(ji)傳動裝置、負載機(ji)械、電(dian)(dian)壓(ya)表和(he)電(dian)(dian)流表, 若有異常現象應(ying)立即停機(ji)。 
3、電動機空載連續(xu)起動一般(ban)不(bu)超過4次(ci),運(yun)行(xing)至熱態停(ting)機后(hou)連續(xu) 起動不(bu)得超過2次(ci),否則容易燒壞(huai)電動機。 
4、根據電(dian)網容(rong)量(liang)、負載大(da)小和(he)電(dian)動(dong)(dong)機(ji)功率(lv)等,合理選擇起(qi)動(dong)(dong)方(fang)式, 較大(da)功率(lv)電(dian)動(dong)(dong)機(ji)宜采采用一(yi)三角(jiao)法或降壓方(fang)式起(qi)動(dong)(dong)。 
運(yun)行 
1、電(dian)(dian)源電(dian)(dian)壓與(yu)額定(ding)電(dian)(dian)壓的偏差不(bu)超(chao)過±5%,三相(xiang)電(dian)(dian)壓不(bu)平衡不(bu)超(chao)過1.5%。 
2、電(dian)動機運行電(dian)流不(bu)得(de)超過銘牌上的額定電(dian)流,三相電(dian)流不(bu)平衡(heng)量不(bu)超過80%,否則會造成電(dian)動機發熱甚(shen)至燒(shao)毀。 
3、用溫度計測量電動機(ji)機(ji)殼表面溫度應不超過80℃,軸承的溫度應不超過95℃ 
4、電動機應經常保持清(qing)潔、干燥、通(tong)風(feng)(feng)良(liang)好(hao),進風(feng)(feng)口與出風(feng)(feng)口必霜保持暢(chang)通(tong)。 
5、運行中電(dian)動(dong)機(ji)出(chu)現冒煙、劇(ju)烈振動(dong)、異常聲音、特殊氣(qi)味(wei)、轉(zhuan)速(su)明(ming)顯下降;負載設備出(chu)現故障;發(fa)生(sheng)人身觸電(dian)時(shi)應立即斷電(dian)停(ting)機(ji)。