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龍潭電機使用的必備基礎知識都有哪些?

發(fa)表(biao)時間:2024-05-16 訪問量(liang):26343

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。龍潭汽保設備配件

2、用500V兆歐表(biao)測(ce)量電(dian)(dian)動(dong)機繞組對外殼的(de)絕緣電(dian)(dian)阻,絕緣電(dian)(dian)阻 應大于0.5MΩ。

二、安裝

1、電(dian)動機—般安裝在室內清潔、干燥的場所,周(zhou)圍必(bi)須通風良(liang)好,環境空氣更高溫度不(bu)超過40℃,更低溫度不(bu)低于-15℃,并應防止(zhi)強(qiang)烈的熱(re)輻射。

2、電(dian)動機控制電(dian)器(qi)應(ying)有缺(que)相保(bao)護和過載熱(re)保(bao)護裝置,YA系(xi)列增安型電(dian)動機須根據銘(ming)牌tE時(shi)間及起(qi)動電(dian)流比IA/IN選擇(ze)合(he)適(shi)的過載熱(re)保(bao)護裝置。

3、按接(jie)線(xian)圖(tu)接(jie)電源線(xian)接(jie)線(xian)頭連接(jie)要(yao)緊(jin)固,帶引(yin)出電纜、電線(xian)的電動機,可直接(jie)和電源線(xian)連接(jie),接(jie)頭處要(yao)絕(jue)緣密封。

4、當電源線(xian)(xian),相序和(he)電動(dong)粗接線(xian)(xian)頭標志對應(ying)連接時,從軸伸端(duan)看電動(dong)機順時針旋轉(zhuan)。需(xu)要改變轉(zhuan)向時,改變兩根電源線(xian)(xian)接線(xian)(xian)的位置即可。

5、YD系列等變級多速(su)(su)異步電(dian)(dian)(dian)動(dong)機(ji)是利用(yong)換接(jie)引出(chu)線(xian)的(de)(de)方法來控(kong)制轉(zhuan)(zhuan)速(su)(su)變化的(de)(de),為保證多速(su)(su)電(dian)(dian)(dian)動(dong)機(ji)運行的(de)(de)可靠(kao)性(xing),設計和操作控(kong)制裝(zhuang)置時應注(zhu)意(yi),在高速(su)(su)切(qie)換為低速(su)(su)時,必須在切(qie)斷(duan)電(dian)(dian)(dian)源的(de)(de)同時斷(duan)開2Y接(jie)線(xian)的(de)(de)中(zhong)(zhong)性(xing)點(dian),以(yi)免(mian)在低速(su)(su)繞(rao)組(zu)接(jie)通(tong)時引起電(dian)(dian)(dian)源短路.在高速(su)(su)切(qie)換為低速(su)(su)的(de)(de)過(guo)程中(zhong)(zhong),必續待電(dian)(dian)(dian)動(dong)機(ji)停轉(zhuan)(zhuan)后(hou)才能接(jie)通(tong)低速(su)(su)繞(rao)組(zu)的(de)(de)電(dian)(dian)(dian)源,以(yi)減少對電(dian)(dian)(dian)動(dong)機(ji)及負載的(de)(de)沖擊.轉(zhuan)(zhuan)速(su)(su)切(qie)換要注(zhu)意(yi)電(dian)(dian)(dian)動(dong)機(ji)的(de)(de)轉(zhuan)(zhuan)向。

6、電(dian)動(dong)(dong)(dong)機(ji)(ji)可(ke)以采(cai)有聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi),齒輪、皮(pi)帶與(yu)(yu)負載(zai)機(ji)(ji)械聯(lian)接,4kw以上的(de)2極(ji)電(dian)動(dong)(dong)(dong)機(ji)(ji)30kw以上的(de)4極(ji)電(dian)動(dong)(dong)(dong)機(ji)(ji)不宜用(yong)(yong)皮(pi)帶傳(chuan)動(dong)(dong)(dong),雙軸(zhou)(zhou)(zhou)(zhou)伸(shen)(shen)電(dian)動(dong)(dong)(dong)的(de)第二軸(zhou)(zhou)(zhou)(zhou)伸(shen)(shen)只能(neng)用(yong)(yong)聯(lian)軸(zhou)(zhou)(zhou)(zhou)囂傳(chuan)動(dong)(dong)(dong)。聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)、皮(pi)帶輪軸(zhou)(zhou)(zhou)(zhou)孔與(yu)(yu)電(dian)動(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)的(de)配合松緊(jin)應(ying)(ying)合適,安裝(zhuang)時(shi)嚴(yan)禁用(yong)(yong)重錘敲(qiao)擊(ji)。 采(cai)用(yong)(yong)聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)傳(chuan)動(dong)(dong)(dong)時(shi),電(dian)動(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)中(zhong)心線(xian)(xian)與(yu)(yu)負載(zai)機(ji)(ji)械軸(zhou)(zhou)(zhou)(zhou)中(zhong)心線(xian)(xian)應(ying)(ying)重合,聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)軸(zhou)(zhou)(zhou)(zhou)向保留1~3mm間隙。 采(cai)用(yong)(yong)皮(pi)帶傳(chuan)達室動(dong)(dong)(dong)時(shi),電(dian)動(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)(zhou)(zhou)中(zhong)心線(xian)(xian)應(ying)(ying)與(yu)(yu)負載(zai)機(ji)(ji)械軸(zhou)(zhou)(zhou)(zhou)中(zhong)心線(xian)(xian)平行,皮(pi)帶中(zhong)心線(xian)(xian)與(yu)(yu)軸(zhou)(zhou)(zhou)(zhou)中(zhong)心線(xian)(xian)相互垂直。

三、接地

電(dian)動機(ji)必須可(ke)靠接(jie)(jie)地(di),接(jie)(jie)地(di)方(fang)式(shi)、接(jie)(jie)地(di)電(dian)阻(zu)(zu)等(deng)應符合《工(gong)業與(yu)民用 電(dian)力(li)裝置的接(jie)(jie)地(di)設計(ji)(ji)規(gui)范(fan)》《工(gong)廠電(dian)力(li)設計(ji)(ji)技術規(gui)范(fan)》等(deng)電(dian)氣安(an)全(quan)管理 的規(gui)定,接(jie)(jie)地(di)電(dian)阻(zu)(zu)小于4Ω。

四、起動

1、合閘(zha)后(hou)電動(dong)機應立即起(qi)動(dong)起(qi)來,達到正常轉速(su)并平穩運行,否 則皮(pi)立即切(qie)斷電源,檢(jian)查(cha)并排(pai)除(chu)故障(zhang)。

2、起動后注意觀(guan)察電(dian)(dian)動機傳動裝置、負載機械、電(dian)(dian)壓表和電(dian)(dian)流表, 若有異(yi)常現象應(ying)立即停機。

3、電動機(ji)空載(zai)連續起動一般不超(chao)過(guo)4次,運行(xing)至熱態停機(ji)后連續 起動不得超(chao)過(guo)2次,否(fou)則容易(yi)燒壞電動機(ji)。

4、根據電網容量、負載大小和電動(dong)(dong)機功(gong)率等,合理(li)選擇(ze)起動(dong)(dong)方式, 較大功(gong)率電動(dong)(dong)機宜采采用一三角法(fa)或(huo)降(jiang)壓(ya)方式起動(dong)(dong)。

五、運行

1、電源電壓(ya)與(yu)額(e)定電壓(ya)的偏差不超過±5%,三相電壓(ya)不平(ping)衡不超過1.5%。

2、電(dian)(dian)(dian)動(dong)機運(yun)行電(dian)(dian)(dian)流不得(de)超過銘牌上(shang)的(de)額定電(dian)(dian)(dian)流,三相電(dian)(dian)(dian)流不平衡量不超過80%,否(fou)則會造成電(dian)(dian)(dian)動(dong)機發熱甚至(zhi)燒毀。

3、用溫度計(ji)測量電動(dong)機(ji)機(ji)殼表面溫度應不(bu)(bu)超過(guo)80℃,軸(zhou)承(cheng)的溫度應不(bu)(bu)超過(guo)95℃。

4、電(dian)(dian)動(dong)(dong)機應經常(chang)保持清潔、干燥、通風良好,進風口(kou)與(yu)出(chu)風口(kou)必(bi)霜保持暢通。5、運行中電(dian)(dian)動(dong)(dong)機出(chu)現冒煙、劇烈(lie)振(zhen)動(dong)(dong)、異常(chang)聲音(yin)、特殊(shu)氣味、轉速明(ming)顯下降;負(fu)載設備出(chu)現故障;發生人身觸電(dian)(dian)時應立(li)即斷(duan)電(dian)(dian)停機。

 六、軸承潤滑

1、電動機軸承潤滑(hua)(hua)(hua)應良(liang)好(hao),一般運行(xing)3000-5000小(xiao)時后,應停機保養補充或更換潤滑(hua)(hua)(hua)脂,潤滑(hua)(hua)(hua)脂牌(pai)號為ZL--3鋰基潤滑(hua)(hua)(hua)脂。

2、存放或停(ting)用(yong)時(shi)間超過兩(liang)年的(de)電(dian)動(dong)機使用(yong)前應對軸(zhou)承的(de)潤(run)滑情況(kuang)進行(xing)檢查,必(bi)要時(shi)補充或更換潤(run)滑脂。

3、中心高132及(ji)以(yi)下機(ji)座號(hao)電(dian)動機(ji)用(yong)(yong)(yong)密(mi)(mi)封(feng)軸(zhou)承(cheng),中心高160以(yi) 上(shang)機(ji)座號(hao)電(dian)動機(ji)一般用(yong)(yong)(yong)非(fei)密(mi)(mi)封(feng)軸(zhou)承(cheng),電(dian)動機(ji)使用(yong)(yong)(yong)過程中密(mi)(mi)封(feng)軸(zhou)承(cheng)不必 更換潤(run)滑脂.非(fei)密(mi)(mi)封(feng)軸(zhou)承(cheng)應定(ding)期(qi)更換清(qing)潔的(de)潤(run)滑脂.潤(run)滑脂加(jia)(jia)注(zhu)要適 量,一般填充(chong)軸(zhou)承(cheng)內外圈之間空(kong)腔的(de)1/3-1/2,有(you)注(zhu)脂裝(zhuang)置的(de)電(dian)動機(ji),用(yong)(yong)(yong)潤(run)滑槍加(jia)(jia)注(zhu)3-4下即(ji)可(ke),加(jia)(jia)注(zhu)前打開(kai)軸(zhou)承(cheng)蓋底部的(de)排放(fang)孔(kong)或 蓋板,電(dian)動機(ji)運行20分(fen)鐘后再堵上(shang)排放(fang)孔(kong)或上(shang)好蓋板,拆裝(zhuang)排放(fang)孔(kong)螺 塞(sai)或蓋板時應斷電(dian)停機(ji)

 七、運輸及貯存

在運輸過程中電動(dong)機(ji)應(ying)不(bu)受潮,軸(zhou)伸不(bu)磕碰,零(ling)件(jian)不(bu)損壞(huai)等(deng).貯 存場所應(ying)保持清潔(jie)、干燥、通風,無腐蝕性(xing)氣體,避免(mian)環境溫(wen)度的急劇變化等(deng)。

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