丹東低噪聲高壓電機廠家
是(shi)鼠(shu)籠(long)型轉子水(shui)冷卻(que)的(de)三相異步電動(dong)機(ji),該型號(hao)電機(ji)制作工藝(yi)技(ji)術先進,具有噪(zao)聲低、振(zhen)動(dong)小(xiao)、運行可靠、安裝維護方(fang)便等(deng)優(you)點。該系列電動(dong)機(ji)的(de)功(gong)率等(deng)級、安裝尺寸、電氣性能均符合IEC標準的(de)有關規定(ding)。的(de)防護等(deng)級為(wei)IP44或IP54,冷卻(que)方(fang)法為(wei)ICW81A。如(ru)通風(feng)機(ji)、壓(ya)縮(suo)機(ji)、水(shui)泵、破碎(sui)機(ji)、切削機(ji)床(chuang)及(ji)其它設備,并可供煤礦、機(ji)械工業(ye)、發電廠及(ji)各種工礦企(qi)業(ye)作原動(dong)機(ji)之(zhi)用。
根據電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)按(an)結構及(ji)工(gong)作(zuo)原理(li)(li)的(de)不同,可分(fen)(fen)為(wei)(wei)(wei)(wei)直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji),異(yi)步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)和(he)同步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)。同步(bu)(bu)(bu)(bu)還(huan)可分(fen)(fen)為(wei)(wei)(wei)(wei)永磁(ci)同步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)、磁(ci)阻同步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)和(he)磁(ci)滯同步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)。異(yi)步(bu)(bu)(bu)(bu)可分(fen)(fen)為(wei)(wei)(wei)(wei)感應電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)和(he)交流(liu)(liu)換(huan)(huan)向器電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)。感應電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)又分(fen)(fen)為(wei)(wei)(wei)(wei)三相異(yi)步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)、單相異(yi)步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)和(he)罩(zhao)極異(yi)步(bu)(bu)(bu)(bu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)等。交流(liu)(liu)換(huan)(huan)向器電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)又分(fen)(fen)為(wei)(wei)(wei)(wei)單相串(chuan)勵(li)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)、交直(zhi)流(liu)(liu)兩(liang)用電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)和(he)推斥(chi)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)。直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)按(an)結構及(ji)工(gong)作(zuo)原理(li)(li)可分(fen)(fen)為(wei)(wei)(wei)(wei)無刷直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)和(he)有(you)刷直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)(ji)(ji)(ji)。
主(zhu)要用于(yu)(yu)各(ge)種型式(shi)的(de)(de)防(fang)爆(bao)(bao)起重(zhong)機(ji)械的(de)(de)電力拖動(dong)(dong),具有較大(da)的(de)(de)過載能力和(he)(he)較高(gao)的(de)(de)機(ji)械強度,具有節能調(diao)速的(de)(de)功能。防(fang)爆(bao)(bao)標志分別(bie)為(wei)ExdIIBT4和(he)(he)ExdIICT4兩(liang)種。主(zhu)要用于(yu)(yu)各(ge)種型式(shi)的(de)(de)防(fang)爆(bao)(bao)起重(zhong)機(ji)械的(de)(de)電力驅動(dong)(dong)。具有較大(da)的(de)(de)過載能力和(he)(he)較高(gao)的(de)(de)機(ji)械強度,因此(ci)它特別(bie)適用于(yu)(yu)那些(xie)短時或斷續運轉、頻(pin)繁起動(dong)(dong)、制動(dong)(dong)的(de)(de)設備。適用于(yu)(yu)傳爆(bao)(bao)能力不高(gao)于(yu)(yu)IIB或IIC級,引爆(bao)(bao)溫度組別(bie)為(wei)T1-T4組的(de)(de)可燃(ran)性氣(qi)(qi)體(ti)或蒸氣(qi)(qi)與空氣(qi)(qi)形成的(de)(de)爆(bao)(bao)炸性混合物(wu)的(de)(de)場所。
用手背探模電動機周圍的溫度。在軸承狀況較好情況下一般兩端的溫度都會低于中間繞組段的溫度。如果兩端軸承處溫度較高,就要結合所測的軸承聲音情況檢查軸承。如果高壓電機總體溫度偏高,就要結合工作電流檢查電動機的負載、裝備和通風等情況進行相應處理。根據電動機的所用絕緣材料的絕緣等級,可釉確定低噪聲高壓電機運行時繞組絕緣能(neng)長期(qi)使用的極(ji)限溫(wen)度(du),或者說(shuo)電動(dong)機的允許溫(wen)升(電動(dong)機的實際溫(wen)度(du)減去(qu)環境溫(wen)度(du))。
的(de)定子鐵心槽里(li)嵌著(zhu)三(san)(san)相(xiang)定子繞組,它(ta)們的(de)線徑、匝數相(xiang)同,只是(shi)在空間位(wei)置上(shang)彼此(ci)相(xiang)差120電(dian)角度。如(ru)果在三(san)(san)相(xiang)繞組里(li),電(dian)角度的(de)三(san)(san)相(xiang)正弦交變(bian)電(dian)流,則將(jiang)產(chan)(chan)(chan)生(sheng)一(yi)個合成(cheng)的(de)旋(xuan)轉磁場,這旋(xuan)轉磁場的(de)轉速,稱為(wei)同步(bu)轉速,轉子槽內(nei)的(de)導條將(jiang)切割磁力(li)線,產(chan)(chan)(chan)生(sheng)感應電(dian)勢。這也就(jiu)是(shi)轉子導條內(nei)感應電(dian)流的(de)方(fang)向。于是(shi)轉子按照F也就(jiu)是(shi)旋(xuan)轉磁場的(de)方(fang)向轉動起(qi)來,這就(jiu)是(shi)三(san)(san)相(xiang)異步(bu)電(dian)動機能夠產(chan)(chan)(chan)生(sheng)轉矩,驅動生(sheng)產(chan)(chan)(chan)機械的(de)道(dao)理。
除隔爆結構外,電(dian)(dian)動(dong)(dong)機(ji)的(de)工作原理是(shi)與普通的(de)異步電(dian)(dian)動(dong)(dong)機(ji)完全(quan)相同。以(yi)(yi)三(san)(san)(san)相異步電(dian)(dian)動(dong)(dong)機(ji)為例,當定子(zi)繞(rao)組施以(yi)(yi)對(dui)稱的(de)三(san)(san)(san)相交(jiao)流電(dian)(dian)壓后,定子(zi)繞(rao)組中(zhong)便有(you)三(san)(san)(san)相對(dui)稱電(dian)(dian)流通過,它們聯合產生一(yi)個定子(zi)旋(xuan)轉(zhuan)磁(ci)場,以(yi)(yi)轉(zhuan)速(su)n1沿圓周(zhou)方(fang)向(xiang)旋(xuan)轉(zhuan),其(qi)磁(ci)力線切(qie)割轉(zhuan)子(zi)導(dao)體而感應電(dian)(dian)勢,在(zai)該電(dian)(dian)勢的(de)作用下,轉(zhuan)子(zi)導(dao)體便有(you)電(dian)(dian)流流過,電(dian)(dian)流的(de)有(you)功分量與電(dian)(dian)勢同相位。該系列電(dian)(dian)動(dong)(dong)機(ji)采用國際流行(xing)的(de)緊(jin)湊(cou)型結構,機(ji)座、端蓋(gai)的(de)內外表面均分布有(you)散(san)熱筋,體積小巧,外形美觀。