三(san)相(xiang)異(yi)步電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)分(fen)類：按(an)(an)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)結構(gou)尺寸(cun)分(fen)類：大(da)型電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)：電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)(ji)(ji)座(zuo)(zuo)(zuo)(zuo)(zuo)中(zhong)心高(gao)度(du)大(da)于(yu)630mm，或者16號機(ji)(ji)(ji)(ji)(ji)(ji)座(zuo)(zuo)(zuo)(zuo)(zuo)及以上.或定子(zi)鐵芯外(wai)徑大(da)于(yu)990mm。中(zhong)型電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)：電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)(ji)(ji)座(zuo)(zuo)(zuo)(zuo)(zuo)中(zhong)心高(gao)度(du)在(zai)355一(yi)630mm之間.或者11-15號機(ji)(ji)(ji)(ji)(ji)(ji)座(zuo)(zuo)(zuo)(zuo)(zuo).或定子(zi)鐵芯外(wai)徑在(zai)560~990mm之間。小型電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)：電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)(ji)(ji)座(zuo)(zuo)(zuo)(zuo)(zuo)中(zhong)心高(gao)度(du)在(zai)80-315mm.或者10號及以下機(ji)(ji)(ji)(ji)(ji)(ji)座(zuo)(zuo)(zuo)(zuo)(zuo)，或定子(zi)鐵芯外(wai)徑在(zai)125-560mm之間。按(an)(an)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)轉速(su)分(fen)類：恒轉速(su)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；調速(su)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)；變(bian)速(su)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；三(san)相(xiang)異(yi)步電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)按(an)(an)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)防護形(xing)式分(fen)類：開啟式電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；防護式電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；封閉式電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；防水式電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；水密式電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；潛水式電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)；隔爆(bao)式電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)。三(san)相(xiang)異(yi)步電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)的維(wei)護保養包括(kuo)定期檢查(cha)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)的電(dian)(dian)(dian)(dian)(dian)(dian)氣性(xing)能、機(ji)(ji)(ji)(ji)(ji)(ji)械性(xing)能和(he)潤滑情況等(deng)。杭州三(san)相(xiang)異(yi)步電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)(ji)品牌

液力(li)(li)耦(ou)合器是(shi)(shi)一(yi)種液力(li)(li)傳(chuan)動裝置，一(yi)般由(you)泵輪(lun)和渦(wo)輪(lun)組成，它們統稱工(gong)作(zuo)輪(lun)，放在密封殼(ke)體(ti)中。殼(ke)中充入(ru)(ru)一(yi)定(ding)量的(de)(de)工(gong)作(zuo)液體(ti)，當泵輪(lun)在原動機(ji)帶動下旋(xuan)轉(zhuan)時，處于其中的(de)(de)液體(ti)受葉片推(tui)動而(er)旋(xuan)轉(zhuan)，在離(li)心力(li)(li)作(zuo)用下沿著泵輪(lun)外環進入(ru)(ru)渦(wo)輪(lun)時，就在同一(yi)轉(zhuan)向上給渦(wo)輪(lun)葉片以(yi)(yi)推(tui)力(li)(li)，使(shi)其帶動生(sheng)產機(ji)械(xie)運轉(zhuan)。液力(li)(li)耦(ou)合器的(de)(de)動力(li)(li)轉(zhuan)輸能力(li)(li)與殼(ke)內相對(dui)充液量的(de)(de)大(da)小是(shi)(shi)一(yi)致的(de)(de)。在工(gong)作(zuo)過程中，改變充液率(lv)(lv)就可(ke)(ke)以(yi)(yi)改變耦(ou)合器的(de)(de)渦(wo)輪(lun)轉(zhuan)速，作(zuo)到無級調(diao)(diao)(diao)速，其特點(dian)為：1、功(gong)率(lv)(lv)適應范圍大(da)，可(ke)(ke)滿(man)足從(cong)幾十千(qian)瓦至數千(qian)千(qian)瓦不同功(gong)率(lv)(lv)的(de)(de)需要；2、結構簡單，工(gong)作(zuo)可(ke)(ke)靠，使(shi)用及維(wei)修方(fang)便，且造價低(di)；3、尺寸小，能容大(da)；4、控制調(diao)(diao)(diao)節方(fang)便，容易實現自動控制。該(gai)方(fang)法(fa)適用于風機(ji)、水泵的(de)(de)調(diao)(diao)(diao)速。合肥(fei)三相異(yi)步(bu)電(dian)(dian)動機(ji)型號參數三相異(yi)步(bu)電(dian)(dian)動機(ji)的(de)(de)電(dian)(dian)氣(qi)性能包括電(dian)(dian)壓、電(dian)(dian)流、功(gong)率(lv)(lv)因數、效率(lv)(lv)等(deng)指(zhi)標。

該方(fang)法適合于(yu)風機(ji)(ji)、水泵(beng)及軋鋼機(ji)(ji)、礦井提(ti)升機(ji)(ji)、擠壓機(ji)(ji)上使(shi)用。繞線式異(yi)步(bu)電動(dong)機(ji)(ji)轉(zhuan)子串入(ru)附(fu)加(jia)電阻(zu)，使(shi)電動(dong)機(ji)(ji)的(de)轉(zhuan)差率(lv)加(jia)大(da)，電動(dong)機(ji)(ji)在較低的(de)轉(zhuan)速(su)(su)下(xia)運行。串入(ru)的(de)電阻(zu)越大(da)，電動(dong)機(ji)(ji)的(de)轉(zhuan)速(su)(su)越低。此方(fang)法設備簡單，控(kong)制(zhi)方(fang)便(bian)，但轉(zhuan)差功率(lv)以發熱的(de)形式消(xiao)耗在電阻(zu)上。屬(shu)有(you)級調速(su)(su)，機(ji)(ji)械(xie)(xie)特(te)(te)性(xing)較軟。當改變(bian)電動(dong)機(ji)(ji)的(de)定子電壓時，可以得到(dao)一組不同的(de)機(ji)(ji)械(xie)(xie)特(te)(te)性(xing)曲(qu)線，從而獲(huo)得不同轉(zhuan)速(su)(su)。由(you)于(yu)電動(dong)機(ji)(ji)的(de)轉(zhuan)矩與電壓平方(fang)成(cheng)正(zheng)比，因(yin)此較大(da)轉(zhuan)矩下(xia)降(jiang)很多(duo)，其調速(su)(su)范(fan)圍較小，使(shi)一般籠(long)型電動(dong)機(ji)(ji)難以應用。

三(san)相異步電動(dong)機短(duan)(duan)路(lu)(lu)(lu)處理方(fang)法：⑴短(duan)(duan)路(lu)(lu)(lu)點在(zai)端(duan)部(bu)。可(ke)用絕緣材料(liao)將(jiang)短(duan)(duan)路(lu)(lu)(lu)點隔開，也(ye)(ye)可(ke)重包絕緣線，再(zai)上漆重烘(hong)干(gan)。⑵短(duan)(duan)路(lu)(lu)(lu)在(zai)線槽(cao)內(nei)。將(jiang)其(qi)軟化后(hou)，找出短(duan)(duan)路(lu)(lu)(lu)點修復，重新放入線槽(cao)后(hou)，再(zai)上漆烘(hong)干(gan)。⑶對短(duan)(duan)路(lu)(lu)(lu)線匝少(shao)于(yu)1/12的(de)(de)每相繞(rao)組(zu)(zu)，串聯匝數時切斷(duan)(duan)全部(bu)短(duan)(duan)路(lu)(lu)(lu)線，將(jiang)導(dao)(dao)通部(bu)分連接，形成閉合回路(lu)(lu)(lu)，供(gong)應急使用。⑷繞(rao)組(zu)(zu)短(duan)(duan)路(lu)(lu)(lu)點匝數超過1/12時，要全部(bu)拆除重繞(rao)。繞(rao)組(zu)(zu)斷(duan)(duan)路(lu)(lu)(lu)由(you)于(yu)焊(han)接不良或(huo)(huo)使用腐蝕性(xing)焊(han)劑，焊(han)接后(hou)又未去除干(gan)凈(jing)，就可(ke)能(neng)造成壺焊(han)或(huo)(huo)松(song)脫(tuo)；受機械(xie)應力或(huo)(huo)碰(peng)撞時線圈短(duan)(duan)路(lu)(lu)(lu)、短(duan)(duan)路(lu)(lu)(lu)與接地故障也(ye)(ye)可(ke)使導(dao)(dao)線燒毀，在(zai)并燒的(de)(de)幾根(gen)導(dao)(dao)線中有一(yi)(yi)根(gen)或(huo)(huo)幾根(gen)導(dao)(dao)線短(duan)(duan)路(lu)(lu)(lu)時，另幾根(gen)導(dao)(dao)線由(you)于(yu)電流的(de)(de)增(zeng)加而(er)溫度上升(sheng)，引起(qi)繞(rao)組(zu)(zu)發熱而(er)斷(duan)(duan)路(lu)(lu)(lu)。一(yi)(yi)般分為一(yi)(yi)相繞(rao)組(zu)(zu)端(duan)部(bu)斷(duan)(duan)線、匝間短(duan)(duan)路(lu)(lu)(lu)、并聯支路(lu)(lu)(lu)處斷(duan)(duan)路(lu)(lu)(lu)、多根(gen)導(dao)(dao)線并燒中一(yi)(yi)根(gen)斷(duan)(duan)路(lu)(lu)(lu)、轉子斷(duan)(duan)籠。三(san)相異步電動(dong)機的(de)(de)啟動(dong)方(fang)式有直接啟動(dong)、星三(san)角(jiao)啟動(dong)、自(zi)耦啟動(dong)等。

三(san)相異步電(dian)(dian)動機(ji)(ji)選(xuan)(xuan)(xuan)型(xing)要點有哪些(xie)呢(ni)？額定轉(zhuan)(zhuan)速(su)(su)：根據(ju)負載對轉(zhuan)(zhuan)速(su)(su)的(de)(de)要求(qiu)，選(xuan)(xuan)(xuan)擇(ze)合(he)適的(de)(de)額定轉(zhuan)(zhuan)速(su)(su)。如(ru)果負載對轉(zhuan)(zhuan)速(su)(su)要求(qiu)不高，可以選(xuan)(xuan)(xuan)擇(ze)低轉(zhuan)(zhuan)速(su)(su)電(dian)(dian)機(ji)(ji)，節能效果更好。額定電(dian)(dian)壓(ya)：選(xuan)(xuan)(xuan)擇(ze)與供電(dian)(dian)電(dian)(dian)網相匹配的(de)(de)額定電(dian)(dian)壓(ya)的(de)(de)電(dian)(dian)機(ji)(ji)，以保證電(dian)(dian)機(ji)(ji)正常(chang)運(yun)行。極數(shu)：電(dian)(dian)機(ji)(ji)的(de)(de)極數(shu)決定了電(dian)(dian)機(ji)(ji)的(de)(de)轉(zhuan)(zhuan)速(su)(su)，根據(ju)負載的(de)(de)轉(zhuan)(zhuan)速(su)(su)要求(qiu)選(xuan)(xuan)(xuan)擇(ze)合(he)適的(de)(de)極數(shu)。轉(zhuan)(zhuan)矩：根據(ju)負載的(de)(de)轉(zhuan)(zhuan)矩要求(qiu)選(xuan)(xuan)(xuan)擇(ze)合(he)適的(de)(de)電(dian)(dian)機(ji)(ji)，電(dian)(dian)機(ji)(ji)的(de)(de)額定轉(zhuan)(zhuan)矩應(ying)略大于負載轉(zhuan)(zhuan)矩，以保證電(dian)(dian)機(ji)(ji)正常(chang)運(yun)行。環(huan)境溫(wen)度：考慮電(dian)(dian)機(ji)(ji)工作的(de)(de)環(huan)境溫(wen)度和濕度，選(xuan)(xuan)(xuan)擇(ze)合(he)適的(de)(de)電(dian)(dian)機(ji)(ji)防護(hu)等(deng)級和絕(jue)緣等(deng)級。三(san)相異步電(dian)(dian)動機(ji)(ji)拖動的(de)(de)起動、制動、反(fan)向與調(diao)速(su)(su)等(deng)控(kong)制簡便迅速(su)(su)，調(diao)速(su)(su)性能良好。四(si)級三(san)相異步電(dian)(dian)動機(ji)(ji)銷售

三相(xiang)異步電動機的(de)電機轉子(zi)通常(chang)采用鋁(lv)合金或銅導體制(zhi)(zhi)成(cheng)，需要注(zhu)意輕(qing)量化和成(cheng)本控制(zhi)(zhi)。杭州三相(xiang)異步電動機品牌

鏈(lian)式(shi)繞(rao)(rao)組(zu)(zu)(zu)是由具有(you)(you)相(xiang)(xiang)同(tong)(tong)(tong)(tong)形狀(zhuang)和寬度的(de)單(dan)層(ceng)線圈(quan)元(yuan)件(jian)所(suo)組(zu)(zu)(zu)成，因其(qi)繞(rao)(rao)組(zu)(zu)(zu)端(duan)部各個線圈(quan)像套起的(de)鏈(lian)環一樣而得名。單(dan)層(ceng)鏈(lian)式(shi)繞(rao)(rao)組(zu)(zu)(zu)應特(te)別(bie)注意的(de)是其(qi)線圈(quan)節距必須為(wei)奇(qi)(qi)數(shu)(shu)，否則(ze)該繞(rao)(rao)組(zu)(zu)(zu)將無(wu)法排列布(bu)置(zhi)。交(jiao)叉鏈(lian)式(shi)繞(rao)(rao)組(zu)(zu)(zu)當(dang)每極(ji)(ji)(ji)(ji)每相(xiang)(xiang)槽數(shu)(shu)9為(wei)大于2的(de)奇(qi)(qi)數(shu)(shu)時(shi)(shi)鏈(lian)式(shi)繞(rao)(rao)組(zu)(zu)(zu)將無(wu)法排列布(bu)置(zhi)，此時(shi)(shi)就需(xu)要采用(yong)具有(you)(you)單(dan)、雙線圈(quan)的(de)交(jiao)叉式(shi)繞(rao)(rao)組(zu)(zu)(zu)。同(tong)(tong)(tong)(tong)心(xin)(xin)(xin)式(shi)繞(rao)(rao)組(zu)(zu)(zu)在同(tong)(tong)(tong)(tong)一極(ji)(ji)(ji)(ji)相(xiang)(xiang)組(zu)(zu)(zu)內的(de)所(suo)有(you)(you)線圈(quan)圍抱同(tong)(tong)(tong)(tong)一圓心(xin)(xin)(xin)。當(dang)每級(ji)每相(xiang)(xiang)槽數(shu)(shu)Q為(wei)大于2的(de)偶數(shu)(shu)時(shi)(shi)則(ze)可采取同(tong)(tong)(tong)(tong)心(xin)(xin)(xin)式(shi)繞(rao)(rao)組(zu)(zu)(zu)的(de)形式(shi)。單(dan)層(ceng)同(tong)(tong)(tong)(tong)心(xin)(xin)(xin)繞(rao)(rao)組(zu)(zu)(zu)和交(jiao)叉同(tong)(tong)(tong)(tong)心(xin)(xin)(xin)式(shi)繞(rao)(rao)組(zu)(zu)(zu)的(de)優點為(wei)繞(rao)(rao)組(zu)(zu)(zu)的(de)繞(rao)(rao)線、嵌(qian)線較(jiao)為(wei)簡單(dan)，缺點則(ze)為(wei)線圈(quan)端(duan)部過(guo)長耗用(yong)導線過(guo)多。現除偶有(you)(you)用(yong)在小容量2極(ji)(ji)(ji)(ji)、4極(ji)(ji)(ji)(ji)電(dian)動機中以外，如今已很少采用(yong)這種(zhong)繞(rao)(rao)組(zu)(zu)(zu)形式(shi)。杭州三相(xiang)(xiang)異(yi)步電(dian)動機品牌

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