東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)電(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)防爆(bao)電(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)高壓電(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)變頻(pin)電(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)剎車電(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)減(jian)速(su)(su)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)冷卻塔電(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)負壓式風(feng)機(ji)(ji)(ji)電(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)電(dian)(dian)機(ji)(ji)(ji)服務中(zhong)心(xin)(xin)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)電(dian)(dian)機(ji)(ji)(ji)維修中(zhong)心(xin)(xin)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)電(dian)(dian)機(ji)(ji)(ji)配件(jian)銷售中(zhong)心(xin)(xin)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)高壓電(dian)(dian)機(ji)(ji)(ji)軸瓦，RENK軸瓦，摩(mo)鐸利減(jian)速(su)(su)機(ji)(ji)(ji)，MOTOVARIO減(jian)速(su)(su)機(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)負壓式風(feng)機(ji)(ji)(ji)電(dian)(dian)機(ji)(ji)(ji)維修中(zhong)心(xin)(xin)，東(dong)(dong)(dong)(dong)(dong)(dong)(dong)元(yuan)(yuan)(yuan)(yuan)四大系(xi)列(lie)減(jian)速(su)(su)機(ji)(ji)(ji)，正名減(jian)速(su)(su)機(ji)(ji)(ji) 摩(mo)鐸利減(jian)速(su)(su)機(ji)(ji)(ji)現貨(huo)

5、與原來采用(yong)的調速方式(shi)有關。例(li)如，原來用(yong)滑差電動(dong)機調速，因調率(lv)(lv)低(di)(di)，尤其在(zai)(zai)中、低(di)(di)速時，效率(lv)(lv)只(zhi)有50％以下，很不經濟，改為變頻器調速后，把這部分電能節省下來了(le)。目前輕工、紡織、造紙、印染、塑(su)料(liao)、橡膠等行業中，大多還(huan)在(zai)(zai)使用(yong)滑差電動(dong)機，故使用(yong)變頻器來實現節能，技術(shu)改造工作是當務(wu)之急(ji)的事。

6、與電(dian)動(dong)機工作方式有關(guan)。例如(ru)，連續(xu)運轉(zhuan)、短時運轉(zhuan)、間歇運轉(zhuan)的節電(dian)量是不同的。

7、與電(dian)動(dong)機開(kai)動(dong)時間長短有關(guan)。例(li)如，一天開(kai)機24h，一年開(kai)365天的(de)節電(dian)量就大，反之則小(xiao)。

8、與電(dian)(dian)動機本身功(gong)率(lv)大小(xiao)有(you)關。同樣節(jie)電(dian)(dian)率(lv)下，功(gong)率(lv)大的節(jie)電(dian)(dian)量(liang)值大，經濟效益就大，哪怕(pa)節(jie)電(dian)(dian)率(lv)相對小(xiao)功(gong)率(lv)電(dian)(dian)動機低些(xie)，但實(shi)際收益較(jiao)大。

9、與本單位生產工藝(yi)設各重要性有關(guan)。首先要選產品電耗大的、產品成本高(gao)的、現(xian)用的調速方式是(shi)不夠(gou)經濟合理的設各加(jia)以改造，改用變頻(pin)器(qi)后就能有、事(shi)半功(gong)倍的效果(guo)。

在選用變(bian)頻器調(diao)速或節能時，應該遵守以(yi)上9條(tiao)原(yuan)則，作(zuo)為決定(ding)方案(an)的前(qian)提(ti)。當地電費價格高(gao)的，在同樣節電量(liang)時，經濟(ji)收益(yi)就更大，這(zhe)也是(shi)必然(ran)要考(kao)慮的事。

東(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，泉(quan)州東(dong)(dong)元(yuan)(yuan)負(fu)壓(ya)式(shi)風(feng)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)防爆電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)高壓(ya)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)變(bian)頻電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)剎車電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)減(jian)速(su)(su)(su)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)冷卻(que)塔電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)負(fu)壓(ya)式(shi)風(feng)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)服務中心(xin)，東(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)維修中心(xin)，東(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)配件銷售(shou)中心(xin)，東(dong)(dong)元(yuan)(yuan)高壓(ya)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)軸瓦(wa)，RENK軸瓦(wa)，摩鐸利(li)減(jian)速(su)(su)(su)機(ji)(ji)(ji)，MOTOVARIO減(jian)速(su)(su)(su)機(ji)(ji)(ji)，東(dong)(dong)元(yuan)(yuan)四(si)大系列減(jian)速(su)(su)(su)機(ji)(ji)(ji)，正名(ming)減(jian)速(su)(su)(su)機(ji)(ji)(ji) 摩鐸利(li)減(jian)速(su)(su)(su)機(ji)(ji)(ji)現貨

同步變(bian)(bian)頻與異(yi)(yi)步變(bian)(bian)頻調速(su)機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)差別異(yi)(yi)步變(bian)(bian)頻調速(su)機(ji)(ji)(ji)電(dian)(dian)(dian)是由通俗異(yi)(yi)步機(ji)(ji)(ji)電(dian)(dian)(dian)派生而來，因為要順應變(bian)(bian)頻器輸出(chu)電(dian)(dian)(dian)源(yuan)的(de)(de)特征，機(ji)(ji)(ji)電(dian)(dian)(dian)在(zai)轉子槽(cao)型，絕(jue)緣(yuan)工(gong)藝(yi)，電(dian)(dian)(dian)磁計劃校(xiao)核等作(zuo)了(le)很(hen)大(da)的(de)(de)篡(cuan)改，特別是機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)透風(feng)散(san)熱，它在(zai)一樣平常環(huan)境下附加(jia)了(le)一個獨立式逼迫冷卻風(feng)機(ji)(ji)(ji)，以順應機(ji)(ji)(ji)電(dian)(dian)(dian)在(zai)低(di)(di)速(su)運(yun)轉時的(de)(de)散(san)熱和低(di)(di)落機(ji)(ji)(ji)電(dian)(dian)(dian)在(zai)高速(su)運(yun)轉時的(de)(de)風(feng)摩耗。

變頻器(qi)的(de)(de)輸出(chu)(chu)一樣平常表(biao)現(xian)電(dian)(dian)(dian)源的(de)(de)輸出(chu)(chu)頻率(lv)，轉(zhuan)速輸出(chu)(chu)表(biao)現(xian)為機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)極(ji)數(shu)和電(dian)(dian)(dian)源輸出(chu)(chu)頻率(lv)的(de)(de)盤算(suan)值(zhi)，與異步(bu)(bu)機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)現(xian)實轉(zhuan)速有很(hen)(hen)大差(cha)別，應用一樣平常異步(bu)(bu)變頻電(dian)(dian)(dian)動機(ji)(ji)(ji)時(shi)(shi)，因為異步(bu)(bu)機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)轉(zhuan)差(cha)率(lv)是(shi)由機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)制作(zuo)工藝(yi)決(jue)(jue)(jue)議(yi)，故其團圓性很(hen)(hen)大，并且(qie)負載(zai)的(de)(de)變更直接影響機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)轉(zhuan)速，要準確節制機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)轉(zhuan)速只能(neng)采納光電(dian)(dian)(dian)編(bian)碼(ma)器(qi)停止閉環節制，當(dang)單機(ji)(ji)(ji)節制時(shi)(shi)轉(zhuan)速的(de)(de)精(jing)度由編(bian)碼(ma)器(qi)的(de)(de)脈沖(chong)數(shu)決(jue)(jue)(jue)議(yi)，當(dang)多機(ji)(ji)(ji)節制時(shi)(shi)，多臺機(ji)(ji)(ji)電(dian)(dian)(dian)的(de)(de)轉(zhuan)速就無奈(nai)嚴厲同步(bu)(bu)。這是(shi)異步(bu)(bu)機(ji)(ji)(ji)電(dian)(dian)(dian)后天所決(jue)(jue)(jue)議(yi)的(de)(de)。

東(dong)(dong)(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)防爆電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)高壓(ya)(ya)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)變(bian)頻電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)剎車(che)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)減速(su)(su)(su)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)冷卻塔電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)負壓(ya)(ya)式(shi)風機(ji)(ji)(ji)(ji)(ji)(ji)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)服務(wu)中心(xin)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)負壓(ya)(ya)式(shi)風機(ji)(ji)(ji)(ji)(ji)(ji)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)服務(wu)中心(xin)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)維修中心(xin)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)配件銷(xiao)售(shou)中心(xin)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)高壓(ya)(ya)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)軸瓦，RENK軸瓦，摩(mo)鐸利(li)減速(su)(su)(su)機(ji)(ji)(ji)(ji)(ji)(ji)，MOTOVARIO減速(su)(su)(su)機(ji)(ji)(ji)(ji)(ji)(ji)，東(dong)(dong)(dong)(dong)元(yuan)(yuan)四大系列減速(su)(su)(su)機(ji)(ji)(ji)(ji)(ji)(ji)，正名減速(su)(su)(su)機(ji)(ji)(ji)(ji)(ji)(ji) 摩(mo)鐸利(li)減速(su)(su)(su)機(ji)(ji)(ji)(ji)(ji)(ji)現貨

4.電(dian)源電(dian)壓偏高，勵磁(ci)電(dian)流增大(da)，電(dian)機會過度發(fa)熱

過(guo)高電壓會(hui)(hui)危(wei)及電機絕緣(yuan)，使其(qi)有被(bei)擊穿(chuan)的危(wei)險(xian)。電源(yuan)電壓過(guo)低(di)(di)時(shi)(shi)，電磁轉(zhuan)矩就會(hui)(hui)降低(di)(di)，如果(guo)負載(zai)轉(zhuan)距(ju)沒有減小(xiao)，轉(zhuan)子(zi)轉(zhuan)數過(guo)低(di)(di)，這(zhe)時(shi)(shi)轉(zhuan)差率增大(da)會(hui)(hui)造成電機過(guo)載(zai)而發(fa)熱(re)，長時(shi)(shi)間過(guo)載(zai)會(hui)(hui)影響電機的壽命。當(dang)三(san)相電壓不對稱時(shi)(shi)，即一(yi)相電壓偏(pian)高或偏(pian)低(di)(di)時(shi)(shi)，會(hui)(hui)導致某相電流(liu)過(guo)大(da)，電機發(fa)熱(re)，同時(shi)(shi)轉(zhuan)距(ju)減小(xiao)會(hui)(hui)發(fa)出“嗡(weng)嗡(weng)”聲(sheng)，時(shi)(shi)間長了會(hui)(hui)損壞繞(rao)組。

總之，無論(lun)電(dian)(dian)(dian)壓(ya)過(guo)高、過(guo)低或(huo)電(dian)(dian)(dian)壓(ya)不(bu)對稱(cheng)都會(hui)使電(dian)(dian)(dian)流增加，電(dian)(dian)(dian)機(ji)(ji)(ji)發熱而損壞電(dian)(dian)(dian)機(ji)(ji)(ji)。因此按照，電(dian)(dian)(dian)機(ji)(ji)(ji)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓(ya)的變(bian)化應不(bu)超(chao)(chao)出(chu)額定值的±5%，電(dian)(dian)(dian)機(ji)(ji)(ji)輸出(chu)功率可保持額定值。電(dian)(dian)(dian)機(ji)(ji)(ji)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓(ya)不(bu)允許超(chao)(chao)過(guo)額定值的±10%，三(san)相(xiang)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓(ya)之間的差值不(bu)應超(chao)(chao)出(chu)額定值的±5%。

5.繞組(zu)短路(lu)，匝(za)間短路(lu)，相間短路(lu)和(he)繞組(zu)斷路(lu)

繞(rao)(rao)組(zu)(zu)中(zhong)相鄰兩(liang)條(tiao)導線之間(jian)(jian)的絕緣(yuan)損壞后，東元(yuan)負(fu)壓式(shi)風機(ji)電(dian)(dian)機(ji)批發(fa)，使(shi)(shi)兩(liang)導體(ti)相碰，稱(cheng)為(wei)繞(rao)(rao)組(zu)(zu)短(duan)(duan)(duan)路(lu)(lu)(lu)。發(fa)生在同一(yi)繞(rao)(rao)組(zu)(zu)中(zhong)的繞(rao)(rao)組(zu)(zu)短(duan)(duan)(duan)路(lu)(lu)(lu)稱(cheng)為(wei)匝間(jian)(jian)短(duan)(duan)(duan)路(lu)(lu)(lu)。發(fa)生在兩(liang)相繞(rao)(rao)組(zu)(zu)之間(jian)(jian)的繞(rao)(rao)組(zu)(zu)短(duan)(duan)(duan)路(lu)(lu)(lu)稱(cheng)為(wei)相間(jian)(jian)短(duan)(duan)(duan)路(lu)(lu)(lu)。不論是那(nei)一(yi)種，都會使(shi)(shi)某一(yi)相或(huo)(huo)兩(liang)相電(dian)(dian)流增加，引起(qi)局部發(fa)熱(re)，使(shi)(shi)絕緣(yuan)老化損壞電(dian)(dian)機(ji)。繞(rao)(rao)組(zu)(zu)斷(duan)路(lu)(lu)(lu)是指電(dian)(dian)機(ji)的定子或(huo)(huo)轉(zhuan)子繞(rao)(rao)組(zu)(zu)碰斷(duan)或(huo)(huo)燒斷(duan)造成的故障。不論是繞(rao)(rao)組(zu)(zu)短(duan)(duan)(duan)路(lu)(lu)(lu)或(huo)(huo)斷(duan)路(lu)(lu)(lu)都可能引起(qi)電(dian)(dian)機(ji)發(fa)熱(re)甚至燒毀。因(yin)此，發(fa)生這種情況后必須立即停機(ji)處理。