廈門(men)重力通(tong)機(ji)(ji)電(dian)(dian)設(she)備(bei)有限公司(si)取得防爆電(dian)(dian)機(ji)(ji)安裝、修理資格證書(shu)，承(cheng)(cheng)接(jie)國(guo)內、外大中(zhong)型交(jiao)流(liu)、直(zhi)流(liu)、高(gao)低(di)壓(ya)電(dian)(dian)機(ji)(ji)，泉州直(zhi)流(liu)電(dian)(dian)機(ji)(ji)，承(cheng)(cheng)接(jie)現場振動(dong)檢測，動(dong)平衡校正；現場機(ji)(ji)電(dian)(dian)設(she)備(bei)安裝調(diao)試、維護、修理、施(shi)工(gong)；橡塑類開煉(lian)機(ji)(ji)輥(gun)筒(tong)表(biao)面、軸承(cheng)(cheng)位修復(fu)，液壓(ya)缸(gang)修復(fu)，以(yi)及各類芯軸修復(fu)。提供FAG軸承(cheng)(cheng)，動(dong)、靜密封，電(dian)(dian)機(ji)(ji)配(pei)件等(deng)機(ji)(ji)電(dian)(dian)產品(pin)。

為什么要選擇電機的(de)(de)功率(lv)？選擇電機功率(lv)的(de)(de)意義何在？

答：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)額定(ding)(ding)功(gong)率(lv)的選(xuan)擇是一個很重(zhong)(zhong)要很復雜的問題。負載(zai)時，如果電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)額定(ding)(ding)功(gong)率(lv)過(guo)大(da)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)就經常處(chu)于輕載(zai)運(yun)(yun)行，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)本身的容量得不(bu)到(dao)充(chong)分的發揮，變成“大(da)馬拉(la)小車(che)”，同時電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)運(yun)(yun)行效率(lv)低、性能不(bu)好，都會(hui)增加運(yun)(yun)行費(fei)用。反過(guo)來，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)額定(ding)(ding)功(gong)率(lv)要求得小，那(nei)便(bian)是“小馬拉(la)大(da)車(che)”，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)超過(guo)額定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)內耗損(sun)加大(da)，效率(lv)低時小事，重(zhong)(zhong)要的是影響電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)的壽命(ming)，即使(shi)過(guo)載(zai)不(bu)多(duo)，直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)維修(xiu)廠家，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)的壽命(ming)也(ye)會(hui)減少(shao)較多(duo)；過(guo)載(zai)較多(duo)，會(hui)破壞(huai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)絕緣材(cai)料(liao)的絕緣性能甚至燒(shao)毀。當然，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)額定(ding)(ding)功(gong)率(lv)小，直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)維修(xiu)保養，可能根本就拖動不(bu)了負載(zai)，會(hui)使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)長時間處(chu)于啟動狀(zhuang)態而過(guo)熱損(sun)壞(huai)。所以應該(gai)嚴(yan)格按照電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動車(che)運(yun)(yun)行情況選(xuan)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)的額定(ding)(ding)功(gong)率(lv)。

廈門重力通(tong)機(ji)(ji)電(dian)設備(bei)有(you)限(xian)公司取得防(fang)爆電(dian)機(ji)(ji)安裝(zhuang)(zhuang)、修(xiu)(xiu)理資格(ge)證書(shu)，承接(jie)國內、外大中(zhong)型交流、直(zhi)流、高(gao)低壓電(dian)機(ji)(ji)，承接(jie)現(xian)場振(zhen)動檢測，動平衡校正；現(xian)場機(ji)(ji)電(dian)設備(bei)安裝(zhuang)(zhuang)調(diao)試、維(wei)護、修(xiu)(xiu)理、施工；橡(xiang)塑類(lei)開煉機(ji)(ji)輥筒表面、軸承位(wei)修(xiu)(xiu)復，液壓缸修(xiu)(xiu)復，以及各類(lei)芯軸修(xiu)(xiu)復。提供FAG軸承，動、靜密封，電(dian)機(ji)(ji)配件(jian)等機(ji)(ji)電(dian)產品。

異步(bu)電(dian)動(dong)機具有結構簡單，制造、使(shi)用(yong)和維(wei)護方便，運行可(ke)靠(kao)以及質量較小，成本較低等(deng)優(you)點。異步(bu)電(dian)動(dong)機主要廣泛(fan)應用(yong)于驅動(dong)機床(chuang)、水泵、鼓風機、壓縮機、起重卷揚設(she)備、礦山(shan)機械、輕工機械、農副產品加(jia)工機械等(deng)大(da)多數(shu)工農生(sheng)產機械以及家(jia)用(yong)電(dian)器和器械等(deng)。在家(jia)用(yong)電(dian)器中應用(yong)比(bi)較多，例(li)如電(dian)扇(shan)、電(dian)冰箱(xiang)、空調、吸塵器等(deng)。

廈門重力通機電設備有限公司取得防爆(bao)電機安(an)裝、修理資格證書，承接國內、外大中型交流(liu)、直流(liu)、高(gao)低壓電機，承接現(xian)場(chang)振動檢測，動平衡校正；現(xian)場(chang)機電設備安(an)裝調試、維護、修理、施工(gong)；橡塑類開(kai)煉機輥筒(tong)表(biao)面、軸承位修復，液(ye)壓缸修復，以(yi)及各類芯軸修復。提供FAG軸承，直流(liu)電機維修，動、靜密封，電機配件等機電產品。

電(dian)機空轉(zhuan)電(dian)流如何測量？

答：將(jiang)萬(wan)用表(biao)(biao)置于(yu) 20A 檔位，將(jiang)紅黑(hei)表(biao)(biao)筆(bi)竄連接在(zai)控制器的電(dian)源輸入(ru)端。打開電(dian)源，再電(dian)機(ji)不(bu)轉(zhuan)的情(qing)況(kuang)下，記錄(lu)下此時(shi)(shi)萬(wan)用表(biao)(biao)的大電(dian)流 A1 。轉(zhuan)動轉(zhuan)把，使(shi)電(dian)機(ji)高速空載轉(zhuan)動 10s 以上，待電(dian)機(ji)轉(zhuan)速穩定后(hou)，開始觀察并記錄(lu)此時(shi)(shi)萬(wan)用表(biao)(biao)的大數(shu)值 A2 。電(dian)機(ji)空載電(dian)流 =A2-A1 。