發布者：佛山市(shi)順德區(qu)華源裝(zhuang)備科技有限(xian)公司(si) 時間：2022-8-1 13:51:48
電容(rong)式啟動電動機
該(gai)類電(dian)動(dong)機可分為電(dian)容分相啟(qi)(qi)(qi)動(dong)電(dian)機和永(yong)久分相電(dian)容電(dian)機。這種電(dian)機結構簡(jian)單、啟(qi)(qi)(qi)動(dong)快速、轉(zhuan)速穩定，被廣泛應用在電(dian)風扇(shan)、排風扇(shan)、抽油煙(yan)機等(deng)家用電(dian)器(qi)中。電(dian)容分相式電(dian)動(dong)機在定子(zi)繞(rao)(rao)(rao)組(zu)上設有主繞(rao)(rao)(rao)組(zu)和副(fu)繞(rao)(rao)(rao)組(zu)（啟(qi)(qi)(qi)動(dong)繞(rao)(rao)(rao)組(zu)），并在啟(qi)(qi)(qi)動(dong)繞(rao)(rao)(rao)組(zu)中串聯大容量啟(qi)(qi)(qi)動(dong)電(dian)容器(qi)，使通(tong)電(dian)后主、副(fu)繞(rao)(rao)(rao)組(zu)的電(dian)相角成(cheng)９０°，從而能產生(sheng)較(jiao)大的啟(qi)(qi)(qi)動(dong)轉(zhuan)矩，使轉(zhuan)子(zi)啟(qi)(qi)(qi)動(dong)運轉(zhuan)。
對于(yu)永(yong)久(jiu)分(fen)相電容電動機(ji)來說，其(qi)(qi)串(chuan)(chuan)接的電容器，當電機(ji)在通電啟(qi)(qi)動或者正常運(yun)行(xing)時，均與(yu)啟(qi)(qi)動繞組(zu)串(chuan)(chuan)接。由于(yu)永(yong)久(jiu)分(fen)相電機(ji)其(qi)(qi)啟(qi)(qi)動的轉矩(ju)較小(xiao)，因此很適于(yu)排風機(ji)、抽風機(ji)等要(yao)求(qiu)啟(qi)(qi)動力矩(ju)低(di)的電器設備中應(ying)用。電容式啟(qi)(qi)動電動機(ji)，由于(yu)其(qi)(qi)運(yun)行(xing)繞組(zu)分(fen)正、反相繞制設定，所以(yi)只(zhi)要(yao)切換運(yun)行(xing)繞組(zu)和啟(qi)(qi)動繞組(zu)的串(chuan)(chuan)接方(fang)向，即可方(fang)便實現電機(ji)逆、順(shun)方(fang)向運(yun)轉。
