軟啟動器是采用軟件控制方式來平滑啟動電動機，控制方式是以軟（件）控強（電）。其控制結果將電動機啟動特性由“硬”平滑為“軟”平滑，故被稱為“軟啟動”。襄陽高壓軟啟動柜又分為兩種：一種是采用變頻恒轉矩限流啟動；另一種是采用晶閘管調壓啟動，又稱智能軟啟動。襄陽軟啟動器廠家雙聯機電軟起動器介紹襄陽高壓固態軟啟動柜

       軟(ruan)(ruan)起(qi)動器(qi)是(shi)一種(zhong)集電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)軟(ruan)(ruan)起(qi)動、軟(ruan)(ruan)停車、輕載節能(neng)和多種(zhong)保護功(gong)能(neng)于一體的(de)新穎電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)控(kong)制(zhi)裝置。它的(de)主要構成是(shi)串(chuan)接于電(dian)(dian)(dian)(dian)(dian)源與(yu)被控(kong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)之間的(de)三(san)相反(fan)并(bing)(bing)聯閘管(guan)及(ji)其電(dian)(dian)(dian)(dian)(dian)子控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)路。運用不(bu)同的(de)方法，控(kong)制(zhi)三(san)相反(fan)并(bing)(bing)聯閘管(guan)的(de)導(dao)通角(jiao)，使(shi)被控(kong)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)的(de)輸入電(dian)(dian)(dian)(dian)(dian)壓按不(bu)同的(de)要求而變化，就可(ke)實現不(bu)同的(de)功(gong)能(neng)。

軟啟(qi)動(dong)器(qi)和變頻(pin)器(qi)是兩種完(wan)全不(bu)同(tong)(tong)用途的(de)產(chan)品。變頻(pin)器(qi)是用于需(xu)要調(diao)速的(de)地方(fang)，其(qi)輸出不(bu)但(dan)改(gai)(gai)變電壓(ya)而且同(tong)(tong)時(shi)(shi)改(gai)(gai)變頻(pin)率；軟啟(qi)動(dong)器(qi)實際上是個調(diao)壓(ya)器(qi)，用于電機起動(dong)時(shi)(shi)，輸出只改(gai)(gai)變電壓(ya)并沒(mei)有(you)改(gai)(gai)變頻(pin)率。變頻(pin)器(qi)具備所有(you)軟起動(dong)器(qi)功能(neng)，但(dan)它的(de)價格(ge)比軟啟(qi)動(dong)器(qi)貴得多，結構也復雜(za)得多。

       軟(ruan)(ruan)(ruan)啟動器只是改變(bian)電源電壓，相當于降(jiang)壓起動器。變(bian)頻器要比軟(ruan)(ruan)(ruan)啟動器復雜得多，價格也(ye)貴(gui)得多。變(bian)頻器也(ye)有(you)軟(ruan)(ruan)(ruan)啟動功能(neng)，是通過改變(bian)電源頻率實現的。