如何降低沈陽螺桿壓縮機電機的啟動電流？國夏螺桿壓縮機制造商認為，降低螺桿壓縮機電機起動電流的常用起動方法包括直接起動、串聯電阻起動、自耦變壓器起動、星形三角減壓起動和變頻器起動，以減少對電網的影響。

沈(shen)陽螺桿壓(ya)(ya)縮機(ji)電機(ji)串聯電阻起(qi)動(dong)(dong)，即跳閘起(qi)動(dong)(dong)法。在啟(qi)(qi)動(dong)(dong)過(guo)(guo)程(cheng)中(zhong)，定子繞組(zu)電路中(zhong)的(de)串聯電阻在啟(qi)(qi)動(dong)(dong)電流通(tong)(tong)過(guo)(guo)時產生壓(ya)(ya)降(jiang)(jiang)，從而降(jiang)(jiang)低定子繞組(zu)的(de)附(fu)加(jia)電壓(ya)(ya)，達到降(jiang)(jiang)低啟(qi)(qi)動(dong)(dong)電流的(de)目的(de)，自荷變壓(ya)(ya)器(qi)的(de)啟(qi)(qi)動(dong)(dong)，采(cai)用(yong)自耦(ou)變壓(ya)(ya)器(qi)多抽頭降(jiang)(jiang)壓(ya)(ya)不僅可(ke)(ke)以(yi)(yi)滿足不同(tong)負載下的(de)啟(qi)(qi)動(dong)(dong)需(xu)求(qiu)，而且可(ke)(ke)以(yi)(yi)獲得更大的(de)啟(qi)(qi)動(dong)(dong)轉(zhuan)矩(ju)。這是一種減壓(ya)(ya)起(qi)動(dong)(dong)方法，通(tong)(tong)常用(yong)于起(qi)動(dong)(dong)大容量電機(ji)。它(ta)優點是起(qi)動(dong)(dong)轉(zhuan)矩(ju)大。當繞組(zu)抽頭為80°時，起(qi)動(dong)(dong)轉(zhuan)矩(ju)可(ke)(ke)以(yi)(yi)達到直接起(qi)動(dong)(dong)轉(zhuan)矩(ju)。64動(dong)(dong)態扭(niu)矩(ju)可(ke)(ke)以(yi)(yi)通(tong)(tong)過(guo)(guo)絲錐調(diao)節。

沈陽螺(luo)桿壓(ya)(ya)縮(suo)機(ji)(ji)直接啟動是將電(dian)(dian)(dian)(dian)機(ji)(ji)定子繞組直接連(lian)接到電(dian)(dian)(dian)(dian)源上，并在額定電(dian)(dian)(dian)(dian)壓(ya)(ya)下起(qi)動。螺(luo)桿壓(ya)(ya)縮(suo)機(ji)(ji)具有起(qi)動轉(zhuan)矩大、起(qi)動時間短的特(te)點。這也是簡單(dan)、經濟和可(ke)靠的起(qi)動方(fang)法。全(quan)電(dian)(dian)(dian)(dian)壓(ya)(ya)起(qi)動時，電(dian)(dian)(dian)(dian)流大，起(qi)動轉(zhuan)矩小，操(cao)作方(fang)便，起(qi)動速度快。然而，這種起(qi)動方(fang)法需要(yao)較大的電(dian)(dian)(dian)(dian)網容量和負荷，主要(yao)適用于(yu)1W以下的電(dian)(dian)(dian)(dian)動機(ji)(ji)起(qi)動。

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