1769-IQ32

由于該電機(jī)具有非常廣泛的應(yīng)用，三相感應(yīng)電機(jī)的速度控制可以帶來額外的優(yōu)勢。

現(xiàn)在，讓我們看看如何在這個電機(jī)中實現(xiàn)速度變化。感應(yīng)電機(jī)的速度是速度或磁場不旋轉(zhuǎn)的函數(shù)，換句話說，是頻率和定子上產(chǎn)生的磁極數(shù)。

N= 120F/P 其中“N”是電機(jī)的轉(zhuǎn)速，“P”是定子上產(chǎn)生的極數(shù)，“F”是饋入定子的電源頻率。因此，通過改變極數(shù)或頻率，我們可以控制感應(yīng)電機(jī)的速度。

定子繞組可以以不同的方式連接，兩個基本端子連接是星形或三角形。

在 delta 中，全相間電壓施加在繞組上，而 instar 僅是線電壓或相間電壓的三倍，并連接在兩個繞組上。從而影響電機(jī)提供的扭矩。

三相感應(yīng)電動機(jī)的銘牌顯示了兩種連接類型，即三角形和星形。

現(xiàn)在讓我們看看三相感應(yīng)電動機(jī)的應(yīng)用。

三相感應(yīng)電機(jī)因其幾乎恒定的速度、轉(zhuǎn)矩和低維護(hù)而具有廣泛的應(yīng)用。

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