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交流電動機

同步交流電動機特點

發(fā)布日期:2022-04-18 點擊率:54

  同步交流電動機,轉(zhuǎn)子轉(zhuǎn)速與定子旋轉(zhuǎn)磁場的轉(zhuǎn)速相同的交流電動機。同步交流電動機特點有幾個:

  1、功率因數(shù)超前,有利于改善電網(wǎng)的功率因數(shù),增加電網(wǎng)容量。過載能力比相應(yīng)的異步電動機大。

  2、運行穩(wěn)定性高,當(dāng)電網(wǎng)電壓突然下降到額定值時,其勵磁系統(tǒng)一般能自動調(diào)節(jié)實行強行勵磁,保證電動機的運行穩(wěn)定。

  3、轉(zhuǎn)速完全決定于電源頻率。頻率一定時,電動機的轉(zhuǎn)速也就一定,它不隨負(fù)載而變。

  4、運行效率高,尤其是相比低速異步電動機。

 

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