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異步電動機的制動方法有哪些的簡單介紹

異步電動機的制動方法有哪些?各自有何特點?速度繼電器用於哪種制動方法

  異步電動機的制動方法一般有兩類:機械制動和電氣制動。機械制動常用的方法有:電磁抱閘和電磁離合器制動。常用的制動方法有能耗制動、反接制動和回饋制動。

    反接制動的優點是:制動力強,制動迅速。缺點是:制動準確性差,制動過程中衝擊強烈,易損壞傳動零件,制動能量消耗大,不宜經常制動。因此反接制動一般適用於制動要求迅速、係統慣性較大,不經常啟動與制動的場合。

能耗制動的優點是制動準確、平穩,且能量消耗較小。缺點是需附加直流電源裝置,設備費用較高,制動力較弱,在低速時制動力矩小。所以,能耗制動一般用於要求制動準確、平穩的場合。

回饋制動是一種比較經濟的制動方法。制動時不需改變線路即可從電動運行狀態自動地轉入發電制動狀態,把機械能轉換成電能再回饋到電網,節能效果顯著。缺點是應用範圍較窄,僅當電動機轉速大於同步轉速時才能實現發電制動。

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聯係方式
  • 聯係人: 吳金孝 先生
  • 電話: 0592-5165553
  • 真: 0592-5165561
  • 手機: 15359409553
  • 地址: 福建省 廈門市 廈門思明區湖濱東路湖光大廈8樓A單元
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