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人造板機械的電機發熱情況

時間:2017年06月21日來源:本站原創作者:admin點擊:

    電機對于人造板機械的工作來說,發揮著重要的作用,它主要是為人造板機械提供機械動力,但有時候會出現發熱的情況,這是為什么呢?
    如果人造板機械的電源電壓過低,電動機的電磁轉矩保持不變,磁通就將會降低,轉子電流相應增大,定子電流中負載電源分量也會隨之增加,造成繞線的銅損耗增大,從而導致發熱。如果電源電壓過高,電動機反電動勢、磁通及磁通密度均會隨之增大,由于鐵損耗的大小與磁通密度平方成正比,則鐵損耗增加,導致鐵心過熱。
    當三相電源不平衡的時候,就會使人造板機械電動機的三相電流不平衡,從而引起繞組過熱。

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