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当电枢随拖拽电机转动时,因为电枢与磁极中间的相对速度,电枢磁感应造成涡旋,涡流与磁通相互影响造成扭距,推动磁极电机转子向同一方向转动,但其速率稳定小于电枢的速率N1,这也是一种差调速方法,更改差离合的直流电励磁电流量,可更改离合的输入输出力矩和速率。
电磁制动电动机的调速通常是通过改变电机的电源电压或改变电机的极数来实现的。在调速过程中,需要注意以下几点:
改变电源电压:电磁制动电动机通常使用交流电源供电,可以通过改变电源电压来调节电机的转速。通过降低电源电压,可以减小电机的转速,反之则可以增加电机的转速。
改变电机的极数:电磁制动电动机也可以通过改变电机的极数来实现调速。改变极数的方法有两种,一种是更换电机的转子,另一种是通过改变电机的绕组连接方式来实现。
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