This paper describes a device of cable reel which is driven by computer controlled frequency-changing motor whose velocity can be regulated.
介绍了一种以微机控制变频调速电机驱动电缆卷筒的装置。
The invention is a AC-AC frequency-changing stepless speed regulation device for AC motors.
本发明是一种交流电动机交交变频无级调速装置。
The invention is a AC-AC frequency-changing stepless speed regulation device for AC motors.
本发明是一种交流电动机交交变频无级调速装置。
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