controls are the most widely used. one of the reasons for this is that pole-change motors can only give a range of discrete speeds, but additional factors favouring the two alternative methods include less fierce power surges since the ward-leonard motor, or the electric drive motor in the hydraulic...
controls are the most widely used. one of the reasons for this is that pole-change motors can only give a range of discrete speeds, but additional factors favouring the two alternative methods include less fierce power surges since the ward-leonard motor, or the electric drive motor in the hydraulic...
controls are the most widely used. one of the reasons for this is that pole-change motors can only give a range of discrete speeds, but additional factors favouring the two alternative methods include less fierce power surges since the ward-leonard motor, or the electric drive motor in the hydraulic...