Electric motors are actually widely used with industrial applications to provide numerous services to gear manufacturers and commercial buildings. The speed of AC motor will be controlled by electromagnetic push systems and proportional on the AC frequency on the power source. Because AC current on the mains only gives a constant frequency, the motors could only run in a constant speed. Even so, a constant motor speed can be power consuming if sometimes a lower speed is important to run the request.
Essential Tools for the Control of Electric Motors
