SOLUTION

• Fixed-speed drives are operated at a single, constant speed.
• They possess only the equipment necessary for switching on and off, as well as for protecting against overload.
• It is not possible to vary the speed of the drive, which means that depending on the load the speed may fluctuate.
• Typical applications for fixed-speed drives are fans and pumps which are operated with an asynchronous motor direct-on-line.
• Fans, pumps, Blowers are the example of Fixed-speed drives.