Most pumps and followers operating in commercial and industrial applications are currently driven by AC induction motors. “ACIM”, which means “alternating permanent magnet synchronous motor electric current induction motor”, is an asynchronous kind of motor that depends on electric current to turn the rotor. Torque is definitely produced by electric energy in the rotor. The electric current is produced through electromagnetic induction from the magnetic field of the stator windings. Within an ACIM, the rotor always rotates at a lesser speed compared to the magnetic field. A “PMSM”, which stands for “permanent magnet synchronous electric motor”, relies on magnets to carefully turn the rotor, which spins at the same quickness as the PMSM’s internal rotating magnetic field.

There are some key differences between AC induction Motors and Permanent Magnet Synchronous Motors.