Most pumps and permanent magnet synchronous motor enthusiasts operating in commercial and commercial applications are driven by AC induction motors. “ACIM”, which means “alternating electric current induction motor”, 
is an asynchronous type of motor that depends on electric current to turn the rotor. Torque can be 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 constantly rotates at a lesser speed compared to the magnetic field. A “PMSM”, which stands for “permanent magnet synchronous engine”, depends on magnets to turn the rotor, which spins at the same quickness as the PMSM’s inner rotating magnetic field.
There are a few key differences among AC induction Motors and Permanent Magnet Synchronous Motors.