Three-phase motors are frequently used because they're dependable and economical. As a consequence of this group's efforts, you can expect standard motors from various manufacturers to meet or exceed minimal performance parameters and, for the large part, be about the exact size. There are various types of induction motors out there. Today, 3-phase induction motors are extremely common, due to their simple construction, longer life and very low maintenance, when compared with DC motors. A 3 phase induction motor is an incredibly distinctive motor, I would like to explain why. AC induction motors, also referred to as asynchronous motors, utilize a rotating magnetic field to generate torque.