Types Of Motors. Shaded Pole Motor Shaded pole motors are the original type of AC single-phase induction motor. Also called a single phase induction motor , simply connecting to a single voltage line and an external capacitor is required to make this motor turn. The different types of single phase induction motors vary depending on the method used to started them. The four basic types are split phase, capacitor start, permanent split capacitor, and capacitor start/capacitor run. Split Phase Motor A split phase motor uses a switching device to disconnect the start winding once the motor gets to 75% of its rated speed. Although this type has a simple design which makes it less expensive for commercial use, it also has low starting torques and high starting currents. Capacitor Start Motor The capacitor start motor is a split phase capacitor motor with a capacitor in series with the starting winding to create more starting torque. This motor is more expensive due to ...