A synchronous and synchronous motors are the two main categories of ac motors. The induction motor is a common form of asynchronous motor and is basically an ac transformer with a rotating secondary.

Since AC induction motors have been established as the preferred choice for industrial motors and the need for reduced power in all aspects of design is ever present, the efficiency of these motors is ...

This article was updated May 15, 2023. It was originally published July 14, 2020. It often takes a lot of energy to get a motor up to speed. Across-the-line starters (DOL), the most common starter ...