It is one of the first electric motor with alternating current.
It was patented in 1888 by Nikola Tesla.
These motors are generally used in heavy industry
mainly in the mining to power ball mills and crusher. In
refineries for reciprocal compressors. It is also used for
electricity generation around the world.
These high-powered motor have a very large torque
even at low speeds. It eliminates the use of speed
reducer.
It is also used to maintain the power factor of a plant. It
is then called synchronous compensator.
This motor requires a complex start-up system.
It has a unique speed and no slip. It can work with a
VFD with modifications.
Its stator is powered by AC current and CC for the rotor.