![]() ![]() ![]() Illustrated here are magnet-induced flux and current-induced flux, upon which all electric motor operation is based.Īs the rotor’s induced current and magnetism cause it to follow the field generated by the stator, rotary motion is output.īecause an AC induction motor increases the flux enclosed by its stationary coils, it is a transformer with a rotating secondary (rotor). Conducting bars in the rotor interact with the stator’s magnetic fields current is induced in those bars, which in turn generate magnetic fields that are attracted to those of the stator. The stationary outer stator is connected to an external electrical power source this is fed to the rotor’s poles in a rotating progression that causes revolutions of the magnetic field within the motor. ![]() In all its iterations, the induction motor induces magnetism that is leveraged to output rotary motion. 1st of 3 technologies: AC induction motors here we outline the capabilities of driven AC induction motors, permanent-magnet motors, and servomotors - the three major technologies with partially overlapping functionalities for larger, higher-end applications requiring precisely metered torque, speed, or positioning. This file type includes high resolution graphics and schematics when applicable.Įngineers today are tasked with applying myriad motor technologies because most rotary motion is ultimately powered by electric motors. ![]()
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