An AC motor is an electric motor driven by an alternating current. This motor system includes an outer stationary stator and coils driven by alternating current to make a magnetic field revolve, and an inner rotor fixed on the output shaft that produces rotational movement with the help of magnetic field.
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AC motors
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AC drive motor construction
AC drive motor control is organized in the following way: personal computer interface, the engine, the process path and the electrical supply. The electrical supply conducts electricity to the drive, one criterion for selection for the drive is the supply electrical voltage and its frequency.
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A stepper motor is a brushless DC electric motor. It lots a full rotation into separate equal steps. The position of the motor can then be directed to move and keep one of the steps without any open-loop controller; meanwhile the motor is cautiously sized to the application.
AC drive technology is absolutely different from other control methods. It can be compared, for instance, to the distinction between a dirigible and an airplane.
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