Basic Introduction To Electric Motors

An electric motor is a device that converts electrical energy into mechanical energy. It uses a energized coil (that is, a stator winding) to generate a rotating magnetic field and acts on a rotor (such as a squirrel cage closed aluminum frame) to form a magnetoelectric dynamic rotational torque. The motor is divided into DC motor and AC motor according to the different power supply, and most of the motors in the power system are AC motors, which can be synchronous motors or asynchronous motors (the motor stator magnetic field speed and the rotor rotation speed do not maintain synchronous speed). The motor is mainly composed of a stator and a rotor, and the direction of the force movement of the energized wire in the magnetic field is related to the direction of current and the direction of the magnetic induction line (magnetic field direction). The working principle of the motor is the action of the magnetic field on the current to make the motor rotate.