SEW Eurodrive AC Motors and Brake Motors

SEW Eurodrive AC Motors and Brake Motors This group of induction machines includes electrical machines whose mode of operation is based on a rotating magnetic field in the air gap between the stator and rotor. The most important and most commonly used machine in this group is the asynchronous AC induction motor with a squirrel cage design. It is characterized by the following features: • A simple and robust design • High operational reliability • Low-maintenance operation In electrical drive technology the following electric motors are generally used: • Asynchronous AC motors (squirrel-cage rotors, slip-ring rotors, torque motors) • Asynchronous single-phase AC motors • Asynchronous or synchronous servomotors • DC motors Since AC motors with frequency inverters provide better, simpler and more low-maintenance speed control, DC motors and AC motors with slip rings are becoming less and less relevant. Other types of AC asynchronous motor are only of marginal importance in drive engineering. As a result, they will not be dealt with in detail here. If you combine an electric motor such as an AC motor with a gear unit you get a gearmotor. Regardless of the electrical principle of the motor, the way it is mounted on a gear unit is becoming especially important in terms of the mechanical design of the motor. SEW‑EURODRIVE uses specially adapted motors with this purpose in mind.

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