Three-phase motor self-motivation brake circuit

Published:2011/7/10 2:22:00 Author:Lucas | Keyword: Three-phase motor, KM2 | From:SeekIC

Just as shown in the figure, RC components are connected to stator windings during the free braking so as to form a self-motivation brake circuit. 2KM is closed when the KM1 is off. At this moment, the stator’s remanence induction would generate a capacitive current by RC circuit. It will strengthen the rotor’s remanence magnetic created by its magnetic. The brake torque is formed for braking the motor at high speed. RC circuit’s connection should be done according to the winding connection of the three-phase stator. It is tested that RC with Y connection circuit is suitable for Y-connection motor.



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