The shutdown of electric motors in certain applications has the need to use a rapid deceleration of the motor and the load. When turned off, the power line motor uses a rotation reversing device with the motor still running. Stopping or shutting down the mains motor takes place through 41bs36 5/8 a relay preventing the motor from breaking in the opposite direction. In the case of synchronous electric motors, dynamic braking is used.
In the direction or direction of rotation most of the motors were some, for example in single-phase motors such as the shaded pole and the repulsion, they can be applied in both directions of rotation depending only on a suitable control to achieve this event. The direction of rotation of the axis of a DC motor is conferred by both the north-south polarity of the field flux and the direction of the armature current. To reverse the direction of rotation, simply change the polarity of the DC source that feeds the field winding or DC source that feeds the armature, this in the case of independent excitation.