Dynamic braking dissipates energy externally, while plugging abruptly reverses the motor to decelerate.
Dynamic braking and plugging are methods used to decelerate electric motors. In dynamic braking, the motor's energy is dissipated as heat in an external resistor, allowing the kinetic energy to be converted into electrical energy. This method is more energy-efficient and is commonly used in electric trains and elevators.
On the other hand, plugging involves reversing the motor's direction abruptly to create negative torque, causing rapid deceleration. Unlike dynamic braking, plugging doesn't involve an external resistor, but it can generate high mechanical stress and may not be suitable for all motor types.