Electrical Engineering ⇒ Topic : Dynamic (or rheostatic) braking
Dynamic (or rheostatic) braking :
In dynamic or rheostatic braking, the stator winding is employed on a D.C. field winding and the rotor winding as an armature winding.
The source of excitation may be provided by :
The magnitude of the braking torque developed by the motor depends upon
Braking torque can be controlled by any or both of the following methods
(1)A. C.dynamic braking is not popular owing to relatively high cost of capacitor banks.
(2)D.C. dynamic braking takes little power from the supply and prouides smooth braking torque, useful for mine winders and high inertia loads.
It entails the following advantages over plugging
The advent of automatic control of dynamic braking of induction motors employing closed loop systems has made induction motors more popular than D.C. motors, especially for the drives employed in mine hoists
!! OOPS Login [Click here] is required for more results / answer