For regenerative breaking, the angular speed is wm = (v/kΦ) + TR/(kΦ)^2. Since the motor speed must be higher than the no-load speed for the back emf (E) to be greater than the supplied voltage (V).
in this case, supply is cut off. also, the current in armature is dissipated in an external resistor. so, its value keeps on decreasing. As a result, torque keeps on decreasing.
Respect
For regenerative breaking, the angular speed is wm = (v/kΦ) + TR/(kΦ)^2. Since the motor speed must be higher than the no-load speed for the back emf (E) to be greater than the supplied voltage (V).
How?
At 21.33 sir mentioned if we go back to this equation ...Can anyone tell me what is that equation?
Speed equation at plugging is being referred
Sir how in case of dynamic braking for shunt exited dc motor , Torque
in this case, supply is cut off. also, the current in armature is dissipated in an external resistor. so, its value keeps on decreasing. As a result, torque keeps on decreasing.
As current goes negetive... Torque becomes negetive