Ward Leonard system for controlling the speed of a dc motor is used where
all of the above
Ward Leonard system for controlling the speed of a dc motor is used where the speed in both the directions is required, very fine speed control over the whole range from zero to normal speed is required and the accuracy is speed control is required.
The current drawn by a 120 V dc motor with back emf of 110 V and armature resistance of 0.4 ohm is
With the increase in speed of a dc motor