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.
A dc shunt motor is driving a constant torque load with normal excitation. If the filed current is halved then the motor will run at
A dc shunt motor is driving a mechanical load at rated voltage with normal excitation. If the load torque is increased to double of the normal one, the speed of the motor will