To get the speed of DC motor is more than normal without wastage of electrical energy _____________ is used.
A. Rheostatic control.
B. Ward Leonard control.
C. Any of above method.
D. None of above.
Answer: B
Share your understanding of this question with the correct explanation.
To get the speed of a DC motor higher than normal without wastage of electrical energy, Ward Leonard control is used.
The Ward Leonard control system is a method used for speed control of DC motors. It involves the use of a motor-generator set (M-G set) and a control circuit.
In the Ward Leonard control system, the motor generator converts the fixed-voltage and fixed-frequency AC supply to a variable DC voltage. The control circuit regulates the voltage applied to the motor’s armature, allowing for precise speed control.
By adjusting the control circuit, the output voltage of the motor generator can be increased, which in turn increases the speed of the DC motor. The advantage of using Ward Leonard control is that it allows for precise speed control without excessive wastage of electrical energy.
Therefore, to achieve a higher speed for a DC motor without wasting electrical energy, Ward Leonard control is used. The correct answer is B: Ward Leonard control.