Question

Ward-Leonard system is provided in the winding system in order to restrict

• A. Over-winding of the cage
• B. Deceleration of the cage
• C. Acceleration of the cage
• D. Over-speeding of the cage

Hint:

The Ward-Leonard system is widely used in mine winding systems for its ability to provide smooth and precise speed control, enhancing safety.

Answer 1

The Correct Option is D

The Ward-Leonard system is an electrical control system used in winding systems, such as those in mine hoists, to precisely control the speed of the motor driving the cage. By adjusting the voltage supplied to the motor, the system ensures that the cage does not exceed safe speeds, thus preventing over-speeding, which could lead to accidents. While over-winding, deceleration, and acceleration are important considerations in winding systems, the primary role of the Ward-Leonard system is to regulate speed and prevent over-speeding.
Thus, the correct answer is Over-speeding of the cage.