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A 3-phase induction motor is driving a constant torque load of 1 pu at 5% slip. It has a maximum torque of 2 pu at 10% slip. Torque-speed variation in stable zone is assumed to be linear. For a stable operation of the motor, the minimum per unit supply voltage is approximately | |
A. | 0.25 [Wrong Answer] |
B. | 0.50 [Wrong Answer] |
C. | 0.707 [Correct Answer] |
D. | 0.80 [Wrong Answer] |