A 3-phase induction motor is driving a constant torque load of 1 pu at ___

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
B. 0.50
C. 0.707
D. 0.80

Show Answer

Answer: C

Share your understanding of this question with the correct explanation.