A 3 phase induction motor is controlled by voltage and frequency control such that the ratio V/f is constant.
At 50 Hz, the starting torque is 100 N-m.
At 25 Hz, the starting torque
A. will be less than 100 N-m
B. will be more than 100 N-m
C. may be more or less than 100 N-m depending on motor parameters
D. very small
Show Answer
Answer: B
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