Power Electronics - Engineering

Q1:

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

ANS:B - will be more than 100 N-m

No answer description is available.