Question

The stator otu 415 v, 50 Hz, 6 pole 970 rpm 3 phase induction motor is fed with normal voltage.
The frequency of the rotor induced emf when the motor is running 900rpm​

Answer 1

Explanation:

The stator otu 415 v, 50 Hz, 6 pole 970 rpm 3 phase induction motor is fed with normal voltage.

The frequency of the rotor induced emf when the motor is running 900rpm

Answer 2

Answer:

The synchronous speed of the rotor in RPM N = 120f/P where f is the frequency of the stator current and P is the number of poles. The operating speed No = N - Ns where Ns is the slip speed. The frequency of the rotor current fr = Ns x P/120, so fr = 0 if the slip is zero.