I am learning about induction motors.
I have a question about the stator current, especially the rotor induced current.
If the rotor rotates at 1-s of sync frequency, then the emf and current induced in the rotor with respect to rotating magnetic field would be less than sync frequency.
I understand that the same rotor current is induced at stator.
Does that mean stator would have current of sync frequency and another frequency of s times sync frequency?
Another query on rotor emf.
If the rotor is perfectly conducting with copper rods, I understand that the resistance would be low.
Since induced emf is proportional to rate of change of stator flux, then I believe that same stator voltage (which causes the rate of change of flux in first place) is induced in the rotor rods (ignoring small resistive drop at stator.)
If, for example, the motor is supplied with 400 volts line to line voltage, does it mean than same 400 volts will appear on the rotor? What does it say about the rotor currents?
Would it be ginormous given small resistances?