Question

derive the relation between rotor output,rotor input and slip in case of three phase induction motor​

Answer 1

Explanation:

Rotor Input vs Copper Loss vs mechanical power;

The rotor input power P2, rotor copper loss Pc, gross mechanical power developed Pm and slip has below-mentioned relation.

P2 : Pc : Pm = 1 : s : (1-s)

From that,

P2 – Pc = Pm

(1-s) P2 = Pm

Pc = s P2