In three-phase induction, motor maximum torque is inversely proportional to the

Option 1: Stator voltage

Option 2: Speed of rotor

Option 3: Rotor reactance

Option 4: Rotor resistance

Correct Option: 3

Explanation

The maximum torque in a three-phase induction motor is inversely proportional to the rotor reactance. This is because 2 the equation for maximum torque, T V max = , shows that as rotor reactance increases, maximum torque 2ωsmX2 decreases. Therefore, option 3 is the correct answer.

In three-phase induction, motor maximum torque is inversely proportional to the

Explanation

In 1-ϕ IM if the slip of motor is S with regard to the forward rotating flux, then its slip with regard to the backward rotating flux will be:

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