A 3-phase, 6-pole, 60 Hz induction motor runs at a speed of 1140 rpm under a certain load condition. If the operating frequency remains constant but the load varies such that the slip decreases to match a new stable operating point at 1161.6 rpm, what is the new speed of the motor?

A 3-phase slip ring induction motor has a rotor resistance of 0.05 Ω/phase and a standstill rotor reactance of 0.4 Ω/phase. Calculate the external rotor resistance per phase required to obtain maximum torque at starting.

A 3-phase slip ring induction motor has a rotor resistance of 0.05 Ω/phase and a standstill rotor reactance of 0.4 Ω/phase. Calculate the external rotor resistance required per phase to obtain maximum torque at starting.