An 60 Hz, three-phase induction motor has 2 poles and a rotor resistance of 0.19 per phase and runs at 3312 rpm at full load. Neglect the stator impedance, answer the following questions: . Calculate the additional rotor resistance that will reduce its speed to 2318.4 if torque is not changed. Rext S2 Rezt 30 ac supply S2 Stator . • Calculate the additional rotor resistance that will reduce its speed to 2318.4 if the torque is proportional to the square of the speed. Rotor Rotor resistance.

An 60 Hz, three-phase induction motor has 2 poles and a rotor resistance of 0.19 per phase and runs at 3312 rpm at full load. Neglect the stator impedance, answer the following questions: . Calculate the additional rotor resistance that will reduce its speed to 2318.4 if torque is not changed. Rext S2 Rezt 30 ac supply S2 Stator . • Calculate the additional rotor resistance that will reduce its speed to 2318.4 if the torque is proportional to the square of the speed. Rotor Rotor resistance.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...

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