A 440V, 3-phase , 4-pole , 50hz, 37.3 kW, wye connected induction motor has the following parameter. R1 = 0.1Ω X1 = 0.4Ω R2 = 0.15Ω X2 = 0.44Ω Motor has a stator core loss of 1250W and rotational loss of 1000W. It draws a no load line current of 20A at a pf of 0.09 lag. When the motor operates at a slip of 3%, calculate a. torque develop b. efficiency of the motor

A 440V, 3-phase , 4-pole , 50hz, 37.3 kW, wye connected induction motor has the following parameter. R1 = 0.1Ω X1 = 0.4Ω R2 = 0.15Ω X2 = 0.44Ω Motor has a stator core loss of 1250W and rotational loss of 1000W. It draws a no load line current of 20A at a pf of 0.09 lag. When the motor operates at a slip of 3%, calculate a. torque develop b. efficiency of the motor

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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