A 460-V, 25-hp, 60-Hz, four-pole, Y-connected wound-rotor induction motor has the following impedances in ohms per phase referred to the stator circuit: R1 = 0.641 02, X1 = 1. 106, R2 = 0.332 02, X2=0.464 02, XM = 26.30 a) What is the maximum torque of this motor? At what speed and slip does it occur? b) What is the starting torque of this motor? c) When the rotor resistance is doubled, what is the speed at which the maximum torque now occurs? What is the new starting torque of the motor?
A 460-V, 25-hp, 60-Hz, four-pole, Y-connected wound-rotor induction motor has the following impedances in ohms per phase referred to the stator circuit: R1 = 0.641 02, X1 = 1. 106, R2 = 0.332 02, X2=0.464 02, XM = 26.30 a) What is the maximum torque of this motor? At what speed and slip does it occur? b) What is the starting torque of this motor? c) When the rotor resistance is doubled, what is the speed at which the maximum torque now occurs? What is the new starting torque of the motor?
Introductory Circuit Analysis (13th Edition)
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![A 460-V, 25-hp, 60-Hz, four-pole, Y-connected wound-rotor induction motor
has the following impedances in ohms per phase referred to the stator circuit:
R1 = 0.641 02, X1 = 1. 106, R2 = 0.332, X2=0.464 , XM = 26.30
a) What is the maximum torque of this motor? At what speed and slip does it
occur?
b) What is the starting torque of this motor?
c) When the rotor resistance is doubled, what is the speed at which the
maximum torque now occurs? What is the new starting torque of the
motor?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7576117e-4eab-4871-ad9a-884aa6affd30%2F39489911-aea4-4d89-9c47-8977519857df%2F90vqqwu_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A 460-V, 25-hp, 60-Hz, four-pole, Y-connected wound-rotor induction motor
has the following impedances in ohms per phase referred to the stator circuit:
R1 = 0.641 02, X1 = 1. 106, R2 = 0.332, X2=0.464 , XM = 26.30
a) What is the maximum torque of this motor? At what speed and slip does it
occur?
b) What is the starting torque of this motor?
c) When the rotor resistance is doubled, what is the speed at which the
maximum torque now occurs? What is the new starting torque of the
motor?
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