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A 75-hp, 460-V, 4-pole, 60-Hz, Y-connected induction motor develops its full-load induced torque at 3% slip when operating at 460 V. The motor has the following per-phase equivalent parameters referred to the stator side: R₁ = 0.07 X1 = 0.35 Ω Xm = 200 Xz = 0.35 Ω The mechanical, core and stray losses represent 5% of the rated output power. Use the approximate circuit model (without Rc) to

A 75-hp, 460-V, 4-pole, 60-Hz, Y-connected induction motor develops its full-load induced torque at 3% slip when operating at 460 V. The motor has the following per-phase equivalent parameters referred to the stator side: R₁ = 0.07 X1 = 0.35 Ω Xm = 200 Xz = 0.35 Ω The mechanical, core and stray losses represent 5% of the rated output power. Use the approximate circuit model (without Rc) to

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A 75-hp, 460-V, 4-pole, 60-Hz, Y-connected induction motor develops its full-load induced torque at 3% slip when operating at 460 V. The motor has the following per-phase equivalent parameters referred to the stator side: R₁ X₁ = = 0.07 Ω 0.35 Ω Xm = 200 X2 = 0.35 Ω The mechanical, core and stray losses represent 5% of the rated output power. Use the approximate circuit model (without Rc) to a) Find R₂ (i.e., referred to the stator side) b) Calculate Tmax, Smax, and the rotor speed at the maximum torque
Transcribed Image Text:A 75-hp, 460-V, 4-pole, 60-Hz, Y-connected induction motor develops its full-load induced torque at 3% slip when operating at 460 V. The motor has the following per-phase equivalent parameters referred to the stator side: R₁ X₁ = = 0.07 Ω 0.35 Ω Xm = 200 X2 = 0.35 Ω The mechanical, core and stray losses represent 5% of the rated output power. Use the approximate circuit model (without Rc) to a) Find R₂ (i.e., referred to the stator side) b) Calculate Tmax, Smax, and the rotor speed at the maximum torque
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