A 3-phase, 416-V, 50-Hz, 35 HP, 6-pole, Y-connected induction motor has the following Thevenin's equivalent circuit components: VTH = 412 Volts,ZTH = 0.2 + j0.6 Q, R2 = 0.15 Q , X2 = 0.4 Q. Find the slip at maximum torque and the pullout torque of this motor. Select one: O a. Smax = 0.253, and Tmax = 2117.8 N.m. O b. None O c. Smax = 0.147, and Tmax = 1993 N.m. O d. Smax = 0.101, and Tmax = 1861.8 N.m. Clear my choice

A 3-phase, 416-V, 50-Hz, 35 HP, 6-pole, Y-connected induction motor has the following Thevenin's equivalent circuit components: VTH = 412 Volts,ZTH = 0.2 + j0.6 Q, R2 = 0.15 Q , X2 = 0.4 Q. Find the slip at maximum torque and the pullout torque of this motor. Select one: O a. Smax = 0.253, and Tmax = 2117.8 N.m. O b. None O c. Smax = 0.147, and Tmax = 1993 N.m. O d. Smax = 0.101, and Tmax = 1861.8 N.m. Clear my choice

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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The equivalent circuit parameters of a 230-V, 1-phase, 6-pole, 60-Hz induction motor are: R1 = R2’ =10 ohms, X1 = X2’ = 10 ohms, and Xm = 100 ohms. At a slip of 5%, calculate (a) motor speed, (b) input current, (c)power factor, (d) developed torque. (e) at 230V, while running on no-load, is 31.4 W at 1.2 A.What is the approximate efficiency of the motor at 5% slip?
The equivalent circuit parameters of a 230-V, 1-phase, 6-pole, 60-Hz induction motor are: R1 = R2’ =10ohm, X1 = X2’ = 10ohm, and Xm = 100ohm. At a slip of 5%, calculate the developed torque and The input power to the motor at 230V, while running on no-load, is 31.4 W at 1.2 A. What is the approximate efficiency of the motor at 5% slip?
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