A particular 3-phase, 60-Hz, 208-V, 2.5-hp, 2-pole induction machine has the following parameter values: r, = 0.30 Q r; = 0.25 N Xis = 0.40 N XM = 20 1 Xir = 0.40 N %3D %3D The machine is connected to a balanced, 3-phase, 60-Hz voltage supply so that Vsa 12020° V. It is also connected to a mechanical load so that it runs as a motor with slip s = 0.015. The harmonic content of the power drawn by the drive are provided in the table below. %3D Calculate the current drawn by the motor Isa. Calculate the mechanical velocity of the motor in rpm. Calculate the power factor of this motor. A B

A particular 3-phase, 60-Hz, 208-V, 2.5-hp, 2-pole induction machine has the following parameter values: r, = 0.30 Q r; = 0.25 N Xis = 0.40 N XM = 20 1 Xir = 0.40 N %3D %3D The machine is connected to a balanced, 3-phase, 60-Hz voltage supply so that Vsa 12020° V. It is also connected to a mechanical load so that it runs as a motor with slip s = 0.015. The harmonic content of the power drawn by the drive are provided in the table below. %3D Calculate the current drawn by the motor Isa. Calculate the mechanical velocity of the motor in rpm. Calculate the power factor of this motor. A B

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...

See similar textbooks

Similar questions

5
Please do it on paper
You have been asked to design a cheap fan to fit in a refrigerator. Which motor would you select among the single phase induction motors? Justify your choice.
choose
A repulsion start, induction run motor is used to drive a fan. The motor has a rated power of 2kW and operates at 220V. The repulsion start winding has a resistance of 0.5 ohm while the induction winding has a resistance of 0.3 ohm. Determine the total loss in the motor, assume 0.8 pf.
None
10
Q2. A dc shut generator has a full load current of 50A at 200V. The stray losses are 500W andRsh= 50 ohm. If the full load efficiency is 80% find(1) Ra(2) Load current corresponding to maximum efficiency (3) Draw the variation of load current with efficiency (estimate)
Q#3: Practically we observed that in single phase induction motor a capacitor is need for starting purpose. The question is that why we need the capacitor? And if the capacitor is not available then which device or element will use to start the single phase induction motor? Solution#3 (to be typed here by the student)
Find the value:
A three-phase induction motor has: n-1500 rpm, nm-1440 rpm, the input power of the motor is Pin = 37.5 kW, if the no-load losses (i.e. stator core losses Pscl & core losses Pa) are equal 1.5 kW. Then the rotor core losses is: 1.44 [kW] 1.50 [kW] 3.56 [kW] 4.56 [kW]
A single phase full wave AC voltage controller has a resistive load of 5 ohms and an input voltage of Vs = 240 V (RMS), 50 Hz. The delay angles of both thyristors are set to 45 degrees. The maximum RMS and average current ratings of the thyristor are equal to: Select one: O a. 33.94A and 21.6A O b. None of these O c. 24A and 10.8A O d. 48A and 26.09A Clear my choice