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A 460-V 60-Hz four-pole Y-connected induction motor is rated at 25 hp. The equivalent circuit parameters are R, = 0.15 2 R, = 0.154 2 X, = 20 2 X, = 0.852 2 X, = 1.066 2 Praw = 400 W P - 150 W P = 400 W mise core For a slip of 0.02, find (a) The line current I̟ (b) The stator power factor (c) The rotor power factor

A 460-V 60-Hz four-pole Y-connected induction motor is rated at 25 hp. The equivalent circuit parameters are R, = 0.15 2 R, = 0.154 2 X, = 20 2 X, = 0.852 2 X, = 1.066 2 Praw = 400 W P - 150 W P = 400 W mise core For a slip of 0.02, find (a) The line current I̟ (b) The stator power factor (c) The rotor power factor

Introductory Circuit Analysis (13th Edition)
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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Question
3. A 460-V 60-Hz four-pole Y-connected induction motor is rated at 25 hp. The equivalent circuit parameters are R, = 0.15 N R, = 0.154 2 X M = 20 2 X, = 0.852 2 X, = 1.066 N Praw = 400 W Peise 150 W P = 400 W core For a slip of 0.02, find (a) The line current 1, (b) The stator power factor (c) The rotor power factor (d) The rotor frequency (e) The stator copper losses Psc ) The air-gap power PAG (g) The power converted from electrical to mechanical form Po conv (h) The induced torque 7nd (i) The load torque Tad 6) The overall machine efficiency 7 (k) The motor speed in revolutions per minute and radians per second
Transcribed Image Text:3. A 460-V 60-Hz four-pole Y-connected induction motor is rated at 25 hp. The equivalent circuit parameters are R, = 0.15 N R, = 0.154 2 X M = 20 2 X, = 0.852 2 X, = 1.066 N Praw = 400 W Peise 150 W P = 400 W core For a slip of 0.02, find (a) The line current 1, (b) The stator power factor (c) The rotor power factor (d) The rotor frequency (e) The stator copper losses Psc ) The air-gap power PAG (g) The power converted from electrical to mechanical form Po conv (h) The induced torque 7nd (i) The load torque Tad 6) The overall machine efficiency 7 (k) The motor speed in revolutions per minute and radians per second
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