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
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
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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Please answer part d,e,f,g,h,I,j,k
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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