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7-14. A 440-V, 50-Hz, two-pole, Y-connected induction motor is rated at 75 kW. The equivalent circuit parameters are R = 0.075 N R2 = 0.065 N XM = 7.2 N %3D %3D X = 0.17 N X2 = 0.17 N %3D Praw = 1.0 kW Pmise = 150 W Pcore = 1.1 kW %3D For a slip of 0.04, find 470 ELECTRIC MACHINERY FUNDAMENTALS (a) The line current I (b) The stator power factor (c) The rotor power factor (d) The stator copper losses PSCL (e) The air-gap power PAG ) The power converted from electrical to mechanical fom P. conv

7-14. A 440-V, 50-Hz, two-pole, Y-connected induction motor is rated at 75 kW. The equivalent circuit parameters are R = 0.075 N R2 = 0.065 N XM = 7.2 N %3D %3D X = 0.17 N X2 = 0.17 N %3D Praw = 1.0 kW Pmise = 150 W Pcore = 1.1 kW %3D For a slip of 0.04, find 470 ELECTRIC MACHINERY FUNDAMENTALS (a) The line current I (b) The stator power factor (c) The rotor power factor (d) The stator copper losses PSCL (e) The air-gap power PAG ) The power converted from electrical to mechanical fom P. conv

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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7-14. A 440-V, 50-Hz, two-pole, Y-connected induction motor is rated at 75 kW. The equivalent circuit parameters are R = 0.075 N R2 = 0.065 N XM = 7.2 N %3D %3D X1 = 0.17 N X2 = 0.17 N 150 W %3D Praw = = 1.0 kW Pmise P. = 1.1 kW %3D core For a slip of 0.04, find 470 ELECTRIC MACHINERY FUNDAMENTALS (a) The line current IL (b) The stator power factor (c) The rotor power factor (d) The stator copper losses PSCL (e) The air-gap power PAG ) The power converted from electrical to mechanical form P. (g) The induced torque Tind (h) The load torque Tload (i) The overall machine efficiency 7 (j) The motor speed in revolutions per minute and radians per second conv
Transcribed Image Text:7-14. A 440-V, 50-Hz, two-pole, Y-connected induction motor is rated at 75 kW. The equivalent circuit parameters are R = 0.075 N R2 = 0.065 N XM = 7.2 N %3D %3D X1 = 0.17 N X2 = 0.17 N 150 W %3D Praw = = 1.0 kW Pmise P. = 1.1 kW %3D core For a slip of 0.04, find 470 ELECTRIC MACHINERY FUNDAMENTALS (a) The line current IL (b) The stator power factor (c) The rotor power factor (d) The stator copper losses PSCL (e) The air-gap power PAG ) The power converted from electrical to mechanical form P. (g) The induced torque Tind (h) The load torque Tload (i) The overall machine efficiency 7 (j) The motor speed in revolutions per minute and radians per second conv
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