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

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 28RQ: What are the advantages and disadvantages of using the following types of motors? shaded-pole...

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