2) A 208 V, four-pole, 60 Hz, Y-connected, wound-rotor induction motor has a rated power of 30 HP. The components of its equivalent circuit are R1 = 0.100 R2 = 0.070 XM = 10.0 X1 = 0.210 X2 = 0.210 Pmec = 500 W Psup ~ 0 Pcore = 400 W For a slip of 0.05, find: a) The line current b) The stator copper losses PcE c) The air gap power PEF d) The power converted from mechanical to electrical form Pconv e) The induced torque _ind f) load torque _load g) The total efficiency of the machine h) The speed of the motor in revolutions per minute and in radians per second

2) A 208 V, four-pole, 60 Hz, Y-connected, wound-rotor induction motor has a rated power of 30 HP. The components of its equivalent circuit are R1 = 0.100 R2 = 0.070 XM = 10.0 X1 = 0.210 X2 = 0.210 Pmec = 500 W Psup ~ 0 Pcore = 400 W For a slip of 0.05, find: a) The line current b) The stator copper losses PcE c) The air gap power PEF d) The power converted from mechanical to electrical form Pconv e) The induced torque _ind f) load torque _load g) The total efficiency of the machine h) The speed of the motor in revolutions per minute and in radians per second

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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