You have a 50 hp three-phase induction motor. connected in Y to √3*138.56 V line voltage. Find the slip, the powers converted, air gap and output and efficiency, if the frequency is 60 Hz and is fed with 35 A at a 0.85 lagging power factor. The losses they are: in the stator copper 2.5 kW; on the rotor 750 W; by friction 650 W and in the core 1850 W. Note: the miscellaneous losses are negligible.

You have a 50 hp three-phase induction motor. connected in Y to √3*138.56 V line voltage. Find the slip, the powers converted, air gap and output and efficiency, if the frequency is 60 Hz and is fed with 35 A at a 0.85 lagging power factor. The losses they are: in the stator copper 2.5 kW; on the rotor 750 W; by friction 650 W and in the core 1850 W. Note: the miscellaneous losses are negligible.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.3P

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