4-20-A three-phase,60-Hz, six pole wound-rotor induction motor draws 10KW when driving its normal load.it draw 700W ,when the load is disconnected The rotor and stator copper loses under normal load are 295 W and 310 W respectively. Calculate the efficiency, the specd, and the shaft torque of this motor under normal load condition, Assume equal rotational and core losses and negligible no-load copper Isses.

4-20-A three-phase,60-Hz, six pole wound-rotor induction motor draws 10KW when driving its normal load.it draw 700W ,when the load is disconnected The rotor and stator copper loses under normal load are 295 W and 310 W respectively. Calculate the efficiency, the specd, and the shaft torque of this motor under normal load condition, Assume equal rotational and core losses and negligible no-load copper Isses.

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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On full-load a 300 V series motor takes 90A and runs at 15 rev/s. The armature resistance is 0.1 ohm and the series winding resistance is 50 m.Determine the speed when developing full load torque but with a 0.2 ohm diverter in parallel with the field winding. (Assume that the flux is proportional to the field current.
On full load, a 300 V series motor takes 90A and runs at 15 rev/s. The armature resistance is 0.1 ohm, and the series winding resistance is 50 mohm. Determine the speed when developing full load torque but with a 0.2-0hm diverter parallel to the field winding. (Assume that the flux is proportional to the field current.
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