A 300k W, 6600- v, eight poles, 60 Hz, three phase Y-connected synchronous motor has a synchronous reactance of 88 2, and negligible armature resistance. All losses are neglected. a) Calculate the induced torque in the motor when the motor is set to operate at rated power and unity power factor. Draw a phasor diagram for this condition. b) If the mechanical load is now removed and the field current is unchanged calculate the value of reactive power of the motor. Draw a phasor diagram for this condition.

A 300k W, 6600- v, eight poles, 60 Hz, three phase Y-connected synchronous motor has a synchronous reactance of 88 2, and negligible armature resistance. All losses are neglected. a) Calculate the induced torque in the motor when the motor is set to operate at rated power and unity power factor. Draw a phasor diagram for this condition. b) If the mechanical load is now removed and the field current is unchanged calculate the value of reactive power of the motor. Draw a phasor diagram for this condition.

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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