Home Work 12: A 3-phase, 15 kVA, 220 V, star-connected, 60HZ, six-pole, salient-pole synchronous motor has 3.1N direct-axis synchronous reactance and 1.86 N quadrature-axis reactance with negligible armature resistance. The motor is over excited and draws rated current at rated voltage from three-phase supply at 0.8 p.f. leading. a)- Determine the excitation voltage. b)- Obtain the value of mechanical power developed. c)- Calculate the developed motor torque.

Home Work 12: A 3-phase, 15 kVA, 220 V, star-connected, 60HZ, six-pole, salient-pole synchronous motor has 3.1N direct-axis synchronous reactance and 1.86 N quadrature-axis reactance with negligible armature resistance. The motor is over excited and draws rated current at rated voltage from three-phase supply at 0.8 p.f. leading. a)- Determine the excitation voltage. b)- Obtain the value of mechanical power developed. c)- Calculate the developed motor torque.

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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