A 400 V. 6-pole, 3-6, 50 Hz. stur-connected synchronous motorhas negligible armature resistance and 42 synchronous reactanceper phase. It takes a current of 15 A at unity power factor whenoperating with a certain field current. If the load torque is graduallyincreased until the line current is 60 A, the field current remainingunchanged, find the gross torque developed and the new powerfactor.

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A 400 V. 6-pole, 3-. 50 Hz. star-connected synchronous motor has negligible armature resistance and 42 synchronous reactance per phase. It takes a current of 15 A at unity power factor when operating with a certain ficld current. If the load torque is gradually increased until the line current is 60 A, the field current remaining unchanged, find the gross torque developed and the new power factor.

A 400 V. 6-pole, 3-. 50 Hz. star-connected synchronous motor has negligible armature resistance and 42 synchronous reactance per phase. It takes a current of 15 A at unity power factor when operating with a certain ficld current. If the load torque is gradually increased until the line current is 60 A, the field current remaining unchanged, find the gross torque developed and the new power factor.

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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