A 107 hp, 257 V dc shunt motor has the magnetization curve in the graph. The armature circuit resistance, including brushes, is 0.032 ohm. no load rotational losses are 2077 W and the stray loss is 1% of the output The field rheostat is adjusted for a no-load speed of 1107 rpm a. What would be the field current at no load when speed is 1100 rpm b. Determine Specd and output in horsepower corresponding to an armature current of 400A c. Now a cumulative series turns 2 (Nse) per pole is to be added with Rse negligible and 1000 turns in Shunt field find speed corresponding to an armature current of 400A Mmf or shunt-ficld current. per unit 0.6 0.8 1.0 12

A 107 hp, 257 V dc shunt motor has the magnetization curve in the graph. The armature circuit resistance, including brushes, is 0.032 ohm. no load rotational losses are 2077 W and the stray loss is 1% of the output The field rheostat is adjusted for a no-load speed of 1107 rpm a. What would be the field current at no load when speed is 1100 rpm b. Determine Specd and output in horsepower corresponding to an armature current of 400A c. Now a cumulative series turns 2 (Nse) per pole is to be added with Rse negligible and 1000 turns in Shunt field find speed corresponding to an armature current of 400A Mmf or shunt-ficld current. per unit 0.6 0.8 1.0 12

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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