7. A 250 V DC long-shunt, compound motor takes a current of 82 A at full load. Calculate the motor efficiency, given the following details: armature, shunt field and series field resistance of 0.09 2, 125 Q, 0.042 respectively. Total of all other losses = 750 W 82 A R = 0.04 N R = 125 2 250 V M R=0.09 2 86.73% 88.10% 93.10% 89.84%

7. A 250 V DC long-shunt, compound motor takes a current of 82 A at full load. Calculate the motor efficiency, given the following details: armature, shunt field and series field resistance of 0.09 2, 125 Q, 0.042 respectively. Total of all other losses = 750 W 82 A R = 0.04 N R = 125 2 250 V M R=0.09 2 86.73% 88.10% 93.10% 89.84%

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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