Answered: On the plate of a star-connected ring…

On the plate of a star-connected ring induction motor; It is written 7.5 kW, 16 A, 380V, 1430 rpm, Cosθ= 0.82 and f=50 Hz. Find the % efficiency of the motor at its rated (nominal) operation?

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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Question

On the plate of a star-connected ring induction motor; It is written 7.5 kW, 16 A, 380V, 1430 rpm, Cosθ= 0.82 and f=50 Hz. Find the % efficiency of the motor at its rated (nominal) operation?

O 57.9018
O 75.2723
O 86.8527
O 98.4330
O 63.6920
O 69.4821
O 81.0625
O 92.6429

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