1.8 A motor drive is supplied from a three-phase power converter has conversion efficiency of 90 % when operating at rated load. On the other hand, when the motor operates at rated load, it delivered net output power of 45 kW. The motor electrical and mechanical losses are 1125 W and 1200W respectively. Calculate the efficiency of the system from supply utility to motor shaft. [Ans: 85.5%]

1.8 A motor drive is supplied from a three-phase power converter has conversion efficiency of 90 % when operating at rated load. On the other hand, when the motor operates at rated load, it delivered net output power of 45 kW. The motor electrical and mechanical losses are 1125 W and 1200W respectively. Calculate the efficiency of the system from supply utility to motor shaft. [Ans: 85.5%]

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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