Answered: It has been decided to establish a new…

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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It has been decided to establish a new electrical machines laboratory. This project includes a new floor model, and the power cables need to be tied with the existing network. The load is estimated to be 5 electrical motors (3 induction motors & 2 synchronous motors) with a demand of 125kW. A three-phase induction motor is installed at first which consumes 22.38 kW and it has 6 poles. The losses measured when the motor runs on 950 rpm is 1.492kW across the load. The motor needs 550VV, 50 Hz supply with a phase displacement of 28.3 °. You are required to calculate and prepare a datasheet for the following parameters. (i) Slip (ii) Rotor Copper Loss (iii) Total input of the stator losses is 2000 w (iv) Efficiency (v) Starting current (vi) The No. of complete cycles of the rotor electro motive force per minute.

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