A 600V supply is coupled to a three- phase induction motor with a nominal rating of 100 horsepower (75 KW) and a synchronous speed of 1800 r/min. The ammeter revealed a line current of 78A, and the two-wattmeter approach showed a total power usage of 70kW. The rotor speed is 1763 revolutions per minute, according to accurate measurements. If the iron losses are 2 kW, and the windage and friction losses are 1.2 KW, (the resistance between the two terminals of the stator is 0.342) calculate: 2. Rotor cu losses * Your answer 3. Torque generated at 1763 revolutions per minute * Your answer 4. Efficiency * Your answer 1. The power supplied to the rotor * Your answer

A 600V supply is coupled to a three- phase induction motor with a nominal rating of 100 horsepower (75 KW) and a synchronous speed of 1800 r/min. The ammeter revealed a line current of 78A, and the two-wattmeter approach showed a total power usage of 70kW. The rotor speed is 1763 revolutions per minute, according to accurate measurements. If the iron losses are 2 kW, and the windage and friction losses are 1.2 KW, (the resistance between the two terminals of the stator is 0.342) calculate: 2. Rotor cu losses * Your answer 3. Torque generated at 1763 revolutions per minute * Your answer 4. Efficiency * Your answer 1. The power supplied to the rotor * Your answer

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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