Mechanical energy is supplied to a d.c. generatorat the rate of 3500 J/s. The generator deliverswww.w28.7 A at 120 Vkabahas(i) What is the percentage efficiency of thegenerator?(ii) How much energy is lost per minute ofoperation?

We have an D.C generator with, Mechanical energy supplied = 3500 J/s Current (I) = 28.7 A Voltage…

www. Mechanical energy is supplied to a d.c. generator at the rate of 3500 J/s. The generator delivers 28.7 A at 120 V (i) What is the percentage efficiency of the generator? (ii) How much energy is lost per minute of operation?

www. Mechanical energy is supplied to a d.c. generator at the rate of 3500 J/s. The generator delivers 28.7 A at 120 V (i) What is the percentage efficiency of the generator? (ii) How much energy is lost per minute of 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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Concept explainers

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.

Question

Mechanical energy is supplied to a d.c. generator
at the rate of 3500 J/s. The generator delivers
www.w
28.7 A at 120 V
kabahas
(i) What is the percentage efficiency of the
generator?
(ii) How much energy is lost per minute of
operation?

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