A four-pole induction motor drives a load at 2575 rpm. This is to beaccomplished by using an electronic converter to convert a 400-V dc sourceinto a set of three-phase ac voltages.▾ Part AFind the frequency required for the ac voltages assuming that the slip is 4 percent. The load requires 2 hp.Express your answer to three significant figures and include the appropriate units.f=Submit▾ Part BValueμÀSubmitI= ValueProvide Feedback^Request AnswerIf the dc-to-ac converter has a power efficiency of 85 percent and the motor has a power efficiency of 80 percent, estimate the current taken from the dc source.Express your answer to three significant figures and include the appropriate units.4ÒRequest AnswerUnits?Units?

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Answered: A four-pole induction motor drives a…

A four-pole induction motor drives a load at 2575 rpm. This is to be accomplished by using an electronic converter to convert a 400-V dc source into a set of three-phase ac voltages.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

A four-pole induction motor drives a load at 2575 rpm. This is to be
accomplished by using an electronic converter to convert a 400-V dc source
into a set of three-phase ac voltages.
▾ Part A
Find the frequency required for the ac voltages assuming that the slip is 4 percent. The load requires 2 hp.
Express your answer to three significant figures and include the appropriate units.
f=
Submit
▾ Part B
Value
μÀ
Submit
I= Value
Provide Feedback
^
Request Answer
If the dc-to-ac converter has a power efficiency of 85 percent and the motor has a power efficiency of 80 percent, estimate the current taken from the dc source.
Express your answer to three significant figures and include the appropriate units.
4
Ò
Request Answer
Units
?
Units
?

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