Two electric motors are being considered to power an industrial hoist. Each is capable of providing 100 hp. Pertinent data for each motor are as follows: Motor AMotor BInvestmentPhp 25,000Php 32,000Electrical efficiency84%88%Maintenance per yearPhp 400Php 600Life, years1010Money is worth 20%. If the expected usage of the hoist is 800 hours per year, what would the cost of electrical power have to be before Motor A is favored over Motor B?

Given data Motors are capable of producing 100 hp.Each motor is used for 800 hours per year.

Answered: Two electric motors are being…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Two electric motors are being considered to power an industrial hoist. Each is capable of providing 100 hp. Pertinent data for each motor are as follows:

	Motor A	Motor B
Investment	Php 25,000	Php 32,000
Electrical efficiency	84%	88%
Maintenance per year	Php 400	Php 600
Life, years	10	10

Money is worth 20%. If the expected usage of the hoist is 800 hours per year, what would the cost of electrical power have to be before Motor A is favored over Motor B?

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