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Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818

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BuyFindarrow_forward

Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 52, Problem 9SQ
Textbook Problem
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A machine delivered for installation has a 2-inch pulley on the motor and a 6-inch pulley on the load. The motor nameplate reads 180 rpm. At what speed in rpm will the driven machine rotate?

To determine

Calculate the speed of the driven machine.

Explanation of Solution

Given data:

The pulley diameters of the motor (drive pulley) and load (driven pulley) are 2-inch and 6-inch respectively.

Formula Used:

Consider the general expression for the relation between the drive and driven pulley’s speed and diameters.

DriverpmDrivenrpm=DrivenPulley DiameterDrivePulley Diameter (1)

Calculation:

Re-arrange Equation (1)

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