Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818



Electric Motor Control

10th Edition
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 54, Problem 3SQ
Textbook Problem

How is the AC frequency controlled in an alternator?

To determine

Explain the control of AC frequency in an alternator.

Explanation of Solution


The alternator is an AC generator. The alternator’s speed depends on the frequency of the supply current and number of poles of the alternator.

Write the expression to find the alternator’s speed as follows:

RPM=60×HertzPair of poles (1)


Hertz is the unit of frequency of supply current

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems


Get Started

Additional Engineering Textbook Solutions

Find more solutions based on key concepts
Show solutions add
Find the magnitudes of the pin reactions at A, C, and E caused by the 260-Nm couple.

International Edition---engineering Mechanics: Statics, 4th Edition

Discuss the most common performance improvement techniques used in star schemas.

Database Systems: Design, Implementation, & Management

What are the three main task patterns? Provide an example of each.


Calculate the heat loss from a double-pane glass window consisting of two pieces of glass, each having a thickn...

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

What is an internet censorship?

Fundamentals of Information Systems

Use an elastic analysis and determine the maximum load in the weld (in kips per inch of length).


What additional requirements are associated with a dedicated server? (116)


How can discontinuities in the root face be removed?

Welding: Principles and Applications (MindTap Course List)

