Edition by Stephen L. Herman
Complete Chapter Solutions Manual
are included (Ch 1 to 20)
** Immediate Download
** Swift Response
** All Chapters included
,Table of Contents are given below
1. Plans and Sitework.
2. The Unit Substation.
3. Feeder Bus System.
4. Panelboards.
5. Trolley Busways.
6. Using Wire Tables and Determining
Conductor Sizes.
7. Signaling Systems.
8. Basic Motor Controls.
9. Motors and Controllers.
10. Motor Installation.
11. Power Factor.
12. Ventilating, Air Conditioning, and
Other Facilities.
13. System Protection.
14. Lightning Protection.
15. Site Lighting.
16. Programmable Logic Controllers.
17. Developing a Program for a PLC.
18. Fiber Optics.
19. Hazardous Locations.
20. Harmonics.
,Solutions Manual organized in reverse order, with the last chapter displayed first, to ensure that all
chapters are included in this document. (Complete Chapters included Ch20-1)
Instructor Manual: Herman, Electrical Wiring Industrial, 18e, ISBN 9780357767245;
Chapter 20: Harmonics
Instructor Manual
Herman, Electrical Wiring Industrial, 18e, ISBN 9780357767245;
Chapter 20: Harmonics
TABLE OF CONTENTS
Purpose and Perspective of the Chapter .............................................................................................2
Chapter Objectives.............................................................................................................................2
What's New in This Chapter ...............................................................................................................2
Chapter Outline .................................................................................................................................2
Answers to EOC Review Questions .....................................................................................................5
1
, Instructor Manual: Herman, Electrical Wiring Industrial, 18e, ISBN 9780357767245;
Chapter 20: Harmonics
PURPOSE AND PERSPECTIVE OF THE CHAPTER
The purpose of this chapter is to discuss harmonics. With many of the nonlinear loads that are present,
the student needs to understand the effects of those types of load on the power grid and the solutions
to correct the problems. Harmonics is a very technical topic and this chapter reviews the basics for the
student.
CHAPTER OBJECTIVES
After studying this chapter, the student should be able to
20.01 describe a harmonic.
20.02 discuss the problems concerning harmonics.
20.03 identify the characteristics of different harmonics.
20.04 describe how to perform a test to determine whether harmonic problems exist.
20.05 discuss methods of dealing with harmonic problems.
WHAT'S NEW IN THIS CHAPTER
The following elements are improvements in this chapter from the previous edition:
• No Changes were made
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CHAPTER OUTLINE
The following outline organizes activities (including any existing discussion questions in PowerPoints or
other supplements) and assessments by chapter (and therefore by topic), so that you can see how all
the content relates to the topics covered in the text.
I. Introduction (Slides 3 through 5)
a. Harmonics are voltages or currents that operate at a frequency that is a multiple of the
fundamental power frequency
b. Produced by nonlinear loads that draw current in pulses rather than continuous,
primarily caused by an AC to DC rectification
c. Slide 4 depicts a VFD, which has as the input to it an AC to DC rectification which distorts
the AC waveform
d. Slide 5 depicts the distorted AC waveform from harmonics
2