Electricity 3: Power Generation and Delivery PDF
Preview Electricity 3: Power Generation and Delivery
Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. 3 ELECTRICITY POWER GENERATION AND DELIVERY 10TH EDITION Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. This is an electronic version of the print textbook. Due to electronic rights restrictions, some third party content may be suppressed. Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. The publisher reserves the right to remove content from this title at any time if subsequent rights restrictions require it. For valuable information on pricing, previous editions, changes to current editions, and alternate formats, please visit www.cengage.com/highered to search by ISBN#, author, title, or keyword for materials in your areas of interest. Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. 3 ELECTRICITY POWER GENERATION AND DELIVERY 1 0 T H E D I T I O N JEFF KELJIK Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. Electricity 3: Power Generation and © 2013, 2009 Delmar, Cengage Learning Delivery, 10E ALL RIGHTS RESERVED. No part of this work covered by the copyright herein Jeff Keljik may be reproduced, transmitted, stored, or used in any form or by any means Vice President, Editorial: Dave Garza graphic, electronic, or mechanical, including but not limited to photocopying, recording, scanning, digitizing, taping, Web distribution, information networks, Director of Learning Solutions: Sandy or information storage and retrieval systems, except as permitted under Section Clark 107 or 108 of the 1976 United States Copyright Act, without the prior written Acquisitions Editor: Stacy Masucci permission of the publisher. 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The publisher makes no representations or warranties of any kind, including but not limited to, the warranties of fi tness for particular purpose or merchantability, nor are any such repre- sentations implied with respect to the material set forth herein, and the publisher takes no responsibil- ity with respect to such material. The publisher shall not be liable for any special, consequential, or exemplary damages resulting, in whole or part, from the readers’ use of, or reliance upon, this material. Printed in the United States of America 1 2 3 4 5 6 7 17 16 15 14 13 Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. CONTENTS vii PREFACE • xiii INTRODUCTION • 1 1 OPERATING PRINCIPLES OF DC GENERATORS • 11 2 SEPARATELY EXCITED DC GENERATOR • 17 3 SELF-EXCITED SHUNT GENERATOR • 25 4 COMPOUND-WOUND DC GENERATOR • 33 5 SUMMARY REVIEW OF UNITS 1–4 • 37 6 SINGLE-PHASE AC GENERATION PRINCIPLES • 43 7 INTRODUCTION TO POLYPHASE CIRCUITS • 53 8 THREE-PHASE WYE CONNECTION • 63 9 THREE-PHASE DELTA CONNECTION • 71 10 SUMMARY REVIEW OF UNITS 6–9 • 77 11 THREE-PHASE ALTERNATORS • 97 12 ENGINE-DRIVEN GENERATING SETS • UNIT 1 INTRODUCTION v Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. vi CONTENTS 107 13 OPERATION OF THREE-PHASE ALTERNATORS • 119 14 WIRING FOR ALTERNATORS • 133 15 ALTERNATIVE POWER SOURCES • 155 16 SUMMARY REVIEW OF UNITS 11–15 • 161 17 TRANSFORMER BASICS • 175 18 SINGLE-PHASE TRANSFORMERS • 193 19 SINGLE-PHASE, THREE-WIRE SECONDARY SYSTEM • 20 SINGLE-PHASE TRANSFORMERS CONNECTED 201 IN DELTA AND OPEN DELTA • 21 SINGLE-PHASE TRANSFORMERS CONNECTED IN 217 WYE SYSTEMS • 22 ALTERNATE WYE AND DELTA CONNECTIONS OF 227 TRANSFORMERS • 239 23 INSTRUMENT TRANSFORMERS • 24 THREE-PHASE TRANSFORMERS, POWER RELAYING, 253 AND MONITORING • 25 TRANSFORMER INSTALLATIONS AND THE NATIONAL 259 ELECTRICAL CODE® • 277 26 SUMMARY REVIEW OF UNITS 17–25 • 287 GLOSSARY • 295 INDEX • Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. PREFACE The tenth edition of ELECTRICITY 3 has been updated to provide more topics and concepts to better reflect the current workplace. At the same time, the text has retained the features and style of previous editions that have made it so popular. The text introduces the concepts of power generation and distribution. The material is broken down into short segments that concentrate on specific concepts or applications of particular types of equipment. The detailed explanations are written in easy-to-understand language and concisely present the needed information. Many illustrations and photographs help provide technical understanding and real-world references. This type of explanation and application better prepares the student to perform effectively on the job in installing, trouble- shooting, repairing, and servicing electrical power generation and delivery. The knowledge obtained in this book permits the student to progress further in the study of electrical systems. The study of electricity and the application of electrical products are con- tinually changing. The electrical industry constantly introduces new and improved devices and material that lead to changes in installation and operation of equipment. Electrical codes also change to reflect industry needs. It is essential that students continue to learn and update their knowledge of current procedures and practices. The text is easy to read and the units have been grouped by general subject areas. Summaries in each unit restate the most important topics of the unit. Summaries of unit group- ings provide reviews of topical areas. Each unit begins with the learning objectives. An Achievement Review at the end of each unit provides an opportunity for readers to check their understanding of the material in small increments before proceeding. The problems in the text sometimes require the use of simple algebra. Students should be familiar with the math before trying to solve the equations. It is also essential that readers have a basic understanding of the fundamentals of electrical circuits and basic electrical concepts. It is recommended that the most recent edition of the National Electrical Code® (published by the National Fire Protection Association [NFPA]) be available for reference and use as the learner uses this text. Application of state and local codes and regulations should also be consulted when making actual installations. Features of the tenth edition include the addition of a unit on alternative power sources which include wind-powered generation, hydrogen fuel cells, microturbine generation, UNIT 1 INTRODUCTION vii Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. viii PREFACE and solar photovoltaic power production. These alternative forms of power supplies are described and then linked to the National Electrical Code®, where applicable, to enhance the understanding of where and how these sources are used. An alternate form for a UPS system is described, to be used for short duration operation in place of battery backup systems. Other features include (cid:129) Organization of topics into related topics and associated concepts (cid:129) Updated photos and artwork to reflect current equipment and practices (cid:129) Content updated to the most recent electrical code (cid:129) Additional information on generation systems (cid:129) Coverage of transformers and connections (cid:129) Summaries and Achievement Reviews at the end of each unit An Instructor Guide for ELECTRICITY 3 is available. The guide includes the answers to the Achievement Reviews and Summary Reviews and additional test questions. Instructors may use these questions to devise tests to evaluate student learning. INSTRUCTOR SITE An Instructor Companion Website containing supplementary material is available. This site contains an Instructor Guide, testbank, image gallery of text figures, and chapter presentations done in PowerPoint. Contact Delmar Cengage Learning or your local sales representative to obtain an instructor account. Accessing an Instructor Companion Website Site from SSO Front Door 1. Go to http://login.cengage.com to log in using the Instructor e-mail address and password. 2. Enter author, title or ISBN in the Add a title to your bookshelf search box, and click on the Search button. 3. Click Add to My Bookshelf to add Instructor Resources. 4. At the Product page, click on the Instructor Companion site link. New Users If you’re new to Cengage.com and do not have a password, contact your sales representative. Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
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