Electric Machines: Theory, Operating Applications, and Controls (2nd Edition)

Valutazione media 4,08
( su 25 valutazioni fornite da Goodreads )
 
9780130612106: Electric Machines: Theory, Operating Applications, and Controls (2nd Edition)

Retaining the user-friendly style of the First Edition, the Second Edition of this unique book provides detailed information on the application and safe operation of motors, generators, and transformers at the Technology Level, and includes examples in the use of NEMA and NEC Standards. With an emphasis on current industrial standards, this book presents AC machines and transformers before DC machines, motors before generators, gives more attention to machine characteristics, and makes extensive use of NEMA standards and tables. For Applications Engineers, Electrical Engineers, Maintenance Engineers, Marine Engineers, Mechanical Engineers, Nuclear Engineers, Operating Engineers, and Petroleum Engineers, who want an easy-to-understand, yet detailed explanation of the current industrial standards in the field of Electronics.

Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.

From the Back Cover:

Here is what reviewers have to say about Electric Machines, Second Edition.

  • The topic organization is certainly unique. I like the concept of developing AC machines first, particularly starting with motors before generators. The practical application concepts and problems are particularly interesting.
  • We do need a machinery book with some NEMA standards and tables as found in Hubert's book. Because DC generators are internally AC generators, covering AC before DC is acceptable given a circuits course and knowledge of complex numbers as a prerequisite for this course.
  • The author's years of experience with machines has resulted in a clean, concise delivery of the text material enhanced by accompanying schematics, pictures, and sample problems.
  • I consider this text to be the best I have seen on the subject of electric machines. The writing style is very good, and the author has both practical and theoretical knowledge. I think this makes the text more believable to the students.
  • A good blend between the simple approach to machines found in some texts and the highly technical approach found in others. Among all the new texts I have seen over the past few years, this is the best.
  • I feel that the general order of topic coverage (transformers, AC machines, and DC machines) while different from the more usual order (DC, AC, transformers) is reasonable and in fact is the order that we have used in our courses for many years. Mr. Hubert's wealth of experience shows through and I am impressed with what I have read.
  • For the general market, the most attractive feature is the stand-alone character of the major sections of the book. The material is well written and the coverage is thorough. Review questions have been well chosen, and homework problems cover the material well. Example problems are appropriate, applicable, and well conceived.
  • When one is forced to teach such a course in one semester, one has to make choices on what to teach and on what to skip. In this respect, the author's decision to introduce AC machinery first and leave DC machinery as a standalone module provides some flexibility to the instructor on how to handle the material.

Excerpt. © Reprinted by permission. All rights reserved.:

This second edition retains the easy-to-understand student-oriented approach that was the hallmark of the first edition. Additional steps were added to some derivations, and some example problems were expanded for even greater clarity and ease of understanding. New example problems and new homework problems were also added to further enhance student learning. Also added is a section on the high-efficiency NEMA design E AC motors.

The text is designed to be used for a one- or two-semester course in electrical machinery. The minimum prerequisite for effective use of the text is a circuits course and a working knowledge of complex algebra and phasor diagrams. A review of current, voltage, and power relationships in the three-phase system, including applications of complex power, is provided in Appendix A for students who need extra help.

The text is unique in that it responds to the needs of faculty in many colleges who have expressed the desire that more attention be given to current industrial requirements. The most frequent request was for a text that allows faculty to devote more time to motors than to generators, and more time to machine characteristics than to different types of armature windings. To accomplish this, motors are presented before generators, and just enough material on armature windings is provided to acquaint the students with basic armature construction and associated technical terms. NEMA standards and tables are introduced in the solution of application-type problems similar to those found on professional engineering license examinations.

To make more efficient use of student time, transformers and AC machines are presented before DC machines; this sequence was developed and used at the United States Merchant Marine Academy for more than 30 years, where a one-quarter course in AC machines was followed by a one-quarter course in DC machines. Teaching transformers and AC machines when knowledge of AC circuits is still fresh is simple and straightforward. The application of phasor diagrams and complex algebra to equivalent series and equivalent series-parallel circuits of AC machines and transformers provides immediate reinforcement of AC circuit theory.

Alternating current machines and transformers are the building blocks of most present-day power and industrial systems and, as such, require greater emphasis than do DC machines. Furthermore, because conventional DC machines are in effect AC machines whose commutators provide the necessary AC/DC and DC/AC conversion, some additional efficiency may be obtained by presenting AC machines before DC machines.

Presenting motors before generators in both AC and DC machines and presenting DC machines as a stand-alone block of three chapters provide significant freedom in course development. Some easy choices include a one-semester course in only AC machines; a one-semester course in both AC and DC machines (de-emphasizing generators); and a two-semester course that includes all topics on motors and generators for both AC and DC machines. Suggested course outlines are included in the Instructor's Manual.

ORGANIZATION OF THE TEXT

The first chapter provides the basic background common to all machines aid transformers. It includes such topics as the development of mechanical force by the interaction of magnetic fields, electromagnetically induced voltages, space angles, electrical degrees, magnetic circuits, and magnetization curves.

The substance of the machinery course begins with transformers in Chapters 2 and 3. Transformers are relatively easy to visualize, and tie in nicely with the ideal transformer covered in a prerequisite circuits course.

The study of induction machines in Chapters 4 and 5 follows naturally from transformers, where the stator is the primary and the rotor is the secondary. Furthermore, introducing induction machines immediately after transformers permits the newly developed equivalent-circuit model and associated phasor diagrams of the transformer to be easily applied to induction-motor theory, illustrating the common relationship they share. Where feasible, approximations are made that allow simplified and practical calculations.

Single-phase induction motors, discussed in Chapter 6, are a natural continuation of three-phase induction motors. Included are capacitor motors, and resistance split-phase motors. Special-purpose motors, such as shaded-pole motors, reluctance motors, hysteresis motors, stepper motors, universal motors, and linear-induction motors are covered in Chapter 7.

Synchronous motors are developed in Chapter 8, and tie in nicely with the rotating field theory of induction motors. The transition from synchronous motor action to synchronous generator operation is presented in Chapter 9. Changes in power angle, as the shaft load is gradually removed and a driving torque applied, are shown on a common phasor diagram. Also included is the parallel operation of synchronous machines, division of load, and power factor correction.

The material on DC machines is designed as a stand-alone block of three chapters (Chapters 10, 11, and 12), so that if desirable it may be taught effectively prior to AC machines and transformers. Thus, courses with special objectives, curriculum requirements, or laboratory constraints that require the early introduction of DC machines may be easily accommodated. Faculty teaching one-quarter or one-semester courses that emphasize AC machines, but still include a very brief introduction to DC machines, will find Chapter 10 (Principles of DirectCurrent Machines) more than adequate for the purpose.

Chapter 13 provides a brief introduction to electronic and magnetic control of motors. Typical examples of. reversing, speed control, braking, and ladder-type circuits are included. Programmable logic controllers (PLCs) are touched on briefly to provide an insight into this expanding field.

Common Core: The text provides a common core of minimum essentials, supplemented with optional material selected (by the instructor) from a wide range of topics in supplemental chapters. The common core, outlined in the Instructor's Manual, assures a basic understanding of electrical machines, while preparing the student for this millennium. This is accomplished by devoting more time to AC and special-purpose machines than to DC machines, devoting more time to motors than to generators, devoting more time to machine characteristics than to armature windings, and making extensive use of NEMA standards and tables in discussions, examples, and problems.

The common core requires approximately 27 periods and is recommended for all electrical machinery courses regardless of length (one quarter, one semester, two quarters, or two semesters). The limited time available in one-quarter machines courses (approximately 30 periods) will, in most cases, limit course content to the common core. However, if magnetic circuits and transformers are covered in previous courses, these common-core topics should be replaced with optional topics selected to meet regional industrial requirements.

One-semester, two-semester, and two-quarter courses provide ample opportunity for more extensive use of optional topics, enabling the instructor to tailor the course to meet specific objectives. A listing of optional topics available in supplemental chapters is given in the Instructor's Manual, along with a universal one-semester outline that is easily adaptable to different course requirements.

Boldface Letters in Equations: Boldface letters in equations and circuit diagrams are used throughout the text to designate the following as complex numbers: current phasors I, voltage phasors V and E, admittance Y, impedance Z, and phasor power (complex power) S. The corresponding magnitudes are printed as I, V, E, Y, Z, S or I, V, E, Y, Z, S.

Boldface Numbers in Rectangular Brackets: Boldface numbers in rectangular brackets, e.g., 5, direct the student to specific end-of-chapter references. This encourages further investigation; students will not have to search a collection of general references for additional information on a specific topic.

Significant Figures: If the answer to one part of a problem is required data for the solution of another part, the unrounded answer is used to minimize continuing errors. Thus, where appropriate, the answers to multipart problems are given in both unrounded form and rounded form. For example, if the answer to part (a) of a problem calls for three significant figures, the text may show it as 127.1648 => 127. Although 127 is the answer, 127.1648 is substituted in parts (b), (c), etc., as appropriate.

Summary of Equations: A summary of equations at the end of each chapter helps guide the students in solving chapter problems, and is a handy reference for the electrical power portions of professional engineering exams. Furthermore, since the equations are keyed to the text, it is easy for the reader to find the associated application and derivation.

Problem Numbers: Problem numbers are keyed to chapter sections by a triple-number system. For example, Problem 5-9/12 indicates that Chapter 5, Problem 9, requires Section 5-12. This makes it easier for faculty to assign homework problems, and easier for a student to pick additional problems for review. Problems recommended for computer solution (using commercially available software) are indicated with an asterisk.

Le informazioni nella sezione "Su questo libro" possono far riferimento a edizioni diverse di questo titolo.

I migliori risultati di ricerca su AbeBooks

Edizione Internazionale
Edizione Internazionale

1.

Hubert
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Soft cover Quantità: > 20
Edizione Internazionale
Da
LOW COST_FAST SHIP
(Scottsdale, AZ, U.S.A.)
Valutazione libreria
[?]

Descrizione libro Soft cover. Condizione libro: New. Opt EXPEDITED shipping for 2 to 4 day delivery - Brand NEW - International Edition - 2ed - SAME Contents as in US edition - SHRINKwrapped BOXpacked - There is no CD or Access Code, unless specified above - Ships from various locations. Codice libro della libreria Z96

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 12,59
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 5,15
In U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

2.

Hubert, Charles I.
Editore: Pearson
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Brossura Quantità: > 20
Edizione Internazionale
Da
Sunshine Book Store
(Wilmington, DE, U.S.A.)
Valutazione libreria
[?]

Descrizione libro Pearson. Condizione libro: New. 0130612103 This is an International Edition. Brand New, Paperback, Delivery within 6-14 business days, Similar Contents as U.S Edition, ISBN and Cover design may differ, printed in Black & White. Choose Expedited shipping for delivery within 3-8 business days. We do not ship to PO Box, APO , FPO Address. In some instances, subjects such as Management, Accounting, Finance may have different end chapter case studies and exercises. International Edition Textbooks may bear a label "Not for sale in the U.S. or Canada" and "Content may different from U.S. Edition" - printed only to discourage U.S. students from obtaining an affordable copy. The U.S. Supreme Court has asserted your right to purchase international editions, and ruled on this issue. Access code/CD is not provided with these editions , unless specified. We may ship the books from multiple warehouses across the globe, including India depending upon the availability of inventory storage. Customer satisfaction guaranteed. Codice libro della libreria HU_9780130612106

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 17,90
Convertire valuta

Aggiungere al carrello

Spese di spedizione: GRATIS
In U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

3.

Charles I. Hubert
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Paperback Quantità: > 20
Edizione Internazionale
Da
US_Superfast_Bookstore
(New Castle, DE, U.S.A.)
Valutazione libreria
[?]

Descrizione libro Paperback. Condizione libro: New. This is an International Edition Brand New Paperback Same Title Author and Edition as listed. ISBN and Cover design differs. Similar Contents as U.S Edition. Standard Delivery within 6-14 business days ACROSS THE GLOBE. We can ship to PO Box address in US. International Edition Textbooks may bear a label "Not for sale in the U.S. or Canada" or "For sale in Asia only" or similar restrictions- printed only to discourage students from obtaining an affordable copy. US Court has asserted your right to buy and use International edition. Access code/CD may not provided with these editions. We may ship the books from multiple warehouses across the globe including Asia depending upon the availability of inventory. Printed in English. Customer satisfaction guaranteed. Codice libro della libreria U_9780130612106

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 15,99
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 2,28
In U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

4.

Hubert
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Brossura Quantità: 10
Edizione Internazionale
Da
bookscollection
(Delhi, DELHI, India)
Valutazione libreria
[?]

Descrizione libro Condizione libro: Brand New. PAPERBACK,Book Condition New, International Edition. We Do not Ship APO FPO AND PO BOX. Cover Image & ISBN may be different from US edition but contents as US Edition. Printing in English language.NO CD AND ACCESS CODE. Quick delivery by USPS/UPS/DHL/FEDEX/ARAMEX ,Customer satisfaction guaranteed. We may ship the books from Asian regions for inventory purpose. Codice libro della libreria ABEADH##2930

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 16,84
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 3,59
Da: India a: U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

5.

Charles I. Hubert
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Softcover Quantità: > 20
Edizione Internazionale
Da
LowPriceBookDeals
(Wilmington, DE, U.S.A.)
Valutazione libreria
[?]

Descrizione libro Softcover. Condizione libro: New. 2nd edition. Brand NEW, Paperback International Edition. Black & White or color, Cover and ISBN may be different but similar contents as US editions. Standard delivery takes 3-6 business days by USPS/UPS/Fedex with tracking number. Choose expedited shipping for superfast delivery 2-4 business days. We do not ship to PO Box addresses. International Edition Textbooks may bear a label Not for sale in the U.S. or Canada etc. printed only to discourage U.S. students from obtaining an affordable copy. Legal to use despite any disclaimer on cover as per US court. No access code or CD included unless specified. In some instances, the international textbooks may have different exercises at the end of the chapters. Printed in English. 100% Customer satisfaction guaranteed! Please feel free to contact us for any queries. Codice libro della libreria LBDUS61426608

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 17,70
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 3,18
In U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

6.

Hubert, Charles I.
Editore: Pearson
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Hardcover Quantità: 10
Edizione Internazionale
Da
Great Book Deals
(PATIALA, PUNJA, India)
Valutazione libreria
[?]

Descrizione libro Pearson. Hardcover. Condizione libro: New. 0130612103 Brand New International Edition. SoftCover. Same Contents as US Editions. ISBN and Cover might be different in some cases. Please allow 4-14 Business days to arrive. Codice libro della libreria AG-INTL-130612103

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 16,94
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 3,99
Da: India a: U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

7.

Hubert, Charles I.
Editore: Pearson (2001)
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Paperback Quantità: 8
Edizione Internazionale
Da
WFL
(Holtsville, NY, U.S.A.)
Valutazione libreria
[?]

Descrizione libro Pearson, 2001. Paperback. Condizione libro: New. New ,International edition , softcover ,Same text as US edition , ISBN /Cover may be different , Ready to ship, 5-8 business days worldwide delivery. Codice libro della libreria INFGYD1F1106

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 17,21
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 3,78
In U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

8.

Hubert, Charles I.
Editore: Pearson (2001)
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Paperback Quantità: 5
Edizione Internazionale
Da
WFL
(Holtsville, NY, U.S.A.)
Valutazione libreria
[?]

Descrizione libro Pearson, 2001. Paperback. Condizione libro: New. New ,International edition , softcover ,Same text as US edition , ISBN /Cover may be different , Ready to ship, 5-8 business days worldwide delivery. Codice libro della libreria INFGYD1G990

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 17,30
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 3,78
In U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

9.

Hubert, Charles I.
Editore: Pearson (2001)
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Paperback Quantità: 5
Edizione Internazionale
Da
WFL
(Holtsville, NY, U.S.A.)
Valutazione libreria
[?]

Descrizione libro Pearson, 2001. Paperback. Condizione libro: New. New ,International edition , softcover ,Same text as US edition , ISBN /Cover may be different , Ready to ship, 5-8 business days worldwide delivery. Codice libro della libreria INFGYC1G1753

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 17,36
Convertire valuta

Aggiungere al carrello

Spese di spedizione: EUR 3,78
In U.S.A.
Destinazione, tempi e costi
Edizione Internazionale
Edizione Internazionale

10.

Hubert,C.T.
ISBN 10: 0130612103 ISBN 13: 9780130612106
Nuovi Softcover Quantità: 20
Edizione Internazionale
Da
Unique Bookseller
(Delhi, India)
Valutazione libreria
[?]

Descrizione libro Softcover. Condizione libro: Brand New. .. Black & White or color International Edition. ISBN and front cover may be different, but contents are same as the US edition. Book printed in English. Territorial restrictions may be printed on the book. GET IT FAST within 3-5 business days by DHL/FedEx/Aramex and tracking number will be uploaded into your order page within 24-48 hours. Kindly provide day time phone number in order to ensure smooth delivery. No shipping to PO BOX, APO, FPO addresses. 100% Customer satisfaction guaranteed!. . Codice libro della libreria UBS04255

Maggiori informazioni su questa libreria | Fare una domanda alla libreria

Compra nuovo
EUR 23,41
Convertire valuta

Aggiungere al carrello

Spese di spedizione: GRATIS
Da: India a: U.S.A.
Destinazione, tempi e costi

Vedi altre copie di questo libro

Vedi tutti i risultati per questo libro