Electrical Machines
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A Textbook Of Electrical Machines
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Author : D B Raval
language : en
Publisher: Vikas Publishing House
Release Date :
A Textbook Of Electrical Machines written by D B Raval and has been published by Vikas Publishing House this book supported file pdf, txt, epub, kindle and other format this book has been release on with Technology & Engineering categories.
This is a single-volume book on 'electrical machines' that teaches the subject precisely and yet with amazing clarity. The extent has been kept in control so that the entire subject can be covered by students within the limited time of the semesters. Thus, they will not have to consult multiple books anymore. The discussions of concepts include the modern trends used in industry, like efficient transformers, efficient induction motors, DC drives, and the problems related to them.
Electrical Machines
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Author : Dr. Hidaia Mahmood Alassouli
language : en
Publisher: Dr. Hidaia Mahmood Alassouli
Release Date : 2020-04-01
Electrical Machines written by Dr. Hidaia Mahmood Alassouli and has been published by Dr. Hidaia Mahmood Alassouli this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-01 with Technology & Engineering categories.
This book includes my lecture notes for electrical machines course. The book is divided to different learning parts · Part 1- Apply basic physical concepts to explain the operation and solve problems related to electrical machines. · Part 2- Explain the principles underlying the performance of three-phase electrical machines. · Part 3- Analyse, operate and test three-phase induction machines. · Part 4- Investigate the performance, design, operation, and testing of the three-phase synchronous machine. Part1: Apply basic physical concepts to explain the operation and solve problems related to electrical machines. Describe the construction of simple magnetic circuits, both with and without an air gap. Explain the basic laws which govern the electrical machine operation, such as Faraday's Law, Ampere-Biot-Savart's Law, and Lenz's Law. Apply Faraday's Law of electromagnetic induction, Ampere-Biot-Savart's Law, and Lenz's Law to solve for induced voltage and currents in relation to simple magnetic circuits with movable parts. Illustrate the principle of the electromechanical energy conversion in magnetic circuits with movable parts. Part 2: Explain the principles underlying the performance of three-phase electrical machines. Compare and contrast concentric and distributed windings in three-phase electrical machines. Identify the advantages of distributed windings applied to three-phase machines. Explain how the pulsating and rotating magnetic fields are produced in distributed windings. Calculate the synchronous speed of a machine based on its number of poles and frequency of the supply. Describe the process of torque production in multi-phase machines. Part 3: Analyse, operate and test three-phase induction machines. Calculate the slip of an induction machine given the operating and synchronous speeds. Calculate and compare between different torques of a three-phase induction machine, such as the locked rotor or starting torque, pull-up torque, breakdown torque, full-load torque or braking torque. Develop and manipulate the equivalent circuit model for the three-phase induction machine. Analyse, and test experimentally, the torque-speed and current-speed characteristics of induction machines. and discuss the effects of varying such motor parameters as rotor resistance, supply voltage and supply frequency on motor torque-speed characteristics. Perform no-load and blocked rotor tests in order to determine the equivalent circuit parameters of an induction machine. Explore various techniques to start an induction motor. Identify the applications of the three-phase induction machines in industry and utility. Classify the insulations implemented in electrical machines windings and identify the factors affecting them. Part4. Investigate the performance, design, operation, and testing of the three-phase synchronous machine. Describe the construction of three-phase synchronous machines, particularly the rotor, stator windings and the rotor saliency. Develop and manipulate an equivalent circuit model for the three-phase synchronous machine. Sketch the phasor diagram of a non-salient poles synchronous machine operating at various modes operation, such as no-load operation, motor operation, and generator operation. Investigate the influence of the rotor saliency on machine performance. Perform open and short circuit tests in order to determine the equivalent circuit parameters of a synchronous machine. Identify the applications of the three-phase synchronous machines in industry and utility List and explain the conditions of parallel operation of a group of synchronous generators. Evaluate the performance of the synchronous condenser and describe the power flow control between a synchronous condenser and the utility in both modes: over and under excited. Explain the principles of controlling the output voltage and frequency of a synchronous generator.
Electrical Machines I
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Author : Uday A. Bakshi
language : en
Publisher: Technical Publications
Release Date : 2020-11-01
Electrical Machines I written by Uday A. Bakshi and has been published by Technical Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-01 with Technology & Engineering categories.
The importance of various electrical machines is well known in the various engineering fields. The book provides comprehensive coverage of the magnetic circuits, magnetic materials, single and three phase transformers and d.c. machines. The book is structured to cover the key aspects of the course Electrical Machines - I. The book starts with the explanation of basics of magnetic circuits, concepts of self and mutual inductances and important magnetic materials. Then it explains the fundamentals of single phase transformers including the construction, phasor diagram, equivalent circuit, losses, efficiency, methods of cooling, parallel operation and autotransformer. The chapter on three phase transformer provides the detailed discussion of construction, connections, phasor groups, parallel operation, tap changing transformer and three winding transformer. The various testing methods of transformers are also incorporated in the book. The book further explains the concept of electromechanical energy conversion including the discussion of singly and multiple excited systems. Then the book covers all the details of d.c. generators including construction, armature reaction, commutation, characteristics, parallel operation and applications. The book also includes the details of d.c. motors such as characteristics, types of starters, speed control methods, electric braking and permanent magnet d.c. motors. Finally, the book covers the various testing methods of d.c. machines including Swinburne's test, brake test, retardation test and Hopkinson's test. The book uses plain, lucid language to explain each topic. The book provides the logical method of explaining the various complicated topics and stepwise methods to make the understanding easy. Each chapter is well supported with necessary illustrations, self-explanatory diagrams and variety of solved problems. All the chapters are arranged in a proper sequence that permits each topic to build upon earlier studies. The book explains the philosophy of the subject which makes the understanding of the concepts very clear and makes the subject more interesting.
Electrical Machines
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Author : BANDYOPADHYAY, M. N.
language : en
Publisher: PHI Learning Pvt. Ltd.
Release Date : 2007-09-27
Electrical Machines written by BANDYOPADHYAY, M. N. and has been published by PHI Learning Pvt. Ltd. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-09-27 with Technology & Engineering categories.
This comprehensive, up-to-date introduction to Electrical Machines is designed to meet the needs of undergraduate electrical engineering students. It presents the essential principles of rotating machines and transformers. The emphasis is on the performance, though the book also introduces the salient features of electrical machine design. The book provides accessible, student-friendly coverage of dc machines, transformers, three-phase induction motor, single-phase induction motor, fractional horsepower motors, and synchronous machines. The clear writing style of the book enhanced by illustrative figures and simplified explanations of the fundamentals, makes it an ideal text for gaining a thorough understanding of the subject of electrical machines. Key Features Include: •Detailed coverage of the construction of electrical machines. •Lucid explanations of the principles of operation of electrical machines. •Methods of testing of electrical machines. •Performance calculations of electrical machines. •Wealth of diverse solved examples in each chapter to illustrate the application of theory to practical problems. •Salient features of design of electrical machines. •Objective type questions to help students prepare for competitive exams.
Principles Of Electrical Machines
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Author : VK Mehta | Rohit Mehta
language : en
Publisher: S. Chand Publishing
Release Date : 2002
Principles Of Electrical Machines written by VK Mehta | Rohit Mehta and has been published by S. Chand Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Technology & Engineering categories.
For over 15 years "Principles of Electrical Machines is an ideal text for students who look to gain a current and clear understanding of the subject as all theories and concepts are explained with lucidity and clarity. Succinctly divided in 14 chapters, the book delves into important concepts of the subject which include Armature Reaction and Commutation, Single-phase Motors, Three-phase Induction motors, Synchronous Motors, Transformers and Alternators with the help of numerous figures and supporting chapter-end questions for retention.
Electrical Machines
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Author : Slobodan N. Vukosavic
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-10-26
Electrical Machines written by Slobodan N. Vukosavic and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-26 with Technology & Engineering categories.
Electrical Machines primarily covers the basic functionality and the role of electrical machines in their typical applications. The effort of applying coordinate transforms is justified by obtaining a more intuitive, concise and easy-to-use model. In this textbook, mathematics is reduced to a necessary minimum, and priority is given to bringing up the system view and explaining the use and external characteristics of machines on their electrical and mechanical ports. Covering the most relevant concepts relating to machine size, torque and power, the author explains the losses and secondary effects, outlining cases and conditions in which some secondary phenomena are neglected. While the goal of developing and using machine mathematical models, equivalent circuits and mechanical characteristics persists through the book, the focus is kept on physical insight of electromechanical conversion process. Details such as the slot shape and the disposition of permanent magnets and their effects on the machine parameters and performance are also covered.
Electrical Machines
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Author : RAMAMOORTY, M.
language : en
Publisher: PHI Learning Pvt. Ltd.
Release Date : 2017-11-01
Electrical Machines written by RAMAMOORTY, M. and has been published by PHI Learning Pvt. Ltd. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-01 with Technology & Engineering categories.
This book covers a brief history of electricity, fundamentals of electrostatic and electromagnetic fields, torque generation, magnetic circuits and detailed performance analysis of transformers and rotating machines. It also discusses the concept of generalised machine which can emulate the dynamic and steady state performance of DC and AC machines. To serve the specific applications of drive systems in industries, many new types of motors are developed in the last few decades. A separate chapter on ‘Special Machines’ is included in this book so that the students should be made aware of these new developments. The book covers the syllabi of many universities in India for a course in Electrical Machines. Therefore, this book would serve the needs of the undergraduate students of Electrical Engineering.
Electrical Machines Their Applications
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Author : J. Hindmarsh
language : en
Publisher: Elsevier
Release Date : 2014-06-28
Electrical Machines Their Applications written by J. Hindmarsh and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-28 with Technology & Engineering categories.
A self-contained, comprehensive and unified treatment of electrical machines, including consideration of their control characteristics in both conventional and semiconductor switched circuits. This new edition has been expanded and updated to include material which reflects current thinking and practice. All references have been updated to conform to the latest national (BS) and international (IEC) recommendations and a new appendix has been added which deals more fully with the theory of permanent-magnets, recognising the growing importance of permanent-magnet machines. The text is so arranged that selections can be made from it to give a short course for non-specialists, while the book as a whole will prepare students for more advanced studies in power systems, control systems, electrical machine design and general industrial applications. Includes numerous worked examples and tutorial problems with answers.
Control Of Electrical Machines
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Author : S K Bhattacharya
language : en
Publisher: New Age International
Release Date :
Control Of Electrical Machines written by S K Bhattacharya and has been published by New Age International this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Electrical Machines For Technicians And Technician Engineers
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Author : Stefan F. Jurek
language : en
Publisher:
Release Date : 1972
Electrical Machines For Technicians And Technician Engineers written by Stefan F. Jurek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Technology & Engineering categories.
Textbook for students studying electrical power engineering.