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Offers key concepts of electrical machines embedded with solved examples, review questions, illustrations and open book questions.
Written for future electricians, ELECTRICAL TRANSFORMERS AND ROTATING MACHINES, 4e delivers comprehensive coverage reflecting real-world practice. It includes expansive coverage of magnetic measurements, exponential curves, control transformers, transformer nameplates, transformer sizing calculations, transformer installation, three-phase variable autotransformers, and more. The Fourth Edition is also completely up to date with changes from the NEC 2014 code. In addition, hands-on experiments are integrated throughout. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.
On cover: Reclamation, Managing Water in the West. Describes how transformers work, how they are maintained, and how to test and evaluate their condition.
This textbook offers insights into the principles and applications of electrical machines. The text provides a thorough understanding of the fundamentals that are common to all machines. The book elaborates on single-phase and three-phase transformers, DC machines, AC machines as well as commutator motors, and three-phase induction motors, single-phase induction motors, synchronous machines, generators and motors. This book is intended as a text for students pursuing diploma and undergraduate courses in Electrical Engineering in various universities and engineering institutes. Besides, the book takes care of the requirements of students who are preparing for professional examinations, including those conducted by the Institution of Engineers (India), i.e. AMIE. KEY FEATURES: Discusses the step-by-step coverage of the construction of electrical machines. Gives the methods of testing of electrical machines. Provides the performance calculations of electrical machines. Includes numerous worked-out examples.
Very Good,No Highlights or Markup,all pages are intact.
The HVDC Light[trademark] method of transmitting electric power. Introduces students to an important new way of carrying power to remote locations. Revised, reformatted Instructor's Manual. Provides instructors with a tool that is much easier to read. Clear, practical approach.
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.
This book is written so that it serves as a text book for B.E./B.Tech degree students in general and for the institutions where AICTE model curriculum has been adopted. TOPICS COVERED IN THIS BOOK:- Magnetic field and Magnetic circuit Electromagnetic force and torque D.C. Machines D.C. Machines-Motoring and Generation SALIENT FEATURES:- Self-contained, self-explantary and simple to follow text. Numerous worked out examples. Well Explained theory parts with illustrations. Exercises, objective type question with answers at the end of each chapter.
The contribution of Electrical Machines is enormous in the present technological world. A number of new variants of basic machines have been developed in the past years and new topologies have emerged such as permanent magnet machine, reluctance machine, brushless DC. machines and linear machines. Apart from the design and basic structure of machines, their control algorithm is another aspect where effort is being made worldwide. Nevertheless the basic underlying principle of operation remains more or less same for all types of machines. It is this fundamental concept where emphasis is being put in the present textbook.