Electric Machinery and TransformersThis is a revision of Guru/Hiziroglu: Electric Machinery and Transformers, 2/E. The text is designed for the standard third or fourth year (junior/senior) course in electrical engineering commonly called electric machinery or electromechanical energy conversion. This text discusses the principles behind building the primary infrastructure for the generation of electricity (such as hydroelectric dams, turbines, etc.) that supplies the energy needs of people throughout the world. In addition to power generation, the book covers the basics of various types of electric motors, from large electric train motors, to those in hair dryers and smaller devices. The largest markets for a book such as this will be found in countries with developing infrastructures. The text is best known for its accuracy, pedagogy, and clear writing style. This revision should make Electric Machinery and Transformers the most up-to-date text on the market. Electric Machinery and Transformers continues its strong pedagogical tradition with a wealth of examples, new exercises, review questions, and effective chapter summaries. Electric Machinery and Transformers begins with a review of the basics of circuit theory and electromagnetics. Chapter 3 begins the heart of the course with the principles of electromehcanical energy conversion; Chapter 4 covers transformers; Chapters 5 & 6 cover direct current generators and motors; Chapters 7 & 8 cover synchronous generators and motors. Chapters 9 and 10 round out the motors coverage with an introduction to polyphase induction motors and single-phase motors. Finally, Chapter 11 deals with dynamics of electrics machines and Chapter 12 covers special purpoe machines. This revised second edition features updated examples for modern applications, new problems, and additional material on power electronics. An instructor's manual will accompany the main text and will be available free to adopters. |
Contents
Review of Basic Laws of Electromagnetism | 63 |
3 Principles of Electromechanical Energy Conversion | 138 |
Transformers | 202 |
Copyright | |
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air-gap applied voltage armature current armature reaction armature resistance armature winding autotransformer auxiliary winding capacitor coil commutator compound motor conductor connected constant copper loss core loss dc machine dc motor Determine efficiency electric energy equation field current field resistance field winding flux density flux per pole frequency full load given in Figure hysteresis increase induced emf linear linear induction motor loop magnetic circuit magnetic field magnetic flux magnetic material magnetization curve magnetization reactance main winding motor operates no-load per-phase per-unit phase group phasor phasor diagram power angle power developed power factor power input power output R₁ rated load rated voltage revolving field rotational loss rotor resistance secondary winding series field series motor shaded-pole motor short-circuit shown in Figure shunt motor slip slots starting torque stator synchronous motor synchronous speed terminal voltage three-phase three-phase induction motor torque developed V₁ voltage regulation wattmeter Y-connected zero



