Book description
Due to a huge concentration of electromagnetic fields and eddy currents, large power equipment and systems are prone to crushing forces, overheating, and overloading. Luckily, power failures due to disturbances like these can be predicted and/or prevented.
Based on the success of internationally acclaimed computer programs, such as the authors’ own RNM3D, Engineering Electrodynamics: Electric Machine, Transformer, and Power Equipment Design explains how to implement industryproven modeling and design techniques to solve complex electromagnetic phenomena. Considering recent progress in magnetic and superconducting materials as well as modern methods of mechatronics and computer science, this theory and applicationdriven book:
 Analyzes materials structure and 3D fields, taking into account magnetic and thermal nonlinearities
 Supplies necessary physical insight for the creation of electromagnetic and electromechanical high power equipment models
 Describes parameters for electromagnetic calculation of the structural parts of transformers, electric machines, apparatuses, and other electrical equipment
 Covers power frequency 5060 Hz (worldwide and US) equipment applications
 Includes examples, case studies, and homework problems
Engineering Electrodynamics: Electric Machine, Transformer, and Power Equipment Design provides engineers, students, and academia with a thorough understanding of the physics, principles, modeling, and design of contemporary industrial devices.
Table of contents
 Cover Page
 Half Title
 Title Page
 Copyright Page
 Dedication
 Preface
 Authors
 List of Symbols
 Abbreviations of Names of Computer Methods

1 Methods of Investigation and Constructional Materials
 1.1 Methods of Investigations

1.2 Constructional Materials

1.2.1 Structure and Physical Properties of Metals
 1.2.1.1 Atomic Structure
 1.2.1.2 Ionization
 1.2.1.3 Crystal Structure of Metals
 1.2.1.4 Electrical Conductivity and Resistivity of Metals
 1.2.1.5 Influence of Ingredients on Resistivity of Metals
 1.2.1.6 Resistivity at Higher Temperatures
 1.2.1.7 Thermoelectricity
 1.2.1.8 Thermal Properties
 1.2.1.9 Mechanical Properties
 1.2.1.10 Hall Effect and Magnetoresistivity of Metals
 1.2.2 Superconductivity

1.2.3 Magnetic Properties of Bodies (Ferromagnetism)
 1.2.3.1 Magnetic Polarization and Magnetization
 1.2.3.2 Ferromagnetics, Paramagnetics, and Diamagnetics
 1.2.3.3 Atomic Structure of Ferromagnetics
 1.2.3.4 Zones of Spontaneous Magnetization
 1.2.3.5 Form of the Magnetization Curve
 1.2.3.6 Hysteresis
 1.2.3.7 Superposition of Remagnetization Fields
 1.2.3.8 Amorphous Strips
 1.2.3.9 Rotational Hysteresis
 1.2.3.10 Types of Magnetization Curves
 1.2.3.11 Curie Point
 1.2.3.12 Nonmagnetic Steel
 1.2.3.13 Influence of Various Factors on Properties of Magnetic Materials
 1.2.3.14 Types of Magnetic Permeability
 1.2.3.15 Permeability at High Frequencies
 1.2.3.16 Magnetic Anisotropy
 1.2.3.17 Magnetostriction
 1.2.3.18 Demagnetization Coefficient
 1.2.4 Semiconductors and Dielectrics

1.2.1 Structure and Physical Properties of Metals
 Example

2 Fundamental Equations of Electromagnetic Field
 2.1 Primary Laws and Equations of Electromagnetism
 2.2 Formulation and Methods of Solution of Field Differential Equations
 Example
 2.3 Anisotropic Media
 2.4 Nonlinear Media
 2.5 Fundamental Equations of Magnetohydrodynamics and Magnetogasdynamics
 2.6 Electrodynamics of Superconductors
 2.7 Electrodynamics of Heterogeneous Media
 2.8 Electrodynamics of Semiconductor Devices
 2.9 Electrodynamics of Electrochemical Systems
 2.10 General Wave Equations
 2.11 Fourier’s Method
 2.12 Wave Equations in Cylindrical Coordinates
 2.13 Plane Wave
 Example
 2.14 Reflection and Refraction of Plane Wave

3 Transfer and Conversion of Field Power
 3.1 Poynting’s Theorem: Poynting Vector*
 3.2 Penetration of the Field Power into a Solid Conducting HalfSpace
 Example
 3.3 Power Flux at Conductors Passing through a Steel Wall
 3.4 Power Flux in a Concentric Cable and Screened Bar
 3.5 Power Flux in a Capacitor, Coil, and Transformer
 3.6 Power Fluxes and Their Conversion in Rotating Machines
 Example

4 Screening of Constructional Parts
 4.1 Types and Goals of Screening and Shunting
 4.2 Magnetic Screens
 4.3 Electromagnetic Screens: Wave Method of Modeling and Calculation
 4.4 Power Losses in Screens
 4.5 Screening of Transformer Tanks
 EXAMPLE
 4.6 Induction Motors with a Screened and Multilayer Rotor
 4.7 Screening in Large Generators
 4.8 Screening at Induction Heating
 4.9 Screening of Bars and Conductor Wires
 Example
 Example
 4.10 Electromagnetic Field in Multilayer Screens

5 Magnetic Fields Near Iron Surfaces
 5.1 Method of Mirror Images
 5.2 Field of Endwindings in Electric Machines
 5.3 Field of Bushings
 5.4 Field of Bars Nearby a Steel Surface

5.5 Leakage Field in Transformers and in Slots of Electric Machines
 5.5.1 Application of the Method of Multiple Mirror Images
 5.5.2 Method of Approximate Solution of a Field in a Transformer Window with the Help of Fourier Series
 5.5.3 Numerical Methods: Mesh Methods of Solution of Leakage Magnetic Field in Power Transformers
 5.5.4 Slot in a DeepSlot Induction Machine
 5.5.5 Field in the Gap of Electric Machine
 5.6 Field of Conductors Nearby a Steel Wall
 5.7 Additional Losses in Foil Windings of Transformer

6 Electromagnetic Phenomena in Metals with Constant Permeability
 6.1 Application of Multiple Reflections of Electromagnetic Wave
 6.2 Electrical Steel
 6.3 Power Losses at Current Intersections Through a Screen
 6.4 Power Losses in Steel Covers with Gaps and Nonmagnetic Inserts Between Bushing Holes
 6.5 TransientInduced Processes
 6.6 Solid Rotor of Induction Motor
 6.7 CupType Rotor
 6.8 Principles of Induction Heating
 6.9 HighCurrent Lines

7 Electromagnetic Phenomena in Ferromagnetic Bodies
 7.1 Approximation of Magnetization Characteristics
 7.2 Methods of Considering a Variable Magnetic Permeability
 Example
 7.3 Dependence of Stray Losses in Solid Steel Parts of Transformers on Current and Temperature
 7.4 Power Losses in Steel Covers of Transformers
 7.5 Calculation of Stray Losses in Solid Steel Walls by Means of Fourier’s Series
 EXAMPLE
 7.6 Power Losses in a Transformer Tank
 Example

8 Forces in Electrodynamic Systems
 8.1 Principles of Calculation of Forces Acting on Buses and Windings of Transformers
 8.2 Forces Acting on bus Bars Located Near Steel Constructional Elements
 8.3 Forces Acting on Conductor Surfaces
 8.4 Forces in Slot Parts of Windings of Electric Machines
 Example 8.1
 Example 8.2
 8.5 Reluctance Forces and Torques
 9 Local Heating of Structural Parts

10 Methods of Experimental Investigations
 10.1 Experimental Verification of Theoretical Calculations
 10.2 Principles of Theory of Electrodynamic Similarity
 10.3 Principle of Induction Heating Device Modeling
 10.4 Modeling of High Current Lines
 10.5 Modeling of Transformers and Their Elements
 10.6 Thermometric Method of PerUnit Power Losses Measurement
 10.7 Investigation of Permissible OverExcitation of Power Transformers
 10.8 Measurement of Power at Very Small Power Factors (Cos φ) and/or Small Voltages
 10.9 Other Methods of Measurements
 10.10 Diagnostics of Metal Elements
 10.11 Critical Distance of Tank Wall from Transformer Windings
 10.12 Influence of Flux Collectors
 11 Conclusion
 Appendix
 References
 Index
Product information
 Title: Engineering Electrodynamics
 Author(s):
 Release date: December 2017
 Publisher(s): CRC Press
 ISBN: 9781351831604
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