Electrical Installations Technology
The Commonwealth and International Library: Electrical Engineering Division
Published on 3. September 2013
372 pages
978-1-4831-3805-3 (ISBN)
Description
Electrical Installations Technology covers the syllabus of the City and Guilds of London Institute course No. 51, the "Electricians B Certificate. This book is composed of 15 chapters that deal with basic electrical science and electrical installations. The introductory chapters discuss the fundamentals and basic electrical principles, including the concept of mechanics, heat, magnetic fields, electric currents, power, and energy. These chapters also explore the atomic theory of electric current and the electric circuit, conductors, and insulators. The subsequent chapter focuses on the chemistry of an electric cell, which is classified into two types, namely, the primary and secondary cells. This text also describes the principles, construction, types, and specifications of direct current machines. A chapter emphasizes the storage of energy for short periods in a capacitor, along with a brief discussion of its theory and construction. Other chapters are devoted to alternating-current systems. The remaining chapters cover the commonly used electrical measuring instruments in electrical installation work. This book is an invaluable source for electricians.
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Content
List of TablesPrefaceAcknowledgmentsSymbols and AbbreviationsIntroduction: Systems of Units1. Mechanics 1.1. Mass, Force, Pressure and Torque 1.2. Work, Energy and Power 1.3. Lifting Machines 1.4. The Parallelogram and Triangle of Forces 1.5. Exercises2. Heat 2.1. Heat 2.2. Temperature 2.3. Temperature Scales 2.4. Heat Units 2.5. Specific Heat 2.6. Heat Transmission 2.7. Conduction 2.8. Convection 2.9. Radiation 2.10. Change of Dimensions with Temperature 2.11. Exercises3. Basic Electrical Principles 3.1. What is Electricity? 3.2. The Atomic Theory of Electric Current 3.3. The Electric Circuit 3.4. Conductors and Insulators 3.5. The Effects of an Electric Current Flow 3.6. Units of Electric Current Flow and Quantity 3.7. Electromotive Force and Potential Difference 3.8. Resistance-Ohm's Law 3.9. Multiple and Sub-Multiple Units 3.10. Series Circuits 3.11. Parallel Circuits 3.12. Conductor Resistance 3.13. Volt Drop in Cables 3.14. The Effect of Temperature on Resistance 3.15. Exercises4. Magnetic Fields and Materials 4.1. Permanent Magnets and Magnetic Fields 4.2. Units of Magnetic Flux 4.3. The Electromagnet 4.4. Calculations for Air-Cored Solenoids 4.5. The Effect of Iron on the Magnetic Circuit 4.6. Magnetization Curves 4.7. Iron Losses 4.8. Magnetic Materials 4.9. Exercises5. Magnetic Fields and Electric Currents 5.1. Introduction 5.2. Force on a Current-Carrying Conductor Lying in a Magnetic Field 5.3. E.m.f. Induced in a Conductor which Moves in a Magnetic Field 5.4. Static Induction 5.5. Self and Mutual Inductance 5.6. Lenz's Law 5.7. Exercises6. Power and Energy 6.1. Electrical Power and Energy 6.2. Doing IVork with Electricity 6.3. Water-Heating Calculations 6.4. Electric Water Heaters 6.5. Air Heating Calculations 6.6. Electric Air Heaters 6.7. Miscellaneous Applications of Electric Heating 6.8. Control of Electric Heaters 6.9. Exercises7. Primary and Secondary Cells 7.1. Storing Electricity 7.2. Simple Introduction to Chemical Formula 7.3. Primary Cells 7.4. Secondary Cells 7.5. Internal Resistance 7.6. Batteries 7.7. Capacity and Efficiency 7.8. Exercises8. Direct Current Machines 8.1. Introduction 8.2. Generator Principles 8.3. Motor Principles 8.4. Construction of d.c. Machines 8.5. E.m.f. and Terminal Voltage of d.c. Generators 8.6. Types of d.c. Generator 8.7. Torque and Back e.m.f of d.c. Motors 8.8. Types of d.c. Motor 8.9. Speed Control and Reversal of d.c. Motors 8.10. Starting and Protection of d.c. Motors 8.11. Exercises9. Electric Fields and Capacitors 9.1. Introduction 9.2. Electric Charges and Electric Fields 9.3. Capacitance 9.4. Dielectric Breakdown 9.5. Capacitors in Parallel and in Series 9.6. Capacitor Construction 9.7. Exercises10. Basic Alternating Current Theory 10.1. What is Alternating Current? 10.2. Advantages of a.c. Systems 10.3. Values for a.c. Supplies 10.4. Sinusoidal Wave-Forms 10.5. Vector Representation and Phase Difference 10.6. The Resistive a.c. Circuit 10.7. The Inductive a.c. Circuit 10.8. The Inductive and Resistive a.c. Series Circuit 10.9. Impedance 10.10. The Capacitive a.c. Circuit 10.11. The Capacitive and Resistive a.c. Series Circuit 10.12. The General Series Circuit 10.13. Introduction to Three-Phase Systems 10.14. Connections to Three-Phase Supplies 10.15. Three-Phase and Single-Phase Supplies 10.16. Exercises11. Power in Alternating-Current Circuits 11.1. Introduction 11.2. Power in the Resistive a.c. Circuit 11.3. Power in the Reactive a.c. Circuit 11.4. Power in the Resistive and Reactive a.c. Series Circuit 11.5. Power Factor 11.6.
