Audel Electrical Course for Apprentices and Journeymen, All New 4th EditionISBN: 9780764542008
432 pages
April 2004

Description
As you advance from student to apprentice to journeyman status, you log a lot of study hours. Make the most of those hours with this fully updated, sharply focused selfstudy course. It contains everything you need to know about electrical theory and applications, clearly defined and logically organized, with illustrations for clarity and review questions at the end of each chapter to help you test your knowledge.
* Understand electron theory and how electricity affects matter
* Recognize applications for both alternating and direct current
* Comprehend Ohm's Law and the laws governing magnetic circuits
* Learn from detailed drawings and diagrams
* Explore trigonometry and alternative methods of calculation
* Identify instruments and measurements used in electrical applications
* Apply proper grounding and ground testing, insulation testing, and power factor correction
Table of Contents
Chapter 1: Electricity and Matter.
Elements, Atoms, Molecules, and Compounds.
Electron Theory.
Electric Current.
Insulators and Conductors.
Questions.
Chapter 2: Units and Definitions.
Fundamental and Derived Units.
Definitions.
Magnetic Units.
Temperature Units.
Questions.
Chapter 3: Electrical Symbols.
Graphic Electrical Wiring Symbols.
0.1 Drafting Practices Applicable to Graphic Electrical Wiring Symbols.
0.2 Explanation Supplementing the Schedule of Symbols.
List of Symbols.
1.0 Lighting Outlets.
2.0 Receptacle Outlets.
3.0 Switch Outlets.
4.0 Signaling System Outlets: Institutional, Commercial, and Industrial Occupancies.
5.0 Signaling System Outlets: Residential Occupancies.
6.0 Panelboards, Switchboards, and Related Equipment.
7.0 Bus Ducts and Wireways.
8.0 Remote Control Stations for Motors or Other Equipment*.
9.0 Circuiting.
10.0 Electric Distribution or Lighting System, Underground.
11.0 Electric Distribution or Lighting System Aerial.
Arrester, Lightning Arrester (Electric Surge, etc.) Gap.
Battery.
Circuit Breakers.
Circuit Return.
Coil, Magnetic Blowout*.
Contact, Electrical.
Contactor.
Machine, Rotating.
Meter Instrument.
Path, Transmission, Conductor, Cable Wiring.
Polarity Symbol.
Switch.
Transformer.
Chapter 4: Magnets and Magnetic Fields.
Magnetic Poles.
Magnetic and Nonmagnetic Substances.
The Earth as Magnet.
Magnetic Lines of Force.
Molecular Theory of Magnetism.
Strength of a Magnet.
Lifting Power of a Magnet.
Questions.
Chapter 5: Ohm’s Law.
Statement of Ohm’s Law.
Analogy of Ohm’s Law.
Illustrations of Ohm’s Law.
Ohm’s Law and Power.
The Ohm’s Law Circle.
Formulas.
Ohm’s Law.
Power in Watts.
Questions.
Chapter 6: Capacitors.
Capacitance.
Capacitance in Series and Parallel.
Capacitance in Other Than Regular Capacitors.
Formulas.
Questions.
Chapter 7: Resistance.
Skin Effect.
Conductivity.
VoltageDrop Calculation.
Measuring Conductors.
Questions.
Chapter 8: Resistance in Series and Parallel.
Resistances in Series.
Resistances in Parallel.
SeriesParallel Circuits.
Questions.
Chapter 9: Electrolysis.
Terminology.
Chemistry of Electrolysis.
Electroplating.
Corrosion.
Questions.
Chapter 10: Primary and Secondary Cells.
The Voltaic Cell.
Primary Cells.
Secondary Cells.
Questions.
Chapter 11: Electromagnetism.
Galvanoscope.
Solenoids.
Questions.
Chapter 12: Laws Governing Magnetic Circuits.
Strength of a Magnetic Pole.
Intensity of Magnetizing Force.
Magnetic Reluctance.
Formulas.
Questions.
Chapter 13: Work, Power, Energy, Torque, and Efficiency.
Torque.
Prony Brake.
Formulas.
Questions.
Chapter 14: Instruments and Measurements.
Voltmeters and Ammeters.
Edison Pendulum Ammeter.
Battery Gauge.
Indicating Wattmeter.
Ohmmeters.
Thermostats.
Thermocouples.
Questions.
Chapter 15: Insulation Testing.
Test Voltages vs. Equipment Ratings.
Cables and Conductors.
Conductors in Parallel.
Effect of Temperature on Insulation Resistance*.
Questions.
Chapter 16: Electromagnetic Induction.
Basic Principles.
Lenz's Law.
Fleming's Rule.
Mutual Induction.
Eddy Currents.
Questions.
Chapter 17: Alternating Currents.
Advantages of AC.
Generation of AC.
AC Sine Wave.
Paralleling Alternators.
Formulas.
Questions.
Chapter 18: DC Generators.
Generators vs. Alternators.
Generation of EMF.
Armatures.
Brushes.
Types of Generators.
Generator Voltage Control.
Questions.
Chapter 19: DC Motors.
Armature Movement.
DC Motors vs. DC Generators.
Regulation of DC Motors.
Starting the DC Motor.
Reversing Motor Direction.
Questions.
Chapter 20: Inductance and Reactance.
Inductance.
Inductive Reactance.
Impedance.
Effects of Circuit Inductance.
Phase Angle.
True Power and Power Factor.
Worked Examples.
Formulas.
Questions..
Chapter 21: Capacitance in AC Circuits.
Analogy of Capacitor Action.
Capacitor Action.
Capacitance.
Current and Voltage Relations.
Capacitive Reactance.
Inductive and Capacitive Circuits.
Formulas.
Questions.
Chapter 22: Resistance, Capacitance, and Inductance in Series and Parallel.
RC Circuit.
RLC Circuit.
Parallel LC Circuit.
Resonance.
System Power Factor.
Formulas.
Questions.
Chapter 23: Polyphase Circuits.
Multiphase Systems.
TwoPhase Systems.
ThreePhase Systems.
Questions.
Chapter 24: Power in Polyphase Circuits.
ThreePhase Wye Connection.
ThreePhase Delta Connection.
Economy and Phases.
Neutral Current in ThreePhase, FourWire Systems.
Formulas.
Questions.
Chapter 25: Transformer Principles.
Induction Coil.
Transformer Types.
Principles of Operation.
Windings and Voltages.
Formulas.
Questions.
Chapter 26: Transformer Facts.
Transformer Impedance.
Transformers in Parallel.
Transformer Insulation.
Types of Transformers.
Effects of Altitudes.
Ambient Temperature.
Transformer Polarity.
Termination Marking.
Formulas.
Questions.
Chapter 27: Transforming Polyphase Power.
SinglePhase for ThreePhase.
ThreePhase Transformers.
TwoPhase to ThreePhase Conversion.
Delta and WyeConnection Voltages and Currents.
Questions.
Chapter 28: Autotransformers.
Autotransformers and Conventional Transformers.
Induction Voltage Regulator.
Transformer Booster.
Questions.
Chapter 29: Instrument Transformers.
Use of Instrument Transformers.
Types of Instrument Transformers.
Potential Transformers.
Current Transformers.
Ratings.
Opening the Secondary Circuit.
Symbols.
Ground Fault Protection.
Questions.
Chapter 30: Polyphase Induction Motors.
Rotating Magnetic Field.
Squirrel Cage Rotor Winding.
Wound Rotors.
Dual Voltages.
Induction Motors on Start.
Altitude Correction.
Power Factor.
Questions.
Chapter 31: PowerFactor Correction.
Reactive KilovoltAmperes.
Use of Correction Table.
Correction with Capacitors.
Use of Chart.
Use of Mathematics.
Overloads.
Reasons for Corrections.
Questions.
Chapter 32: Synchronous Motors.
Characteristics.
Operation.
Power Factor.
Regulation.
Questions.
Chapter 33: SinglePhase Motors.
Phase Splitting.
ShadingCoil Motors.
Universal Motors.
Hysteresis Motors.
SplitPhase Induction Motor.
CapacitorStart Motors.
CapacitorStart, CapacitorRun Motor.
Repulsion Motors.
RepulsionInduction Motors.
Questions.
Chapter 34: Grounding and Ground Testing.
Grounding Requirements.
Conduction in Soil.
Grounding Electrode.
FallofPotential Method.
System Grounding.
Questions.
Chapter 35: Rectifiers.
MercuryArc Rectifier.
DryContact Rectifiers.
SolidState Rectifiers.
Rectifier Connections.
Questions.
Chapter 36: Number of Bends in Conduit.
Chapter 37: Torque Test for Bolts and Screws.
Appendix.
Index.
Author Information
Paul Rosenberg is a master electrician with extensive experience in all aspects of the industry. An instructor at Iowa State University, he has written for all the major electrical industry publications. He is also the author of Audel Questions and Answers for Electrician's Examinations, 14th Edition.
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