EASA Module 3 - Electrical Fundamentals - Aircraft Maintenance Technician Certification Series

Electrical Fundamentals EASA Module 03 Contents Welcome Revision Log Forward Sub-Module 01 Electron Theory Knowledge Requirements Electricity And Electronics General Composition Of Matter Matter Elements Compounds Molecules Atoms Electrons, Protons, And Neutrons Electron Shells And Energy Levels Ions Free Electrons Electron Movement Conductors Insulators Semiconductors Questions Answers Sub-Module 02 Static Electricity and Conduction Knowledge Requirements Static Electricity Attractive And Repulsive Forces Units Of Charge Electrostatic Field ESD Considerations Conduction Of Electricity Questions Answers Sub-Module 03 Electrical Terminology Knowledge Requirements SI Prefixes Used For Electrical Calculations Conventional Flow And Electron Flow Conventional Flow Electromotive Force (Voltage) Current Resistance Questions Answers Sub-Module 04 Generation of Electricity Knowledge Requirements Sources of Electricity Pressure Source Chemical Source Thermal Sources Light Sources Friction Magnetism and Motion Questions Answers Sub-Module 05 DC Sources of Electricity Knowledge Requirements Batteries Primary Cell Secondary Cell Battery Ratings Life Cycle Of A Battery Lead-Acid Battery Testing Methods Lead-Acid Battery Charging Methods Nickel-Cadmium Batteries Chemistry and Construction Operation of Nickel-Cadmium Cells General Maintenance and Safety Precautions Sealed Lead Acid Batteries Thermocouples Photo-Cells Questions Answers Sub-Module 06 DC Circuits Knowledge Requirements Series DC Circuits Introduction Voltage Drops and Further Application of Ohm's Law Voltage Sources in Series Kirchhoff's Voltage Law Voltage Dividers Determining the Voltage Divider Formula Parallel DC Circuits Overview Voltage Drops Total Parallel Resistance Resistors in Parallel Two Resistors in Parallel Current Source Kirchhoff's Current Law Current Dividers Series-Parallel DC Circuits Overview Determining the Total Resistance Questions Answers Sub-Module 07 Resistance/Resistor Knowledge Requirements Ohm's Law (Resistance) Resistance of a Conductor Factors Affecting Resistance Resistance and Its Relation to Wire Sizing Circular Conductors(Wires/Cables) Rectangular Conductors(Bus Bars) Types of Resistors Fixed Resistor Carbon Composition Resistor Ratings Wire Wound Variable Resistors Rheostat Potentiometer Linear Potentiometers Tapered Potentiometers Thermistors PhotoConductive Cells Wheatstone Bridge Questions Answers Sub-Module 08 Power Knowledge Requirements Power and Energy Power in an Electrical Circuit Power Formulas Used in the Study of Electricity Power in a Series and Parallel Circuit Energy in an Electrical Circuit Questions Answers Sub-Module 09 Capacitance/Capacitor Knowledge Requirements Capacitance Capacitors in Direct Current The RC Time Constant Units of Capacitance Voltage Rating of a Capacitor Factors Affecting Capacitance Types of Capacitors Fixed Capacitors Mica Capacitors Ceramic Electrolytic Tantalum Polyester Film Oil Capacitors Variable Capacitors Trimmers Varactors Capacitors in Series Capacitors in Parallel Capacitors in Alternating Current Capacitive Reactance Xc Capacitive Reactances in Series and in Parallel Phase of Current and Voltage in Reactive Circuits Testing Capacitors Questions Answers Sub-Module 10 Magnetism Knowledge Requirements Magnetism Magnetic Properties and the Hysteresis Loop Eddy Currents Types of Magnets Care and Storage of Magnets Electromagnetism Questions Answers Sub-Module 11 Inductance/Inductor Knowledge Requirements Inductance Characteristics of Inductance The RL Time Constant Physical Parameters Self-Inductance Mutual Induction Types of Inductors Units of Inductance Inductors in Series Inductors in Parallel Inductive Reactance Questions Answers Sub-Module 12 DC Motor/Generator Theory Knowledge Requirements DC Generators and Controls Generators Armature Reaction Compensating Windings Interpoles Armature Resistance Construction Features of DC Generators Field Frame Armature Gramme-Ring Armature Drum-Type Armature Commutators Types of DC generators Series Wound DC Generators Parallel (Shunt) Wound DC Generators Compound Wound DC Generators Generator Ratings DC Generator Maintenance DC Motors Force between Parallel Conductors Developing Torque Basic DC Motor DC Motor Construction Armature Assembly Field Assembly Brush Assembly End Frame Types of DC Motors Series DC Motor Shunt DC Motor Compound DC Motor Counter Electromotive Force (EMF) Types of Duty Reversing Motor Direction Motor Speed Energy Losses in DC Motors Inspection And Maintenance Of DC Motors Electric Starting Systems And Starter Generator Starting System Troubleshooting a Starter Generator Starting System Questions Answers Sub-Module 13 AC Theory Knowledge Requirements Alternating Current and Voltage Generator Principles Generators of Alternating Current Cycle Defined Frequency Defined Period Defined Wavelength Defined Phase Relationships In Phase Condition Out of Phase Condition Values of Alternating Current Instantaneous Value Peak Value Effective Value Triangular/Square Waves Questions Answers Sub-Module 14 Resistive (R), Capacitive (C) and Inductive (L) Circuits Knowledge Requirements AC Circuits Ohm's Law for AC Circuits Series AC Circuits Parallel AC Circuits Resonance Power in AC Circuits True Power Defined Apparent Power Defined Questions Answers Sub-Module 15 Transformers Knowledge Requirements Transformers Current Transformers Transformer Losses Core Losses Copper Losses Transformer Action Power in Transformers Power Calculations Questions Answers Sub-Module 16 Filters Knowledge Requirements Filtering Filtering Characteristics of Capacitors Filtering Characteristics of Inductors Common Filter Configurations Basic LC Filters Low-Pass Filter High-Pass Filter Band-Pass Filter Band-Stop Filter Questions Answers Sub-Module 17 AC Generators Knowledge Requirements Alternators Alternators & Classifications Method of Excitation Number of Phases Armature or Field Rotation Single Phase Alternator Two Phase Alternator Three Phase Alternator Wye Connection (Three Phase) Delta Connection (Three Phase) Alternator Rectifier Unit Brushless Alternator Alternator Rating Alternator Frequency Alternator Maintenance Regulation of Generator Voltage Voltage Regulation with a Vibrating-Type Regulator Three Unit Regulators Differential Relay Switch Overvoltage and Field Control Relays Generator Control Units (GCU) Voltage Regulation Overvoltage Protection Parallel Generator Operations Over-Excitation Protection Differential Voltage Reverse Current Sensing Alternator Constant Speed Drive System Hydraulic Transmission Voltage Regulation of Alternators Alternator Transistorized Regulators Inverters Rotary Inverters Permanent Magnet Rotary Inverter Inductor-Type Rotary Inverter Static Inverters Questions Answers Sub-Module 18 AC Motors Knowledge Requirements AC Motors Types of AC Motors Three Phase Induction Motor Rotating Magnetic Field Construction of Induction Motor Induction Motor Slip Single Phase Induction Motor Shaded Pole Induction Motor Split Phase Motor Capacitor Start Motor Direction of Rotation of Induction Motors Synchronous Motor AC Series Motor Maintenance of AC Motors Questions Answers Acronym Index Index