General Electricity Course

Lesson 1 • Test Instruments and Measurement

Covers multimeter, clamp meter, megohmmeter, and oscilloscope use for diagnostics. Equips students with the measurement skills needed for systematic troubleshooting.

Lesson 2 • Personal Protective Equipment

Specifies PPE categories, arc flash ratings, and proper donning procedures for electrical work. Ensures students select and use protection matched to actual hazard levels.

Lesson 3 • Lockout/Tagout Procedures

Details energy isolation, lockout device application, and verification steps. Provides the procedural framework for safely de-energizing equipment before maintenance.

Lesson 4 • Systematic Fault Diagnosis

Applies half-split and cause-elimination methods to locate electrical faults efficiently. Integrates all prior knowledge into a structured, repeatable troubleshooting process.

Lesson 1 • Atomic Structure and Electric Charge

Explains how atomic particles produce electric charge and why electrons are charge carriers. Grounds all subsequent electrical theory in physical reality.

Lesson 2 • Ohm's Law and Power

Applies Ohm's Law to calculate unknown circuit values and introduces electrical power. Enables students to solve basic circuit problems numerically.

Lesson 3 • Sources of Electrical Energy

Surveys batteries, generators, and solar cells as energy sources. Distinguishes DC and AC output characteristics relevant to later circuit work.

Lesson 1 • Series Circuits

Covers current continuity and voltage division in series configurations. Builds the foundation for understanding more complex circuit topologies.

Lesson 2 • Series-Parallel Combination Circuits

Teaches systematic reduction of complex networks to equivalent circuits. Prepares students for real-world wiring layouts that mix both topologies.

Lesson 3 • DC Circuit Theorems

Presents Thevenin's and Norton's theorems for circuit simplification. Equips students with efficient methods for analyzing complex multi-source networks.

Lesson 4 • Parallel Circuits

Examines multiple current paths and current division in parallel networks. Contrasts behavior with series circuits to deepen analytical understanding.

Lesson 1 • Resistors and Resistive Devices

Covers fixed, variable, and specialty resistors including their ratings and color codes. Directly supports component selection in circuit design tasks.

Lesson 2 • Inductors and Inductance

Describes magnetic energy storage, inductance, and inductor construction. Prepares students for AC circuit behavior and transformer operation.

Lesson 3 • Transistors and Switching Devices

Covers BJT and MOSFET operation as amplifiers and switches. Establishes the component basis for control circuits addressed in later chapters.

Lesson 4 • Capacitors and Capacitance

Explains charge storage, capacitance calculation, and capacitor types. Connects to timing, filtering, and energy storage applications in later chapters.

Lesson 1 • Capacitive and Inductive Reactance

Calculates reactance for capacitors and inductors at varying frequencies. Shows how reactive components oppose AC current differently than resistors do.

Lesson 2 • Impedance and Phasor Analysis

Combines resistance and reactance into impedance using phasor diagrams. Enables complete AC circuit analysis using vector mathematics.

Lesson 3 • AC Waveform Characteristics

Defines frequency, period, amplitude, and RMS values of sinusoidal waveforms. Establishes the measurement vocabulary used throughout AC circuit analysis.

Lesson 4 • AC Power Analysis

Distinguishes real, reactive, and apparent power in AC systems. Introduces power factor as a key efficiency metric for electrical installations.

Lesson 1 • Transformer Principles

Explains mutual inductance, turns ratio, and voltage/current transformation. Provides the theoretical basis for all transformer sizing and selection tasks.

Lesson 2 • Three-Phase Power Systems

Introduces three-phase generation, wye and delta configurations, and line voltages. Establishes the framework for industrial power distribution analysis.

Lesson 3 • Power Factor Correction

Applies capacitor banks and synchronous condensers to improve power factor. Quantifies efficiency gains and cost savings from correction strategies.

Lesson 4 • Power Distribution Systems

Covers transmission lines, substations, and distribution feeders from generation to load. Connects transformer knowledge to real-world grid infrastructure.

Lesson 1 • Overcurrent Protection Devices

Explains fuses, circuit breakers, and GFCI/AFCI devices and their selection criteria. Ensures students can protect circuits against overload and fault conditions.

Lesson 2 • Conduit Systems and Raceways

Covers rigid, flexible, and nonmetallic conduit installation methods and fill calculations. Prepares students for commercial and industrial wiring environments.

Lesson 3 • Grounding and Bonding

Distinguishes equipment grounding from system grounding and explains bonding requirements. Establishes safe fault-current paths essential to all installations.

Lesson 4 • Load Calculations and Panel Design

Applies demand factors and load calculation methods to size panels and service entrances. Integrates all wiring knowledge into a complete installation plan.

Lesson 1 • Variable Frequency Drives

Explains VFD operation, parameter programming, and energy-saving applications. Addresses the dominant speed control technology in modern industrial systems.

Lesson 2 • Motor Control Circuits

Designs ladder logic control circuits using contactors, relays, and pushbuttons. Develops the schematic reading and wiring skills needed for industrial panels.

Lesson 3 • AC Induction Motor Operation

Covers rotating magnetic fields, slip, and torque-speed curves of induction motors. Connects AC theory to the most common industrial motor type.

Lesson 4 • DC Motor Principles

Explains torque production, back-EMF, and speed-torque characteristics of DC motors. Provides the foundation for understanding motor control strategies.