Electrical Technician Course

Lesson 1 • Atomic Structure and Electron Flow

Explains how atomic structure drives electron movement and current. Establishes the physical basis for all subsequent circuit analysis.

Lesson 2 • Voltage, Current, and Resistance

Defines the three core electrical quantities and their units. Connects measurement concepts to practical circuit behaviour.

Lesson 3 • Basic Electrical Tools and Instruments

Introduces hand tools, multimeters, and test leads used daily by technicians. Proper tool selection and care prevent measurement errors and injuries.

Lesson 4 • Safe Work Practices and Regulations

Covers industry safety standards, permit systems, and regulatory compliance. Ensures students meet minimum safety requirements before hands-on lab work.

Lesson 1 • Parallel Circuit Principles

Examines current distribution and equivalent resistance in parallel branches. Prepares students for branch-current analysis in real wiring systems.

Lesson 2 • Series Circuit Principles

Analyses voltage drops, current, and resistance in series configurations. Builds the calculation skills needed for more complex circuit topologies.

Lesson 3 • Network Theorems for DC Circuits

Introduces Thevenin, Norton, and superposition methods for advanced circuit analysis. Enables efficient analysis of multi-source networks.

Lesson 4 • Series-Parallel Combination Circuits

Applies reduction techniques to mixed circuit configurations. Develops systematic problem-solving habits for complex wiring layouts.

Lesson 1 • Capacitors in AC Circuits

Explains capacitive reactance, charging cycles, and phase relationships. Connects capacitor behaviour to filtering and power factor correction.

Lesson 2 • RLC Circuits and Resonance

Analyses impedance, resonant frequency, and Q-factor in RLC circuits. Builds skills for tuning and troubleshooting resonant industrial circuits.

Lesson 3 • AC Waveform Characteristics

Defines frequency, period, amplitude, and phase for sinusoidal waveforms. Establishes the vocabulary and maths used in all AC analysis.

Lesson 4 • Inductors in AC Circuits

Covers inductive reactance, back-EMF, and voltage-current phase relationships. Prepares students for transformer and motor circuit analysis.

Lesson 1 • Residential and Commercial Wiring Methods

Applies wiring methods to branch circuits, feeders, and service entrances. Students plan and install complete circuits from panel to load.

Lesson 2 • Conductor Types and Sizing

Covers wire gauges, insulation ratings, and ampacity tables for conductor selection. Correct sizing prevents overheating and ensures code compliance.

Lesson 3 • Earthing and Bonding Systems

Explains equipment earthing, bonding, and earth fault protection principles. Earthing systems are critical for personnel safety and equipment protection.

Lesson 4 • Wiring Devices and Connections

Covers receptacles, switches, and terminal connection methods for reliable circuits. Proper termination technique reduces resistance and prevents failures.

Lesson 1 • Three-Phase Distribution Systems

Explains delta and wye configurations, phase relationships, and load balancing. Three-phase knowledge is essential for commercial and industrial panel work.

Lesson 2 • Power Distribution System Overview

Maps the path of power from utility source to end loads through distribution levels. Provides context for all panel and switchgear work covered in the chapter.

Lesson 3 • Panel Maintenance and Troubleshooting

Applies thermal imaging, torque verification, and breaker testing to panel maintenance. Systematic inspection extends equipment life and prevents failures.

Lesson 4 • Overcurrent Protection Devices

Covers fuses, moulded-case breakers, and RCD/AFCI devices and their selection criteria. Proper protection prevents equipment damage and fire hazards.

Lesson 1 • Power Quality Mitigation Strategies

Applies filters, surge protectors, and UPS systems to correct power quality problems. Mitigation protects sensitive equipment and improves system reliability.

Lesson 2 • Transformer Principles and Construction

Explains mutual induction, turns ratio, and core construction in power transformers. Foundational theory supports all transformer sizing and testing tasks.

Lesson 3 • Transformer Types and Applications

Covers distribution, isolation, autotransformer, and control transformer types. Matching transformer type to application ensures safe and efficient operation.

Lesson 4 • Power Quality Fundamentals

Identifies voltage sags, swells, harmonics, and transients as power quality disturbances. Power quality issues cause equipment malfunction and energy losses.

Lesson 1 • Control Circuit Design and Wiring

Designs ladder logic control circuits using contactors, relays, and pilot devices. Ladder diagrams are the standard language of industrial motor control.

Lesson 2 • AC Motor Principles and Types

Explains induction, synchronous, and single-phase motor operating principles. Motor type selection directly affects efficiency and control strategy.

Lesson 3 • Motor Starting and Protection Circuits

Covers direct-on-line, star-delta, and reduced-voltage starting methods. Proper starting limits inrush current and mechanical stress on driven equipment.

Lesson 4 • Motor Troubleshooting and Testing

Applies insulation resistance, winding continuity, and vibration tests to diagnose motor faults. Systematic testing reduces downtime and repair costs.

Lesson 1 • Test Instrument Selection and Use

Matches oscilloscopes, insulation testers, and power analysers to specific fault types. Correct instrument selection yields accurate data and safe measurements.

Lesson 2 • Wiring and Connection Fault Diagnosis

Locates open circuits, short circuits, and high-resistance connections using voltage and continuity tests. Connection faults are the most common cause of electrical failures.

Lesson 3 • Component-Level Fault Isolation

Tests capacitors, relays, contactors, and breakers to isolate failed components. Component-level diagnosis prevents unnecessary full-system replacements.

Lesson 4 • Preventive and Predictive Maintenance

Implements scheduled inspection, thermal scanning, and trend analysis to prevent failures. Proactive maintenance reduces unplanned downtime and extends equipment life.