SINGLE AND THREE-PHASE ELECTRICAL CIRCUIT BASICS.

FUNDAMENTALS OF ELECTRICITY, ELECTRICAL CIRCUIT BASICS, ELECTRICAL TEST EQUIPMENT, AND THREE-PHASE SYSTEMS.

This course was written in such a way that someone who does not have any electrical work experience will understand it. However, most people can learn something from this course even if they have previous electrical work experience or knowledge. It takes roughly one day to work through this course.

What you’ll learn

• Fundamentals of electricity / Electrical Circuit basics (Conductors/Insulators, Open/Closed Circuits, Series/Parallel Circuits)..
• Voltage, Current, Resistance, Power, and Energy explained in a manner that can be visualized..
• Direct Current and Alternating Current explained with oscilloscope graph examples..
• Frequency, Peak values, Peak-to-Peak values and RMS values explained with example of basic calculations for each type of measurement..
• Alternating Current power generation explained (Alternators, Power Stations, Transformers, Long Distance Transmission)..
• Electrical Transformers explained (Step-Up / Step-Down Transformers, Single / Three-Phase Transformers)..
• Ohm’s Law Triangle and Wheel explained with examples..
• Ohm’s Law applied to five different scenarios (1. Matched Load and Supply / 2. Over-Current / 3. Under-Current / 4. Under-Voltage / 5. Over-Voltage)..
• Power Supplies and Loads in Series explained..
• Power Supplies and Loads in Parallel explained..
• Capacitors and Capacitance explained..
• Inductors and Inductance explained..
• Capacitive and Inductive Reactance explained (Simplified)..
• Impedance explained (Simplified)..
• Single / Three-Phase transmission explained with Wye / Delta examples..
• Three-phase voltage potentials explained..
• Electrocution, Protective Earth and other safety components explained..
• Single / Three-phase circuit layouts explained..
• Earthing systems explained (TN-C, TN-CS, TN-S, TT, IT)..
• Multimeters and how to use them (Layout, AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Display Count, Accuracy, Category ratings)..
• Clamp Meters and how to use them (Layout, AC/DC Current)..
• Insulation Resistance Testers and how to use them (Layout, Normal Resistance, Insulation Resistance Testing, Capacitance Discharge, AC Voltage measurements)..
• PSC/Loop Testers and how to use them (Testing Loop Impedance, Testing Prospective Short-Circuit Current, Calculating Prospective Fault Current)..
• Earth Resistance Testers and how to use them (Layout, Testing The Earth Resistance)..
• Phase Rotation Testers and how to use them (How to determine phase rotation)..
• ELCB/Polarity Testers and how to use them (Testing the Earth Leakage trip current, Socket outlet polarity testing)..
• Three-Phase motors explained (Wye / Delta configurations)..
• Three-Phase motor and control circuits explained with several upgrades..
• Star/Delta starters explained (How to start a Three-Phase motor in two mild stages, instead of a single but more aggressive startup)..
• Single / Three-Phase motor inspections explained (External and Internal)..
• Fault Finding procedures and circuit inspection..

Course Content

• Introduction –> 1 lecture • 2min.
• Module 1. –> 14 lectures • 38min.
• Module 2 –> 30 lectures • 1hr 4min.
• Module 3 –> 6 lectures • 21min.
• Module 4 –> 11 lectures • 30min.
• Module no 5 –> 26 lectures • 59min.
• Module 6 –> 14 lectures • 34min.
• Module 7 –> 6 lectures • 21min.

Requirements

This course was written in such a way that someone who does not have any electrical work experience will understand it. However, most people can learn something from this course even if they have previous electrical work experience or knowledge. It takes roughly one day to work through this course.

By the end of this course, we will have a fair understanding of;

1. Electrical Circuit Basics.

• Voltage
• Current
• Resistance
• Power
• Energy
• Direct Current
• Alternating Current
• Series
• Parallel
• Ohm’s Law with examples
• Protective Systems

2. Single and Three-Phase Electricity.

• Single and Three-Phase power generation
• Single and Three-Phase transmission
• Single and Three-Phase circuit layouts

3. Electrical Transformers.

• Step-up Transformers
• Step-Down Transformers
• Single-Phase Transformers
• Three-Phase Transformers

4. Electrical Test Equipment and how to use them.

• Multimeters
• Clamp meters
• Insulation Resistance Testers
• PSC / Loop Testers
• Phase Rotation Testers
• ELCB / Polarity Testers
• Earth Resistance Testers

5. Single and Three-Phase motors.

• Single and Three-Phase motor control circuits
• Wye/Star and Delta configurations
• Star-Delta starters
• Single and Three-phase motor inspections. (External and internal)
• Fault Finding.

Just like this course description, the videos are short, on topic and straight to the point.

This course does not qualify you as an electrician and does not authorize you to conduct any electrical work. This course is not math intensive, but we will cover a few basic formulas. If mathematics is not your strong point, there is no shortage of online calculators that can do the calculations for you.

.

Get Tutorial