SINGLE AND THREE-PHASE ELECTRICAL CIRCUIT BASICS. A to Z
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.
- House hold wiring basics.
- There are no requirements for this course, this course was designed to explain electricity and electrical systems in such a way that someone who does not have any electrical work experience will understand it. 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.
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.
Ohm's Law with examples
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.
4. Electrical Test Equipment and how to use them.
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
Single and Three-phase motor inspections. (External and internal)
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.
Who this course is for:
- Anyone who wants to learn more about Single / Three-Phase electricity in general.
- Anyone who wants to learn more about Single / Three-Phase transformers. (Step-Up, Step-Down)
- Anyone who wants to learn how Single / Three-Phase motor circuits work.
- Anyone who wants to learn more about Single / Three-Phase Induction Motors and how to inspect them.
- Anyone who wants to learn how to use electrical test equipment. (Multimeters, Clamp Meters, Insulation Resistance Testers, PSC/Loop Testers, Phase Rotation Testers, ELCB/Polarity Testers, Earth Resistance Testers)
- Anyone who struggles to understand the difference between Voltage, Current, Resistance, Power and Energy.
- Anyone who struggles to understand the difference between Direct Current and Alternating Current.
- Anyone who struggles to understand Three-Phase Voltage Potentials.
- Anyone who struggles to understand the difference between Wye and Delta configurations.
- Anyone who want's to know why transformers only work with AC electricity and why we mainly transmit AC electricity over long distances.
- Electrical engineers
- Electrical designers
- Industrial workers
My courses are short, clear and straight to the point.
I have over 10 years work experience as an electro-mechanical service technician. I am also an expert on high pressure gasses, hydraulic systems and variable frequency drives.
What takes most people 10 minutes to explain, I can do in less than 2 minutes.