ELECTRICAL ENGINEERING KNOWLEDGE HUB

Learn Electrical Engineering. Understand. Calculate. Design.

Practical electrical engineering tutorials, calculations, solar PV guides, power system concepts, design methods, testing procedures and real-world engineering examples.

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Explore Electrical Engineering

Build your knowledge from electrical fundamentals to practical engineering applications.

Electrical Fundamentals

Voltage, current, resistance, power, energy, AC, DC and essential electrical concepts.

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Electrical Calculations

Practical formulas, worked examples, sizing calculations and engineering methods.

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Power Systems

Transformers, distribution systems, power factor, protection and grid concepts.

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Solar PV Engineering

Solar PV design, string sizing, inverters, performance, losses and system calculations.

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Electrical Design

Cable selection, protection, distribution, earthing and practical electrical design.

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Testing & Commissioning

Electrical testing procedures, commissioning methods, inspection and troubleshooting.

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ENGINEERING TOOLS

Electrical Calculations

Turn electrical engineering formulas into practical calculations.

Electrical Calculators

Explore practical electrical and engineering calculation tools.

Open Calculator

Cable Size Calculator

Estimate cable size using practical electrical design parameters.

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Voltage Drop Calculator

Calculate voltage drop for electrical cable installations.

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RENEWABLE ENERGY

Solar PV Engineering

Learn how solar photovoltaic systems are designed, calculated, installed, tested and commissioned.

  • Solar PV system fundamentals
  • PV string and inverter sizing
  • Cable and voltage-drop calculations
  • Solar PV losses and performance ratio
  • Testing and commissioning
Explore Solar PV
ENGINEERING TUTORIALS

Latest Tutorials

Practical explanations designed to make complex electrical concepts easier to understand.

FUNDAMENTALS

What Is Ohm's Law?

Learn the relationship between voltage, current and resistance with practical examples.

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CALCULATIONS

How to Calculate Electrical Power

Understand electrical power calculations for single-phase and three-phase systems.

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SOLAR PV

How Does a Solar PV System Work?

Understand how sunlight is converted into usable electrical energy.

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ABOUT THE AUTHOR

Practical Engineering Knowledge

Electrical Engineering is an educational resource created by Prasun Barua, a Senior Electrical Engineer with professional experience in renewable energy, solar PV projects, electrical design, testing and commissioning.

Learn more about the author