Learning track
Power Systems Fundamentals
Generation, transmission, distribution, load flow and protection — the core of power engineering.
What Is a Power System?
The big picture: generation, transmission, distribution and loads — and why voltage keeps changing along the way.
6 min readThree-Phase Power Basics
Why three phases, star vs. delta connections, and how to move between line and phase quantities.
8 min readReal, Reactive & Apparent Power
P, Q, S, the power triangle, and why power factor matters for the whole grid.
7 min readTransformers
How mutual induction transfers power between windings, three-phase connections, autotransformers, and instrument transformers (CTs/VTs).
8 min readThe Per-Unit System
Why engineers normalize every quantity to a base value, and how it makes transformers vanish from calculations.
8 min readTransmission Line Parameters
R, L, C and G — and why short, medium and long lines each need a different equivalent circuit.
7 min readIntroduction to Power Flow
Slack, PV and PQ buses, why the equations are nonlinear, and how Newton-Raphson solves them.
8 min readFaults & Protection Basics
Common fault types, why fast clearing matters, and how breakers, relays and fuses work together.
7 min read