Power Systems
How electricity is generated, transmitted and distributed — from power stations to the wall socket.
A power system has three parts: generation, transmission at high voltage to reduce losses, and distribution to consumers. Supply and demand must be balanced every instant — this is reflected in the system frequency (50 Hz in India).
Sub-topics (9)
Power Generation
Thermal, hydro, nuclear, solar and wind power plants, and how they produce electricity.
Transmission Lines
High-voltage lines carry bulk power over long distances; their resistance, inductance and capacitance decide performance.
Distribution Systems
Distribution networks at 33 kV, 11 kV and 415/230 V bring power from substations to consumers.
Per-Unit System
Express quantities as fractions of chosen base values to simplify calculations across transformer voltage levels.
Load Flow Analysis
Calculate voltages, power flows and losses in a network for a given generation and load.
Fault Analysis
Calculate the huge currents that flow during short circuits, to size breakers and set protection.
Power System Stability
Whether generators stay in synchronism after disturbances — rotor angle, voltage and frequency stability.
HVDC Transmission
High-voltage direct current links carry bulk power over very long distances and connect asynchronous grids.
Smart Grids and Renewable Integration
Digital monitoring, communication and storage that let grids handle rooftop solar, EVs and demand response.
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