Introduction to Electrical Power

This course provides a broad overview of Electric Power Engineering, beginning with the historical evolution of AC and DC systems. It introduces the fundamental electrical parameters and explores both analog and digital measurement techniques. Key components of the power system—Generation, Transmission, and Distribution—are briefly explained, offering a foundational understanding of the GTD framework. The module concludes with a discussion on the basic laws that govern the operation of electrical power equipment.

IINR 2500/-

IINR 2000/-

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Introduction to Electric Power

Introductory Module: Electric Power Engineering

This module offers a foundational understanding of Electric Power Engineering. In this module, you will learn:

1. Foundations of Power Systems

Historical evolution of the electric power grid, including the War of Currents (AC vs. DC)
Definition and significance of frequency and RMS values
Voltage-current relationships in R, L, and C circuits
Concepts of real, reactive, and apparent power in single-phase and three- phase systems o Power factor, power triangle, and related numerical examples for conceptual clarity

2. Power Measurement Techniques

Analog measurement method of Power in AC systems
Conceptual differences in interpreting real and reactive power
Digital measurement of frequency, RMS, and power using sampled values
Impact of harmonics on power measurement accuracy

3. Overview of Power System Components (Generation, Transmission, Distribution - GTD)

Generators: Basics of steam, hydro, gas, wind turbine generators, and solar PV arrays
Transformers: Step-up transformers at generation stations, step-down transformers at load centers, interconnecting transformers (ICTs) in EHV networks, and distribution transformers
Overhead Lines: EHV voltage levels, power transfer capacities, and key components (conductors, insulators, steel towers)
Cables: Comparison with overhead lines in terms of Right-of-Way (ROW); components of EHV, MV, and LV cables (conductors, insulation, sheath/armor)
Switchgear: Behavior of voltage and current during faults; protective devices for isolating fault like isolators, HRC fuses, Circuit Breakers and interrupting media (SF6, Vacuum, Air)
Loads:

Rotating: Induction motors, limitation of speed control in conventional application, use of VFDs and V/F control for changing speed of induction motor.
Static: Lighting (incandescent, CFL, HPSV, HPMV, LED), household appliances, HVAC, EV charging stations

Protection Systems: Instrument transformers (CTs and PTs), relays, and Control & Relay Panels (CRPs)

4. Fundamental Laws and Concepts

Ohm’s Law, Kirchhoff’s Current and Voltage Laws (KCL & KVL)
Ampere-Turns (AT) balance and Volts-per-Turn (V/T) principles in transformers
Constant flux operation in electrical machines o Transient behavior during reactor and capacitor switching

Duration: 4 Hours.

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