Electrical Technology
Department of Electrical Engineering, IIT Kharagpur
Aut 2023-24
LA1b: Electricity Generation, Transmission and Distribution
Disclaimer: The content of this class is prepared based on the objective and syllabus of “Electrical
Technology”,
Electrical Technology (EE11003)
LA1b: How Electricity is generated?
• Voltage available at your home (in any socket):
– DC Vs AC, How the waveform looks like?:
– https://youtu.be/SUPmOfXbuZk
• Motor and Generator:
• What is turbine?
• Various ways to generate Electricity
Motor
Electrical Energy Mechanical Energy
Generator
Mechanical Energy Electrical Energy
Electrical and Mechanical systems coupled by a magnetic field
1
, 08-08-202
Supply Voltage and
inductor current
Grid Voltage waveform captured
from 1st year ET lab at IIT Kgp
Supply Voltage and capacitor current
2
Power Generation
(Coal fired) Thermal Power Station Nuclear Power Station
Wind Turbines Solar Photovoltaic Cells
Hydroelectric Power Station
Voltage and current stress!
3
, 08-08-202
Power Generation - Thermal
(Coal fired) Thermal Power Station
4
Power Generation - Hydroelectric
Hydroelectric Power Station
5
, 08-08-202
Power Generation - Nuclear
Nuclear Power Station
6
Single Line Representation of the System
7