eng

1. MIRPUR UNIVERSITY OF SCIENCE AND TECHNOLOGY (MUST), MIRPUR
DEPARMENT OF ELECTRICAL ENGINEERING

2. POWER SYSTEM ANALYSIS
EE-365310
Lecture No. 01: INTRODUCTION
Engr. Mirza Ateeq Ahmed Baig
Assistant Professor
Date: ----------

3. Importance of Electrical Energy
 Convenient form
 Easy control
 Greater flexibility
 Cheapness
 Cleanliness
 High transmission efficiency
Power System Analysis 3

4. What is Power System?
• A system dedicated to the business of electric power:
• Generation (Production)
• Transmission (Transportation)
• Distribution (Retailing)
• A system that provides a vital service to the society and should be operated with
the goal of achieving:
• Highest reliability standards
• Minimum environmental impacts
• Lowest operation cost
Power System Analysis 4

5. Electrical Power System
• Generation – 11 to 23 kV
• Transmission – 66 to 500 kV
o Sub transmission – 33 kV to 132 kV
• Distribution
o Primary feeders – 11 kV
o Secondary feeders – 230 V/415 V
Power System Analysis 5

6. Electrical Power System Components
Power System Analysis 6

7. Power Generation
Power System Analysis 7
 Takes place in geographically dispersed power plants
 Power plants normally house multiple generating units
 Generating units can operate based on different:
• Energy Sources
• Energy Conversion processes

8. Sources of Energy
Power System Analysis 8
 Hydrocarbones (oil, coal, natural gas, etc.)
 Water
 Nuclear
 Wind
 Solar
 Tidal
 Chemical

9. Comparison of Sources of Energy
Power System Analysis 9

10. Power Transmission
Power System Analysis 10
• Transmission networks are needed to :
• Connect generating plants to consumption points
• Create large power pools for increased reliability
• High voltage AC transmission offers:
• Higher transmission capacity / Km
• Lower line-voltage drop / Km
• Lower transmission losses / MW transfer
• Reduced right-of-way requirement / MW transfer
• Lower capital and operating costs / MW transfer

11. Power System distribution
Power System Analysis 11
 Receives electrical energy from the HV/MV levels at
• bulk power delivery points
 Supplies energy to customers:
• At standard voltage levels
• Single phase and/or three-phase
 Is made up of the following main equipment:
• Distribution transformers (DXF)
• Feeder sections (including underground cables)
• Switches, fuses, reclosures
• Automatic load transfers
• Etc.

12. Power System distribution
Power System Analysis 12

13. Why do we Study Power System
Power System Analysis 13
 Power System are among the most important components of infrastructure of a
modern society.
 We depend on a very high level of electrical reliability.
 Power System are among the most complex man-made engineering systems.
 In Power System study various field of science are involve as well as economics.

14. THANKS