ELE101/102
Basic Electrical Technology
Course Instructor
Pramod Antony D’Sa
Asst. Prof., Dept. of E&E, MIT Manipal
email: pramod.dsa@manipal.edu
Course Overview
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Course content
• Overview of Electrical Power System
• Analysis of Electric Circuits
• Analysis of Magnetic Circuits
• Introduction to Electrical Machinery
• Electrical Measuring Instruments
References
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•
•
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Hughes E., Electrical and Electronic Technology, Pearson
Nagasarkar & Sukhija, Basic Electrical Engineering, OUP
Kothari & Nagrath, Basic Electrical Engineering, TMH
D C Kulshreshtha, Basic Electrical Engineering, TMH
Dept. of E&E, MIT Manipal
ELE 101/102
L1-2
1. Electric Power Systems
Dept. of E&E, MIT Manipal
ELE 101/102
L1-3
Lecture #1
 Outline
• Overview of Electric Power System
 Reading
• Chapter 11 of Reference 2
• Chapter 15 of Reference 3
Dept. of E&E, MIT Manipal
ELE 101/102
L1-4
Electric Power System
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Branch of Electrical Engineering which deals
with the Technology of Generation,
Transmission and Distribution of
Electrical Energy
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Pearl Street Station in New York City, 1882
• “Illuminating Companies” by Thomas A.
Edison
• DC Power
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Three phase AC Power System, 1896
• 2 Generators & Transmission line
@ 25 Hz
Dept. of E&E, MIT Manipal
ELE 101/102
Thomas A. Edison
(1847-1931)
L1-5
Three Phase AC Supply
B
N
R
Y
B
R
t
Y
VL  3 Vph
Dept. of E&E, MIT Manipal
ELE 101/102
L1-6
Power System Components
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Generation subsystem
Transmission subsystem
Sub-transmission subsystem
Distribution subsystem
Protection & Control subsystem
Most complex man made system!
Dept. of E&E, MIT Manipal
ELE 101/102
L1-7
Power System Structure
GENERATION
3 Phase, 50 Hz
11 kV to 22 kV
TO OTHER
POOL MEMBER
TO OTHER
POOL MEMBER
EHV AC: 765 kV, 400 kV
HV AC: 220 kV
HVDC:  500 kV
TRANSMISSION
NETWORK
Very large
Customers
SUB TRANSMISSION
NETWORK
132 kV, 110 kV,
66 kV, 33 kV
Large
Customers
Primary 11 kV
DISTRIBUTION
NETWORK
Secondary 415 V
Medium
Customers
Small Customers
(3 Phase 415 V/ 1 Phase, 240 V)
Dept. of E&E, MIT Manipal
ELE 101/102
Courtesy: Olle I Elgerd
L1-8
Summary
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Power System deals with Generation, Transmission &
Distribution of Electric Energy
Bulk Power Generation is 3 Phase AC @ 11 kV to 22 kV
Transmission Networks – EHV AC or HVDC
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AC Sub-Transmission Networks
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Distribution Network
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Protection & Control
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Substations
• Operates @ 765 kV/ 400 kV/ 220 kV AC or  500 kV DC
• Operates @ 132 kV/ 110 kV/ 66 kV/ 33 KV
• Primary side: 11 kV & Secondary side: 415 V, 4 wire
• Relays, Switchgears
• Control room & Switchyard
Dept. of E&E, MIT Manipal
ELE 101/102
L1-9