Introduction to Power System, Load Characteristics and Economic Aspects
4 Lectures
Basic structure of power system sources of electric energy: conventional and non-conventional;
cogeneration combined heat and power captive power plants distributed generation. Commonly
used terms and factors curves useful in system operation and planning economics of power
factor improvement interconnection of power stations and tariffs.
02
Transmission Line Parameters
8 Lectures
Types of conductors Ampere’s law inductance of a conductor inductance of a single phase line
inductance of a three-phase line inductance of three-phase double circuit line bundled
conductors skin effect proximity effect Guy’s theorem Capacitance of single phase line
capacitance of a three-phase line capacitance of double circuit three phase line effect of earth on
capacitance
03
Transmission Line Performance
8 Lectures
Classification of lines models circuit constants of transmission lines: short medium and long
lines; Ferranti effect power flow through a line sending and receiving end power circle diagram
reactive power generation/absorption of line compensation and voltage control.
04
Insulators for Overhead Transmission lines and Mechanical Design of Transmission line
7 Lectures
Types of insulators ratings voltage distribution across suspension insulators string efficiency
methods to improve string efficiency. Calculation of sag and tension equivalent span length and
sag effect of ice and wind loading stringing chart sag template conductor vibrations and vibration
dampers
05
Corona and Radio interference
2 Lectures
Critical voltages corona loss advantages and disadvantages of corona factors affecting corona
loss effect of corona on line design radio interference.
06
Distribution System and Insulated Cables
7 Lectures
Effect of voltage on transmission efficiency Kelvin’s law radial and ring main distributors
interconnectors methods of feeding distributors ac distribution three-phase four wire distribution
system stepped and tapered mains. Cable conductors insulating materials insulation resistance
electrostatic stress in cables grading of cables capacitance of a three-core cable dielectric loss
dielectric power factor classification of cables cable performance.
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