Syllabus Power Systems I - (BE04009041) Total Credits = TH / 30 Assessment Pattern and Marks Total Marks Theory Practical ESE (E) PA (M) PA / (I) PBL (I) ESE (V) 04 70 30 20 30 50 200 Sr. No. Course Content 1. Conventional Generation, Load Curves, Tariffs : Generation scenario in India and Gujarat Steam power station, Schematic arrangement of steam power station, Equipment of steam power station, Hydroelectric power station, Schematic arrangement of hydro-electric power station, Constituents of hydro-electric plants, Nuclear power station, Schematic arrangement of nuclear power station, Nuclear reactor, Gas turbine power plant, Schematic arrangement of gas turbine power plant, comparison of various power plants. Load curves, Important terms and factors, Load duration curve, Examples. Tariff, Desirable characteristics of tariff, Types of tariff, Numerical problems. (Chapter - 0) 2. Overhead Line Insulators and Mechanical Design of Overhead Transmission Lines : Insulating material, Types of insulators, String efficiency, Overhead line supports, Types of steel towers, Conductor configurations & spacings, Clearances, Sag and tension calculations for supports at equal level and unequal level with consideration of effect of ice and wind, Conductor vibrations - Resonant vibration and Galloping, Numerical problems. (Chapters - 1, 2) 3. Transmission Line Parameters : Types of line conductors, Line resistance, Inductance of a single conductor due to internal and external flux linkages, Inductance of single phase (two-wire) line, Flux linkages of one conductor in an array, Inductance of composite conductor lines, Inductance of three-phase transmission lines with equilateral spacing, Transposition of lines, Inductance of transposed line with unsymmetrical spacing, Inductance of three-phase double circuit lines. Line capacitance, Potential difference between two points due to a charge, Capacitance of single phase (two-wire) line, Capacitance of three-phase lines with symmetrical spacing, Capacitance of three-phase transposed lines with unsymmetrical spacing, Capacitance of three-phase double circuit lines, Effect of ground on the capacitance using method of images, Skin and Proximity effect, Numerical problems. (Chapter - 3) 4. Underground Cables : Construction of cables, Insulating materials of cables, Classification of cables, Pressurized cables, Effective conductor resistance and inductive reactance, Parameters of cables, Dielectric stress in single core cable, Most economical conductor size in cable, Grading of cables, Capacitance of three-core belted cables, Measurement of core to core and core to earth capacitances, Numerical problems. (Chapter - 4) 5. Distribution Systems and Power Factor Improvement : Comparison of various distribution systems, AC Distribution systems, Types of primary and secondary distribution systems, Voltage drop calculations in DC and AC distribution systems, Kelvins’ law, Power factor improvement, Power factor improvement equipment, Calculations of power factor correction, Most economical power factor, Numerical problems. (Chapters - 5, 6) 6. Substations and Power System Earthing : Classification of substations, Symbols of various equipments in substations, Bus bar arrangements, Switchyard layout of 132 kV, 220 kV and 400 kV substations, objective of power system earthing, Tolerable limits of body currents, Touch and step potential, Earthing Grid, Neutral earthing, Comparison of isolated neutral and earthed neutral systems, Types of neutral earthing. (Chapters - 7, 8)
