Subject Code: EC3L007 Subject Name: Electrical Power Transmission and Distribution L-T-P: 3-1-0 Credit: 4
Pre-requisite(s): Electrical Technology, Network Theory
Power System Network: Basic structure of power system, Transmission voltages, Bundled conductors, Choice of economics voltages, Transmission of Network in India; Line Parameters: Line resistance, Inductance, Flux Linkages within the conductor producing the flux, Flux linkage outside the conductor producing the flux, Inductance of bundled conductor lines, capacitance of two wire line, Capacitance of three phase line with equilateral spacing, Capacitance of three phase line with Unsymmetrical spacing, Capacitance of bundled conductor of lines, Double circuit three phase lines; Performance of Transmission Lines: Representation of lines, Per unit method, Short transmission line, Medium length transmission line, Long transmission line, Evaluation of ABCD parameters, Equivalent and T circuits, Application of Matrix methods, Line voltage regulation and compensation, Regulating transformer; Overhead Line Insulators: Insulator materials, Types of insulators, voltage distribution over insulator string, Improvement of string efficiency, Insulator failure, testing of insulators; Mechanical Design of Overhead Lines: General consideration, Line supports, Span conductor configuration, spacing and clearances, sag and tension calculations, Conductor vibration; Corona: The phenomenon of corona, Corona loss, Factors and conditions affecting coronal loss, Coronal in bundled conductor lines; Interference between Power and Communication Lines: Electromagnetic Induction, Electro Static induction, Reduction of interference; Underground Cables: Classification of cables, Pressurized cables, Effective conductor register, conductor inductive reactance, parameters of single core cables, Capacitance of three core belted cable; Power System Transients : Circuit closing transient, Sudden symmetrical short circuit of alternator, Recovery 12 transient due to removal of short circuit, Travelling waves on transmission lines, Wave equations, Arcing grounds, Line design based on direct strokes, Surge arrestors Insulation coordination; Extra High Voltage Transmission: Need for EHV transmission, Use of bundled conductors, Radio noise from EHV lines, Shunt compensation static-var systems, Series compensation, EHV systems in India; Distribution: Comparison of various distribution systems, voltage drop in distribution, Kelvin’s Law, General design consideration, Load estimation; Design of Transmission Lines: Choice of voltage, Selection of conductor size, Choice of span, number of circuit, conductor, configuration; Power System Earthing.

Text/Reference Books:
  1. 1. C. L. Wadhwa, Electrical Power Systems, New Age.
  2. 2. L. M. Faulkenberry and W. Coffer, Electrical Power Distribution and Transmission, PHI, 1996.
  3. 3. W. D. Stevenson, Elements of Power System analysis, McGraw Hill, 1982.