JNTUH B.Tech 4th year (4-2) EHV AC Transmission gives you detail information of EHV AC Transmission (Elective – IV) R13 syllabus It will be help full to understand you complete curriculum of the year.<\/p>\n
Objective<\/strong><\/p>\n This course introduces the concepts of extra high voltage AC transmission. It also emphasis on the behavior of the line parameters for extra high voltages, voltage gradients of the transmission line conductors gradients, the effect of corona, electrostatic filed calculations, travelling wave theory concept, voltage control when the line carries extra high voltages.<\/p>\n UNIT \u2014 I<\/strong><\/p>\n Introduction : Necessity of EHV AC transmission \u2014 advantages and problems\u2014power handling capacity and line losses- mechanical considerations \u2014 resistance of conductors \u2014 properties of bundled conductors \u2014 bundle spacing and bundle radius- Examples. Line and ground reactive parameters: Line inductance and capacitances \u2014 sequence inductances and capacitances \u2014 modes of propagation \u2014 ground return \u2014 Examples<\/p>\n UNIT \u2014 II<\/strong><\/p>\n Voltage Gradients of Conductors: Electrostatics \u2014 field of sphere gap \u2014 held of line changes and properties \u2014 charge \u2014 potential relations for multi- conductors \u2014 surface voltage gradient on conductors \u2014 distribution of voltage gradient on sub-conductors of bundle \u2014 Examples.<\/p>\n UNIT \u2014 III<\/strong><\/p>\n Corona Effects: Power loss and audible noise (AN) \u2014 corona loss formulae \u2014 charge voltage diagram \u2014 generation, characteristics – limits and measurements of AN \u2014 relation between 1-phase and 3-phase AN levels \u2014 Examples. Radio interference (RI) – corona pulses generation, properties, limits \u2014 frequency spectrum \u2014 modes of propagation \u2014 excitation function \u2014 \u2018measurement of RI, RIV and excitation functions \u2014 Examples.<\/p>\n