6. A3-phase, 50 Hz overhead transmission line, 100 km long, 110 kV between the lines at the receiving end has the following constants: Resistance per km per phase = 0-153 2 Inductance per km per phase = 1-21 mH Capacitance per km per phase = 0-00958 µF The line supplies a load of 20,000 kW at 0-9 power factor lagging. Calculate using nominal a representation, the sending end voltage, current, power factor, regulation and the efficiency of the line. Neglect leakage. [115-645 kV (line voltage) : 109 -16-68° A ; 0-923 lag ; 5-13 %; 97-21 %]

6. A3-phase, 50 Hz overhead transmission line, 100 km long, 110 kV between the lines at the receiving end has the following constants: Resistance per km per phase = 0-153 2 Inductance per km per phase = 1-21 mH Capacitance per km per phase = 0-00958 µF The line supplies a load of 20,000 kW at 0-9 power factor lagging. Calculate using nominal a representation, the sending end voltage, current, power factor, regulation and the efficiency of the line. Neglect leakage. [115-645 kV (line voltage) : 109 -16-68° A ; 0-923 lag ; 5-13 %; 97-21 %]

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter5: Transmission Lines: Steady-state Operation

Section: Chapter Questions

Problem 5.25P

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