A 3-phase, 50 Hz transmission line 100 km long delivers 20 MW at 0-9 p.f.lagging and at 110 kV. The resistance and reactance of the line per phase per km are 0-2 Q and 0-4O respectively, while capacitance admittance is 2-5 x 10 siemen/km/phase. Calculate : () thecurrent and voltage at the sending end (ii) efficiency of transmission. Use nominal T method.

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A 3-phase, 50 Hz transmission line 100 km long delivers 20 MW at 0-9 p.f. lagging and at 110 kV. The resistance and reactance of the line per phase per km are 0-2 N and 0-4 Q respectively, while capacitance admittance is 2-5 x 10° siemen/km/phase. Calculate : (f) the current and voltage at the sending end (ii) efficiency of transmission. Use nominal T method.

A 3-phase, 50 Hz transmission line 100 km long delivers 20 MW at 0-9 p.f. lagging and at 110 kV. The resistance and reactance of the line per phase per km are 0-2 N and 0-4 Q respectively, while capacitance admittance is 2-5 x 10° siemen/km/phase. Calculate : (f) the current and voltage at the sending end (ii) efficiency of transmission. Use nominal T method.

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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