L-L (line) voltage of the 3-phase 50 Hz 70 km transmission line is 230 kV on the receiver (demand) side, its total impedance is R = 1 Ω / phase, L = 90 mH / phase. On the demand side, the load is powered by 80 MW power and 0.85 lagging power factor. a. Calculate the line-neutral (L-N) and line-line (L-L) voltages on the production side. b. Calculate the regulation as a percentage c. Calculate the efficiency.

L-L (line) voltage of the 3-phase 50 Hz 70 km transmission line is 230 kV on the receiver (demand) side, its total impedance is R = 1 Ω / phase, L = 90 mH / phase. On the demand side, the load is powered by 80 MW power and 0.85 lagging power factor. a. Calculate the line-neutral (L-N) and line-line (L-L) voltages on the production side. b. Calculate the regulation as a percentage c. Calculate the efficiency.

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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