Question

Similar conditions as in previous question. A simple 3-phase power system includes generator G, step-up transformer TX1, transmission line TL, step-down transformer TX2 and load L. All elements are rated for S = 50 MVA (3 phase).

G: series impedance 0, rated voltage 600 V (line-to-line)

TX1: series impedance Z_TX1, voltage ratio 600 V : 100 kV (line-to-line)

TL: series impedance Z_TL;

TX2: series impedance Z_TX2; voltage ratio 100 kV : 1kV (line-to-line)

L: impedance Z_L.

Per unit system is based on  S = 50 MVA and the first base voltage V_baseG = 600 V (line-to-line) at the generator. In per unit system representation, current through the entire system equals 0.32 + j0.58 per unit.

Determine current (magnitude only) in the transmission line (TL) in Amps. Express your answer as a number with one digit after decimal point (as in 123.4)

Answer 1