Question 2
A 220 kV, 50 Hz, three phase 300 km delivers 600 MW of power at power factor of 0.8 lagging. The
line has the following parameters:
Find
r = 0.045 Ω per km
L = 0.12 mH per km
C = 0.019 µF per km
(i) the sending end voltage and current
(ii) voltage regulation
(iii) transmission efficiency