Question

^{”The Rio Madeira transmission link in Brazil, with an overhead length of 2,385km, is the world’s longest power transmission line. The 600kV high-voltage direct
current (HVDC) bipolar line was brought into commercial operation in November 2013 and is capable of transmitting 7.1GW of power.”}

^{a. What is the current in this line when it is carrying maximum power?}

^{b. If the resistance of the wires in the line is about 0.6 x 10−2 ohms per kilometer, how much energy goes to heating the wires of the line when it is operating at maximum power?}

^{What percent is this of the maximum power delivered to the users?}

Answer 1

(a)

(b)