4. Power Systems and Grids
Transmission — Quiz
Test your understanding of transmission with 5 practice questions.
Practice Questions
Question 1
In the short transmission line model (length < 80 km), which parameter is typically neglected?
Question 2
In high-voltage direct current (HVDC) transmission, what is a primary advantage compared to HVAC for very long distances?
Question 3
Which effect causes alternating current in a conductor to concentrate near its surface, increasing its effective resistance?
Question 4
Calculate the surge impedance loading (SIL) of a 230 kV transmission line with characteristic impedance $Z_c = 400\,\Omega$. Give your answer in megawatts.
Question 5
Which protective device is installed on transmission lines to divert overvoltages, such as those caused by lightning, safely to ground?