Protection of high voltage power lines using a three-zone protection distance relay

Protection of high voltage power lines using a three-zone protection distance relay.

If you want to avoid potential errors, you need to adjust the distance. Zone 3 does not exceed any of the following values

A. Emergency Loading Impedance
B. The impedance of the next transmission line, the longest line
C. Arc Resistance
D. Underreach

Show Answer

Answer: A

Share your understanding of this question with the correct explanation.