hey, looking for some way to figure out the answer to this problem. but a source to learn it or an explained answer would be greatly appreciated. " - A simple single phase impedance relay is set for Z=(R-1)^2 + (X-2)^2 = 4. It protects 2 lines. The first line has an impedance of Z =.5 +j2. The second line (in series) has an impedance of Z = 1 + j3. What percentage of the second line is protected. Draw the R-X diagram and use it to illustrate your solution. .
Any help is appreciated, and also I'm a Technologist trying to learn protective relaying and stumbled across this.