Which of the following relay is used for short transmission line?
Which of the following relay is used for short transmission line?
Right Answer is:
Reactance Relay
SOLUTION
Why is Reactance Relay used for Short Transmission Line?
- In short transmission lines, the most common fault is the line to ground fault hence reactance type relay is used because more of the line can be protected at high speed.
- The line-to-ground fault also causes arcing ground and the reactance relay is practically independent of the arc resistance which may be large as compared with the line impedance.