Question

- What happens to the value of the fault current in case of SLG fault, if fault impedance is introduced?​

Answer 1

The value of the fault current in case of SLG fault, if fault impedance is introduced:-

Explanation:

Generally, a single line-to-ground fault on a transmission line occurs when one conductor drops to the ground or comes in contact with the neutral conductor. Such types of failures may occur in power system due to many reasons like high-speed wind, falling off a tree, lightning, etc

The fault current remains same as in case of SLG fault.

The per unit current in the single line to ground fault single-phase equivalent circuit is 0.377pu