A precise fault locator algorithm with a novel realization for MV distribution feeders

In this paper, a novel and practical fault locator for radial distribution feeders is presented. The existing numerical relays of the MV panels are universally arranged in order to realize the proposed fault locator. This arrangement has been validated using an experimental set-up. The fault locator algorithm is carefully developed, modified, and intensively tested using the electromagnetic transient program (EMTP) for both phase and earth faults. Error correction of the computed fault distance via either rational or intelligent techniques is outlined. The results reveal a distinguished precision of the proposed fault locator