• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2011, Volume: 4, Issue: 12, Pages: 1700-1703

Original Article

Study of distance relays with fault resistance compensation for unbalanced systems


Fault resistance is a determinant quantity in distance relays. If this resistance is not considered it may cause wrong operation of relays. Moreover, unbalanced loads and non-symmetrical lines can affect a distance relay performance. In this paper we present a new algorithm to increase the accuracy and improve the efficiency of distance relays. The method proposed is based on phase coordination and utilizing from fault resistance estimation.
Keywords: Fault diagnosis, Fault resistance, Power system faults, Power system protection.


Subscribe now for latest articles and news.