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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
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