거리계전 보호방식의 정정 및 협조 지식의 개선

Enhanced Rules for Setting and Coordination of Distance Relays

This paper proposes the enhanced rules for setting and coordination of the relays in the distance relaying. The developed new rules to diagnose the coordination based on the system information are expected to be very helpful in the system expansion planning stage. An expert system to adopt those rules have been developed using the hybrid AI tool, NEXPERT-OBJECT.