Detectability analysis of open phase condition in Korea’s standard nuclear power plant

Abstract

Currently, Open Phase Condition (OPC) on nuclear power system has been reported from various countries of the world and many nuclear regulatory agencies such as NRC require establishing a protective system of the power system that automatically detects the occurrence of OPC. Therefore, it is necessary to analyze the design suitability of protection system for OPC in Korean nuclear plant also. In this paper, the OPC for Korean standard nuclear plants is conspired using power system analysis program, ETAP and the detectability of protecting relay is analyzed.