A protective coordination of HTS cable power system using EMTP-RV

초전도케이블 계통의 상정사고에 대한 보호협조 연구

This paper proposed protective coordination on HTS(High Temperature Superconducting) cable on 22.9kV distributed system. HTS cable transient model is developed and tested using EMTP-RV, system protective coordination is studied with ETAP. Possible contingency and protective scheme are considered real distribution system in Icheon substation. The simulation results was showed, in protective case to apply conventional relay, that appeared problem on HTS cable inner part. The HTS cable couldn't protection on contingency state of power system. It was using high-speed relay system instead of conventional relay system. Then, the HTS cable was protected contingency by circuit breaker.