The effective recloser and sectionalizer coordination and protection scheme when distributed resource is added in distribution system interconnected distributed resource

분산형 전원이 연계된 배전계통에 분산형 전원 추가 시 리크로저와 섹셔널아이저의 보호 협조 방안

According to the second scheme of the Korean Government about technology development, utilization and popularization of new ${\cdot}$ renewable energy, the continuous growth of distributed resources are expected. But there is a few paper about recloser and sectionalizer coordination and protection scheme in distribution system interconnected a number of distributed resources. In this paper, it is dealt with that recloser and sectionalizer coordination at the cases concerned with position among protection devices. Adding distributed resource, the problems of each case are investigated through simulation.