A Study of Propriety Capacity about Protection Scheme When Distribution System Interconnected with Distributed Resources

배전계통에 분산전원 연계시 보호협조측면에서 적정용량 검토

According to the second scheme of the Korean Government about technology development, utilization and popularization of new 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.