Study on the Characteristic of System Frequency Decay In Case of Large Generator Unit Outage

전원탈락에 따른 계통주파수저하문제검토 제1보

According to the construction of Seoul Thermal #5 (250MW) unit, there will be prospected several new problems on the power system operation. This paper describes the characteristic of system frequency decay during severe emergencies which result in sudden outage of such large generator unit. It also studies the factors involved in applying under frequency relays to maintan an allowable frequency level and to prevent total area collapse by automatic load shedding program.