Modeling and Switching Overvoltage Analysis for Reclosing Analysis in Combined Transmission Systems

혼합송전계통에서 재폐로 해석을 위한 모델수립 및 개폐과전압해석

This paper describes modeling using the EMTP/ATPDraw for reclosing analysis in 154kV combined transmission systems, and analyzes switching overvoltage. Current transformer established at lead-in area and lead-out area in transmission line and circuit breaker were modeled using TACS in the EMTP/ATPDraw. And also MODELS was constructed by signal processing of the operating reclosing. The simulation was carried out the switching overvoltage according to the length of overhead and underground transmission line, overvoltage between sheath and earth, and voltage between joint boxes.