Analysis of Induced Voltage on Sheath of Transmission Power Cable Connected with Surge Arrester

피뢰기 적용에 따른 지중송전케이블 시스 유기전압 해석

This paper have analyzed sheath induced voltage in underground transmission cable system which will be operated with cable cover protection unit(CCPU). Simulation was carried out to analyze sheath induced voltage using on real cable system in the case with and without CCPU. Sheath induced voltage was also analyzed according to grounding method, fault resistance and fault angle. Simulation was performed using EMTP and ATP Draw, the simulation results represent whether the arrester is necessary or not in cable system.