고장조건에 따른 지중송배전계통에서 공통접지의 영향 분석

The Effects of Common Ground according to Fault Conditions in The Underground Transmission and Distribution System

This paper describes that the effect on the other system is generated by the single line to ground fault of the underground transmission systems and distribution systems established the common ground in trefoil. Each system is modeled by EMTP/ATPDraw and the system carry out simulations according to the various values of common ground to analyse. In this study, the result of analysis based on simulation suggests protection method and ground system of each system.