A Study on the Field Test for Surge Analysis in Underground Distribution Systems

지중배전선로 서지해석의 실증적 연구

This paper describes the modelling techniques for surge analysis in underground distribution systems with power cables. To evaluate the Analysis model, the change of line model and permittivity is considered. power cable parameters calculated by LCC of EMTP are considered to evaluate surge model in underground distribution systems. It is evaluated that impulse model according to the shape of impulse source model. However it is confirmed through comparison with measurement value in field test of underground distribution systems.