배전계통 접지시스템에서 뇌격전류 분류율을 계산하기 위한 회로모델

초록

This paper presents a circuit modeling for calculating the current distribution rate of lightning current on the low-voltage disrribution system using equivalent grounding impedance. The equivalent grounding impedance calculrated with the equivalent frequency of lightning current includes the transient characteristics of the low-voltage distribution system. Therefore we selected some basic cases based on typical low-voltage distribution system then we compared measure results with calculated results