뇌임펄스전압에 의한 불평등전계에서 토양방전의 실험적 연구

초록

This paper presents experimental results about characteristics of soil discharge as a function of moisture content when the 1.2/50 ㎲ lightning impulse voltage is applied. The laboratory experiments, for this study, were carried out based on factors affecting the transient behavior in soils. As a result, the conduction current prior to ionization growth in dry soil is a little, but it in wet soil is increased with the applied voltage. The soil impedance curves show an abrupt reduction just after breakdown.