임펄스전류에 의한 토양의 종류별 절연파괴 특성 분석

• 영문명: Analysis of Various Soil Breakdown Characteristics to Impulse Currents
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 김진원(Jin-Won Kim)
• 간행물 정보: 『산업기술연구논문지』산업기술교육훈련논문지 제17권 4호, 49~55쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2012.12.30

영문 초록

In this paper, impulse generator used to investigate experimentally breakdown characteristics of soil and ionization characteristics of the same applied voltage in coaxial cylinderical electrodes systems. The breakdown voltage and current form of soil type depends in dry soil, breakdown voltage-time lags characteristics is changed with particle size. In addition, at the same applied voltage, V-I curve, a transient impedance curve were measured for various soil type. As a result, among gravel, sand, silt, loess of 4 kind soils, sand shows the biggest soil ionization radius because the impedance of the soil is reduced and the loop area of sand is much bigger than that of other soil. The results presented in this paper will provide useful information on the improvement of transient performance of a grounding system subjected to lightning impulse current considering the soil ionization.

목차

Ⅰ. 서 론

Ⅱ. 실험계의 구성 및 방법

Ⅲ. 결과 고찰

Ⅳ. 결 론

키워드

W Soil Ionization(토양 이온화) V-I Curve(전압-전류 곡선) Breakdown Voltage(파괴전압) Impulse Current(충격전류) Transient Grounding Impedance(과도접지임피던스)