CAJ | 학술논문

基于疏导型防雷理念的新型喷射气流灭弧防雷间隙装置能快速响应雷电流,爆炸产生高速高压气流冲击波并作用于暂态发展阶段的工频续流致电弧熄灭。灭弧装置包括灭弧三硝基甲苯(Trinitrotoluene,TNT)炸药、环形接闪电极以及半封闭圆柱形灭弧室,为此,利用ANSYS AUTODYN 有限元分析软件,建立装有TNT炸药的灭弧装置半封闭爆炸冲击波数学模型,旨在研究灭弧爆炸冲击波在半封闭灭弧室内的衰减传播规律,并根据爆炸冲击波的传播特点分析空气间隙工频续流电弧在TNT爆炸冲击波作用下的可能最先切断点分布以及其对间隙电弧重燃的抑制作用。
기우소도형방뢰이념적신형분사기류멸호방뢰간극장치능쾌속향응뇌전류,폭작산생고속고압기류충격파병작용우잠태발전계단적공빈속류치전호식멸。멸호장치포괄멸호삼초기갑분(Trinitrotoluene,TNT)작약、배형접섬전겁이급반봉폐원주형멸호실,위차,이용ANSYS AUTODYN 유한원분석연건,건립장유TNT작약적멸호장치반봉폐폭작충격파수학모형,지재연구멸호폭작충격파재반봉폐멸호실내적쇠감전파규률,병근거폭작충격파적전파특점분석공기간극공빈속류전호재TNT폭작충격파작용하적가능최선절단점분포이급기대간극전호중연적억제작용。
The new-type jet stream arcing gap lightning protection device based on channel-type lightning idea is able to rap-idly respond lightning current and produce high-speed and high voltage gas shock wave resulted from explosion which may act on power-flow current in transient developing stage and cause extinguishment of electric arc.The arc-control device includes arcing TNT explosive,ring after lightning pole and semi-closed cylindrical arcing chamber.Therefore,this paper discusses establishment of mathematical model for semi-closed explosive shock wave of arc-control device by using ANSYS AUTO-DYN finite element analysis software in order to study attenuation propagation law of arcing explosive shock wave in semi-closed arcing chamber.According to propagation characteristics of explosive shock wave,it analyzes probable earliest cut point distribution of air gap power-flow current arc under the role of TNT explosive shock wave and its restriction role on re-strike of the gas arc.