摘要
对本质安全电感电路 ,最小建电弧电压能反映电路的建弧特性 ,电流变化率能反映电路的电感特性。本文仅针对这两个电气量 ,对四种电弧放电模型进行了分析与比较。得到电弧放电瞬间每一模型下的电流变化率和电弧电压。分析指出 ,放电电流抛物线模型不宜描述电弧放电瞬间的变化特性。
For an inductive intrinsically safe circuit, minimum arcing voltage shows the arcing characteristics and current reducing rate shows the inductive characteristics. Such two electrical variables are thoroughly analyzed with four mathematical models. Arc current reducing rate and arc voltage at the time of arc discharging are established for every mathematical model. It draws conclusion that current parabolic attenuation model is not suitable for depicting the arc discharge characteristics.
基金
国家自然科学基金项目 (A5 0 0 770 2 2 )
