±100 kV三电极场畸变气体火花开关

High Power Laser and Particle Beams(2012)

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Abstract
设计了一种用于直线变压器驱动源的三电极场畸变气体火花开关。开关采用SF6气体绝缘,开关尺寸和电感较小,实测开关电感约为67nH。在工作电压±80kV、工作系数为70%时,开关触发时延为40.0ns,抖动约2.8ns。对比研究了钨铜合金和黄铜两种电极材料对开关静态和触发击穿特性的影响,研究结果表明:铜钨合金电极开关的自击穿电压分散性、触发时延及抖动、自放电概率和电极表面烧蚀均小于黄铜电极,更适宜作为三电极场畸变开关的电极材料。
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Key words
Electrode erosion,Fast pulse linear transformer driver,Gas spark switch,Three-electrode field-distortion,Trigger delay
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