强激光与粒子束2009，Vol.21Issue(11)：1745-1749,5.
纳秒脉冲下微堆层绝缘子的真空沿面闪络特性
Surface flashover characteristics of micro-stacked insulatorsin vacuum under nanosecond pulse
摘要
Abstract
In order to satisfy application demand for high performance and miniaturization of pulsed power system, two types of micro-stacked insulators were designed and fabricated. One was fabricated from interleaved layers of brass and PI (poly-imide), the other was fabricated from stainless steel and FEP (fluorinated ethylene propylene). Based on the nanosecond (10 ns/ 30 ns) pulsed power vacuum experimental facility with Marx generator and single coaxial pulse-forming line, the vacuum surface flashover characteristics of the micro-stacked insulators were tested. To get a precise calibration of the measurement system, a magnetic pulse compression power supply with a relatively high pulse amplitude output of about 20 kV was used, and a voltage-dividing ratio of 25 133: 1 was acquired. Two types of micro-stacked insulator samples were tested respectively. The results show that flashover takes place in the rising period of voltage, and the maximal vacuum flashover field intensity of six samples is close to 180 kV/cm.关键词
脉冲功率/微堆层绝缘子/真空沿面闪络/表面形态Key words
pulsed power/ micro-stacked insulator/ vacuum surface flashover/ surface state分类
信息技术与安全科学引用本文复制引用
任成燕,张东东,袁伟群,王珏,严萍,张适昌..纳秒脉冲下微堆层绝缘子的真空沿面闪络特性[J].强激光与粒子束,2009,21(11):1745-1749,5.基金项目
国家自然科学基金项目(50607019, 50677066) （50607019, 50677066）
