CAJ | 학술논문

为满足脉冲功率系统高性能、小型化的应用需求,设计并制作了聚酰亚胺膜为介质层、黄铜为金属层及聚全氟乙丙烯膜为介质层、不锈钢膜为金属层2种方案的微堆层绝缘子.基于Marx发生器及单同轴脉冲形成线的纳秒脉冲真空实验平台,对微堆层绝缘子的真空沿面闪络性能进行了测试.为了精确标定测量系统,利用输出脉冲幅值约20 kV的磁脉冲压缩电源对测量系统进行了标定,得到的分压比为25 133:1.对2种方案微堆层试样的测试结果表明,闪络发生在电压上升期间,最大真空沿面闪络场强接近180 kV/cm.
위만족맥충공솔계통고성능、소형화적응용수구,설계병제작료취선아알막위개질층、황동위금속층급취전불을병희막위개질층、불수강막위금속층2충방안적미퇴층절연자.기우Marx발생기급단동축맥충형성선적납초맥충진공실험평태,대미퇴층절연자적진공연면섬락성능진행료측시.위료정학표정측량계통,이용수출맥충폭치약20 kV적자맥충압축전원대측량계통진행료표정,득도적분압비위25 133:1.대2충방안미퇴층시양적측시결과표명,섬락발생재전압상승기간,최대진공연면섬락장강접근180 kV/cm.
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.