CAJ | 학술논문

介绍了二极管真空绝缘中真空沿面闪络理论、绝缘结构设计要点以及沿面闪络域值估算方法,提出二极管结构优化设计的思路和方法,通过数值计算对一种高功率二极管真空绝缘设计进行了优化,一方面降低了三相点的电场强度和绝缘体沿面电场强度,另一方面提高了绝缘体表面的沿面击穿场强,从而大大改善了二极管绝缘体的绝缘性能,延长其使用寿命.实验结果表明优化后的二极管绝缘结构满足设计指标,在正常工作电压下未发生击穿现象.
개소료이겁관진공절연중진공연면섬락이론、절연결구설계요점이급연면섬락역치고산방법,제출이겁관결구우화설계적사로화방법,통과수치계산대일충고공솔이겁관진공절연설계진행료우화,일방면강저료삼상점적전장강도화절연체연면전장강도,령일방면제고료절연체표면적연면격천장강,종이대대개선료이겁관절연체적절연성능,연장기사용수명.실험결과표명우화후적이겁관절연결구만족설계지표,재정상공작전압하미발생격천현상.
The theory on pulsed flashover of insulators surface in vacuum is introduced.The keys of diode insulation design in vacuum and the way of estimating flashover threshold are included.The method to optimize the diode insulation design in vacuum is presented.The insulation configuration is optimazed by numerical simulation,the flashover threshold is advanced and the work field of insulator surface is depressed.So the insulation capability of the diode insulator is improved greatly.The experimental results show that the flashover doesn't happen on the surface of the insulator.