1.2MV全封闭Marx发生器的绝缘结构设计  

Insulation Design for a 1.2 MV Enclosed Marx Generator

作　　者：刘锐[1] 曾乃工[2] 王新新[1] 

机构地区：[1]清华大学电机系,北京100084 [2]中国原子能科学研究院,北京102413

出　　处：《高电压技术》2005年第4期69-70,共2页High Voltage Engineering

摘　　要：为保证封闭在体积有限容器内的1 2 MV Marx发生器可靠运行,用ANSOFT有限元计算软件计算了容器内3维电场分布,结果表明最大场强出现在末级电容器金属外壳的尖角处,其值超过绝缘介质(SF6 气体或变压器油)的耐受场强。电容器外壳安装金属屏蔽罩后,最大场强大大下降并小于绝缘介质的击穿电场。In order to ensure the safe operation of a 1.2 MV Marx generator in a grounded metallic tank of limited volume filled with pressurized SF6 gas or transformer oil, 3-D electric field in the tank is calculated using Ansoft software. The results show that the highest electric field always appears at the sharp corner of the metallic shell of the last stage capacitor and is higher than the breakdown field of the pressurized SF6 gas or transformer oil. After rounding the sharp corner by mounting a metallic hemisphere on the capacitor shell, the highest electric field is much reduced to a value that is lower than the breakdown field of the pressurized SF6 gas or transformer oil. In the end, transformer oil is chosen as insulation in the tank.

关 键 词：马克斯发生器 电场计算 绝缘设计 

分 类 号：TN782[电子电信—电路与系统]