真空灭弧室绝缘水平的研究与探讨-电子与通信工程专业论文.docx

ABSTRACTinterrupters, the breakdown characteristic of a interrupter is analysised again, the internal electric field is simulated and analysised, the design proposal of the insulated enclosure is concluded. And with the use of the new material of contactor and bellows and adopting the once seal-exhaust technique, the interrupte is improved.In chapter 4, emphatically through the tests of working frequency insulation and raiden impact insulation, the effect of improving with the product is verificated.In chapter 5, the thesis is summed up and some possible research directions in the future is concluded.Key words: vacuum interrupter，once seal-exhaust technique，insulation level，electric field，optimal design目录目录第一章绪论................................................................................................................. 11.1 研究背景与动机 ................................................................................................. 11.2 国内外真空灭弧室绝缘水平的研究动态 ........................................................ 11.2.1 国外研发状况 .......................................................................................... 11.2.2 国内研发状况 .......................................................................................... 21.3 本文的研究目的和方向 .................................................................................... 3第二章 理论基础 ............................................................................................................ 42.1 真空灭弧室基础知识 ........................................................................................ 42.1.1 灭弧室结构 .............................................................................................. 42.1.2 灭弧室工作原理 ...................................................................................... 62.1.3 真空开关的优点 ...................................................................................... 72.2 影响真空灭弧室耐压的因素 ............................................................................ 72.2.1 电极的几何形状 ..............