脉冲加载下锥角绝缘子的激光辐照沿面闪络性能  

Flashover performance of angled insulator with laser illumination under pulsed voltage

作　　者：徐乐[1] 王勐[1] 李逢[1] 杨尊[1] 康军军[1] 任靖[1] 

机构地区：[1]中国工程物理研究院流体物理研究所脉冲功率科学与技术重点实验室,四川绵阳621900

出　　处：《强激光与粒子束》2016年第5期151-154,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(50937004;51277168;51307155)

摘　　要：通过搭建脉冲加载下的激光辐照沿面闪络实验平台,考察了锥角绝缘子受激光辐照时的真空沿面闪络性能。结果表明:不论是紫外光(266nm)还是可见光(532nm)辐照在阴极三相点或者样品中间,+45°锥角绝缘子构型的性能都要优于-45°锥角绝缘子,并且紫外辐照阴极三相点对沿面闪络电压的影响较大,因此在大型脉冲功率装置中应该避免射线对绝缘堆阴极三相点处的辐照。An experiment platform of laser illumination together with pulsed voltage excitation was built.The vacuum surface flashover performance of an angled-insulator was studied.The results show that the performance of+45°insulator is better than that of-45°insulator when UV laser(266nm)or visible laser(532nm)illuminates at either the cathode triple point or the sample center.The effect of the UV laser illumination on the cathode triple point is prominent,and it is important to shield this area against UV light in the design of vacuum insulators.

关 键 词：沿面闪络 激光辐照 阴极三相点 锥角绝缘子 

分 类 号：TM835.4[电气工程—高电压与绝缘技术]