| 自磁场下绝缘子沿面闪络特征 |
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| 引用本文： | 李逢,王勐,杨尊,任靖,康军军.自磁场下绝缘子沿面闪络特征[J].强激光与粒子束,2012,24(12):2925-2929. |
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| 作者姓名： | 李逢 王勐 杨尊 任靖 康军军 |
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| 作者单位： | 1.中国工程物理研究院 流体物理研究所, 四川 绵阳 621 900 |
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| 基金项目： | 国家自然科学基金项目(50937004) |
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| 摘 要： | 基于磁场闪络抑制原理，研究回路电流产生的自磁场效应对固体材料绝缘性能的影响。通过计算电场强度与磁感应强度的临界比值，设计了同轴电极结构，确定了满足闪络抑制判据的电极尺寸，开展自磁场闪络抑制实验、自磁场闪络促进实验以及无磁场绝缘闪络实验，对比三种条件下绝缘材料的沿面闪络规律，分析磁场位形对材料绝缘特性的影响情况。实验结果表明:绝缘样品在自磁场闪络抑制效应影响下闪络电压提高了约15%，在自磁场促进闪络效应下闪络电压降低了约18%。
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| 关 键 词： | 绝缘 沿面闪络 自磁场闪络抑制 回路电流 |
| 收稿时间： | 2012/4/6 |
Surface flashover character of insulator in vacuum under self-magnetic field |
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| Affiliation: | 1.Institute of Fluid Physics,CAEP,P.O.Box 919-108,Mianyang 621900,China |
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| Abstract: | The surface flashover character of insulator in vacuum under self-magnetic field is investigated in this paper through the principle of magnetic flashover inhibition (MFI). Considering the calculation of the critical ratio between electric and magnetic field, a coaxial electrode was designed to carry out experiments under three different conditions: the self-magnetic field flashover inhibition, the self-magnetic field flashover acceleration and none magnetic field. The results show that the insulator surface flashover voltage is improved about 15% with the self-magnetic field flashover inhibition and is reduced about 18% with the self-magnetic field flashover enhancement compared with that without magnetic field. |
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| Keywords: | insulator surface flashover self-magnetic flashover inhibition circuit current |
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