| 混合两相体对放电路径选择的影响(英文) |
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| 引用本文： | 邓鹤鸣,何正浩,王蕾.混合两相体对放电路径选择的影响(英文)[J].高电压技术,2008,34(12):2681-2686. |
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| 作者姓名： | 邓鹤鸣 何正浩 王蕾 |
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| 作者单位： | School of Environmental Science and Engineering,Huazhong University of Science and Technology |
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| 基金项目： | Project Supported by National Natural Science Foundation of China(50237010) |
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| 摘 要： | This paper investigates the development,the breakdown process,and the discharge path selection of the lightning discharges in two-phase mixtures(TPMs).13 kinds of solid-gas mixtures and 3 kinds of liquid-gas mixtures are employed to study effect of two phase mixtures on the selection of the discharge path under lightning impulses.Grain size effects are shown upon these experimental results.When the diameter of solid or liquid grains is less than about 10 μm,the discharge path does not select TPM but air.And the discharge path selects TPM when the diameter is greater than about 100 μm.And when the diameter is between about 10 μm and 100 μm,the discharge path selects TPM under negative lightning impulses,but it has a greater selection of air than TPMs under positive lightning impulses.Volume fraction and permittivity of solid/liquid can also influence the selection of the discharge path.
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| 关 键 词： | two phase mixtures discharge path selection grain size effects volume fraction permittivity |
Effect of Two Phase Mixtures on the Selection of the Discharge Path |
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| DENG He-ming,HE Zheng-hao,WANG Lei.Effect of Two Phase Mixtures on the Selection of the Discharge Path[J].High Voltage Engineering,2008,34(12):2681-2686. |
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| Authors: | DENG He-ming HE Zheng-hao WANG Lei |
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| Affiliation: | ,LI Jin(School of Environmental Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | This paper investigates the development, the breakdown process, and the discharge path selection of the lightning discharges in two-phase mixtures (TPMs). 13 kinds of solid-gas mixtures and 3 kinds of liquid-gas mixtures are employed to study effect of two phase mixtures on the selection of the discharge path under lightning impulses. Grain size effects are shown upon these experimental results. When the diameter of solid or liquid grains is less than about 10 μm, the discharge path does not select TPM but air. And the discharge path selects TPM when the diameter is greater than about 100 μm. And when the diameter is between about 10 μm and 100 μm, the discharge path selects TPM under negative lightning impulses, but it has a greater selection of air than TPMs under positive lightning impulses. Volume fraction and permittivity of solid/liquid can also influence the selection of the discharge path. |
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| Keywords: | two phase mixtures discharge path selection grain size effects volume fraction permittivity |
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