Inception of corona and rate of rise of voltage in diverging electric fields
Inception of corona and rate of rise of voltage in diverging electric fields
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DOI：
10.1049/ip-a-2.1990.0035
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发表时间：
1990-07
期刊：
影响因子：
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通讯作者：
M. Abdel-Salam;N. L. Allen
中科院分区：
文献类型：
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作者：
M. Abdel-Salam;N. L. Allen
给出了稳态电压和冲击电压下空气中电晕起始场的半经验关系式。这些都与起始电压有关，在脉冲情况下，还与电压上升速率有关。对三种不同半径的半球端杆进行了不同dV/dt冲击电压的实验，结果与理论相符。结果表明，推导出的公式为快速计算正电晕起始值提供了有用的工具。
Semi-empirical relationships are given for corona inception fields in air, under both steady and impulse voltage conditions. These have been related to inception voltages and, in the impulse case, to the rate of rise of voltage. Experiments with impulse voltages of varying dV/dt, applied to hemispherically ended rods of three different radii, show agreement with theory. It is shown that the expressions derived provide a useful tool for the quick calculation of positive corona onset.