Statistical study of impulse corona inception parameters on line conductors
Statistical study of impulse corona inception parameters on line conductors
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DOI：
10.1049/ip-a-3.1991.0022
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发表时间：
1991-05
期刊：
影响因子：
--
通讯作者：
N. Harid;R. Waters
中科院分区：
文献类型：
--
作者：
N. Harid;R. Waters
对圆柱形截面线导体的电晕进行了室内试验，提供了双指数脉冲和振荡脉冲产生的负电晕的电荷测量和表面场数据。电荷测量表明，在标准闪电和开关脉冲形状之间的脉冲前时间，注入的电晕电荷最小。这一结果与日冕电荷的相互依赖性、日冕起始的统计滞后以及清除日冕空间电荷所需的时间有关。将临界体积理论应用于线路导体几何，模拟了时间滞后效应。利用圆柱形场滤波器进行电场测量，量化了电晕空间电荷场的减少。
Laboratory tests on corona on line conductors of cylindrical cross-section have provided charge measurements and surface field data for negative corona resulting from double-exponential and oscillatory impulses. The charge measurements show that minimum corona charge is injected for impulse front times intermediate between the standard lightning and switching impulse shapes. This result is associated with the interdependence of the corona charge and the statistical time lag of corona inception and with the time required to clear the corona space charge. Time lag effects are simulated by applying critical volume theory to line conductor geometry. The corona space-charge field reduction is quantified by the electric field measurements using a cylindrical field filter.