The soil ionization gradient associated with discharge of high currents into concentrated electrodes
The soil ionization gradient associated with discharge of high currents into concentrated electrodes
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DOI：
10.1109/61.311195
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发表时间：
1994-07
影响因子：
4.4
通讯作者：
A. Mousa
中科院分区：
文献类型：
--
作者：
A. Mousa
多年来，人们已经知道，当集中电极经受高电流充电时，其接地电阻下降。这有助于降低接地电位上升。电阻的大小取决于土壤电离梯度的大小。基于理论分析和大量可用测量的严格审查，本文建议对于典型土壤，E/sub o/取为300 kV/m。这明显低于一些作者使用的1000 kV/m值。图中还给出了描述在许多现场安装中使用的杆电极的行为。>
It has been known for many years that the grounding resistance of a concentrated electrode drops when it is subjected to a high current charge. This helps reduce the ground potential rise. The degree of the resistance depends on the magnitude of the ionization gradient of the soil E/sub o/. Based on both a theoretical analysis and a critical review of the large number of available measurements, this paper recommends that E/sub o/ be taken equal to 300 kV/m for typical soils. This is significantly less than the 1000 kV/m value used by some authors. Graphs are also given describing the behaviour of the rod electrodes which are used in many field installations. >