Experimental evaluation of a UHV tower model for lightning surge analysis
Experimental evaluation of a UHV tower model for lightning surge analysis
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DOI：
10.1109/61.368374
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发表时间：
1995
影响因子：
4.4
通讯作者：
Takeshi Yamada;A. Mochizuki;J. Sawada;E. Zaima;T. Kawamura;A. Ametani;M. Ishii;S. Kato
中科院分区：
文献类型：
--
作者：
Takeshi Yamada;A. Mochizuki;J. Sawada;E. Zaima;T. Kawamura;A. Ametani;M. Ishii;S. Kato
在特高压输电塔模型上进行了实验研究，用于EMTP多导体计算与相邻输电塔反闪相关的变电站雷电过电压。在实际的特高压输电塔上测量了各种雷电浪涌响应特性，并确定了多层输电塔模型的参数，该模型可以再现绝缘子串两端的电压、横担的电压和电力线的电压。确定多层塔模型各部分的浪涌阻抗值为120 /spl Ω/，该值与仅针对特高压塔测得的塔浪涌阻抗非常一致。>
An experimental investigation was performed on a UHV tower model for the EMTP multiconductor calculation of lightning overvoltage at substations associated with back-flashover at an adjacent transmission tower. The various lightning surge response characteristics were measured on an actual UHV tower, and parameters of a multistory transmission tower model that can reproduce voltages across the insulator strings, voltages of the crossarms, and voltages of the power lines were determined. A value of 120 /spl Omega/ was determined as the surge impedance at each section of the multistory tower model, which closely agreed with the tower surge impedance measured for the UHV tower alone. >