A New Approach to the Calculation or the Lightning Perrormance or Transmission Lines III-A Simplified Method: Stroke to Tower
A New Approach to the Calculation or the Lightning Perrormance or Transmission Lines III-A Simplified Method: Stroke to Tower
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输电线路雷击性能计算新方法III-A简化法：杆塔击打
DOI：
10.1109/aieepas.1960.4500810
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发表时间：
1960
期刊：
影响因子：
--
通讯作者：
A. Hileman
中科院分区：
文献类型：
--
作者：
C. Wagner;A. Hileman
1.基于电场理论的概念，提出了在杆塔接地电阻为零时，绝缘子串两端电压的简化计算方法。2.绝缘子串两端的电压由两个分量组成：（a）。由馈送到塔和地线中的租金和电荷产生的，以及（B）。产生的能量3.为了计算由馈送到塔和接地线的电流和电荷产生的电压，可以使用传统的行波理论和方法，只要使用适当的浪涌阻抗值。4.基于场论，提出了计算地线和杆塔浪涌阻抗以及导线对地互阻抗的方程。5.行波理论直接从场论发展而来，使行波理论建立在更严格的基础上。6.为了计算塔上电荷产生的电压，对于给定的冲程机构，给出了近似的简化方程。这些可以根据其他假设进行修改。7.从本文给出的例子和计算中，可以获得一些洞察力的塔的几何形状，接地线的数量，和位置的导体上的绝缘子串的电压的影响。计算了单地线AEP-OVEC 345-E10塔顶部和底部绝缘子串、双地线AEP-OVEC 345-E10塔顶部绝缘子串以及PW&P 220-E10塔绝缘子串上的电压。
1. Simplified methods of calculating the voltage across the insulator string are presented based on field-theory concepts for a stroke to the tower with zero towerfooting resistance. 2. The voltage across the insulator string is composed of two components: (a). that produced by the rent and the charge fed into the tower and ground wires, and (b). that produced by the charge above the tower. 3. To calculate the voltage produced by the current and charge fed into the tower and ground wires, conventional traveling-wave theory and methods can be used provided the proper value of surge impedances are used. 4. Equations, based on field theory, are presented to calculate the ground wire and tower surge impedances and the conductor-to-ground mutual impedances. 5. The development of travelingwave theory directly from field theory places traveling-wave theory on a more rigorous basis. 6. To calculate the voltage produced by the charge above the tower, approximate simplified equations are given for a given stroke mechanism. These can be modified for other assumptions. 7. From examples and calculations given in this paper it is possible to gain some insight on the effect of tower geometry, number of ground wires, and position of the conductor on the voltage across the insulator string. Voltages were calculateed across the top and bottom insulator strings of the single-groundwire AEP-OVEC 345-kv tower, across the top insulator string of the two-groundwire AEP-OVEC 345-kv tower, and across the insulator string on the PW&P 220-kv tower.