Investigation of lightning strokes to UHV transmission lines by improved magnetic steel rod method

2012 International Conference on High Voltage Engineering and Application Pub Date : 2012-11-26 DOI:10.1109/ICHVE.2012.6357012

A. Jiang, Z. Fu, Junfeng Li

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Abstract

Lightning strike is still an important threaten to the safety operation of UHV transmission lines. As a traditional method for lightning accident and lightning current investigation, the magnetic steel rod method had been widely used in high voltage transmission lines. Lightning rods were often raised up on transmission line towers and then the magnetic steel rods were installed around it for the purpose to get an idea environment for the installation of magnetic steel rod and relatively accurate measurement of the lightning current. For the application of the magnetic steel rod method on UHV transmission lines, this paper proposed a practical and easy method of installing the magnetic steel rods directly on the transmission towers' angle steel structures and fittings, which do not need to install lightning rods on the towers. Preliminary application results of the proposed method on the demonstrating and testing UHV transmission line is presented. The obtained datasets after one storm season was analyzed. It is shown that the proposed method is feasible.

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改进磁钢棒法对特高压输电线路雷击的研究

雷击仍然是威胁特高压输电线路安全运行的重要因素。磁钢棒法作为雷电事故和雷电电流调查的传统方法，在高压输电线路中得到了广泛的应用。通常在输电线路杆塔上架起避雷针，然后在杆塔周围安装磁钢棒，目的是为了给磁钢棒的安装提供一个理想的环境，并对雷击电流进行较为准确的测量。针对磁钢棒法在特高压输电线路上的应用，提出了一种实用简便的方法，即将磁钢棒直接安装在输电塔角钢结构及配件上，而不需要在杆塔上安装避雷针。介绍了该方法在特高压输电线路演示和测试中的初步应用结果。对一个风暴季节后获得的数据集进行了分析。结果表明，该方法是可行的。

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2012 International Conference on High Voltage Engineering and Application

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