人工冲击下输电线路杆塔暂态特性测试方法研究

Transient Characteristics Measurement of Transmission Line Towers Under Artificial Impacts

该文提出一种人工冲击下输电线路杆塔暂态特性测试方法,该方法采用在待测杆塔周围布置均流带,可真实模拟自然界中雷电流在地中实际的散流情况,并就均流带金属棒根数的影响、电压引线与电流引线的影响和均流带对电压信号的影响等因素进行了试验研究。最后,将测量结果与仿真计算结果进行了对比,证明了测量方法是准确可行的。

In this paper,a method for measuring the transient characteristics of transmission line towers under artificial impacts is presented.The method lays out a current-sharing zone around the tower,which can simulate the actual distribution of lightning currents in the earth.At the same time,the effects of the number of the metal rods,the voltage and current leads,and the current band on the voltage signals are studied.Finally,the measurement results are compared with the simulation results,which proves that the measurement method is accurate and feasible.