10kV阻容装置与避雷器过电压抑制能力试验与仿真分析

Field Test and Simulation Analysis of Overvoltage Suppression Capability for 10 kV Overvoltage Absorber and Arrester

对阻容装置和避雷器的过电压抑制能力进行校核,进行变电站并联电抗器投切试验,将10kV阻容装置和氧化锌避雷器的操作过电压防护效果对比,还对四种不同过电压防护装置配置条件下的雷电过电压响应情况进行仿真计算,得出阻容装置和氧化锌避雷器配合使用能同时降低过电压波形幅值、陡度和频率的结论。

In this paper, the overvoltage suppression ability of the resistance-capacitance device and the arrester is checked, and the switching test of the shunt reactor in substations is carried out. The operating overvoltage protection effect of the resistance-capacitance device and the arrester is compared, the lightning overvoltage response of four different overvoltage protection devices is also simulated. It is concluded that the amplitude, steepness and frequency of the overvoltage waveform can be decreased by using the resistance-capacitance device together with metal oxide arrester.