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Experimental study on transient characteristics of grounding grid for substation

机译：变电站接地网瞬态特性的实验研究

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Previous work has proven that transient characteristics of a grounding grid was far more different than its performance at power frequency because of the inductance of the system and the soil ionization phenomena. In this paper, a test on a grounding grid of a 110 kV substation was conducted. Several parameters, such as waveform, peak value and injecting point of lightning, were altered to study their relationship with transient characteristics. Not only the impulse earthing resistance but also the voltage and current distribution of the conductors were analyzed. Characteristics of grounding grid between power frequency and higher frequency were compared.
机译：以前的工作已经证明，由于系统的电感和土壤电离现象，接地网格的瞬态特性远远超过其功率频率的性能。本文进行了对110kV变电站的接地网的测试。改变了几种参数，例如波形，峰值和注射点，以研究它们与瞬态特征的关系。不仅分析了导体的脉冲接地电阻，而且还进行了电压和电流分布。比较了功率频率和较高频率之间接地网格的特性。

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