【摘要】 到目前为止,滑闪模型仅用于研究棒-板间隙。作为这种模型的推广,本文研制了导线-板模型,用于预测长空气间隙的放电特性。 应用电花图技术,研究了导线-板模型的放电机理。通过模拟转换公式和转换系数,在间距16米内以及波头120～600微秒范围内,所求得的模拟值与实测值比较,误差不超过7％;同时还转换出放电电压的U型曲线。证实了利用这种模型,可以确定长空气间隙的放电特性。更多还原

【Abstract】 Within recent years, surface discharge analogy model had been developed and was recognized as a valuable method for the prediction of long air-gap discharge characteristics, but it was only limited to rod-plane air gap. A conductor-plane analogy model has been further developed in our work.By the help of Lichtenberg figure technique, two different aspects of discharge-corona streamer and gliding arc can be distinguished on the conductor-plane model.According to our experimental results, within gap lengths of 16 m for positive switching surge, the maximum errors are not more than 7% of the experimental results of actual testing.更多还原