接地电阻对放电击中点影响的试验研究  

The Experimental Study on Ground Resistance Affecting Discharge Striking Points

作　　者：钱冠军[1] 王晓瑜[1] 徐先芝 汪雁[1] 

机构地区：[1]华中理工大学电力工程系

出　　处：《华中理工大学学报》1998年第9期68-70,共3页Journal of Huazhong University of Science and Technology

基　　金：国家自然科学基金

摘　　要：采用对比性试验，研究了接地电阻对火花放电击中点的影响．试验结果和观测均表明，接地电阻能抑制从接地端产生的迎面放电的发展速度和通道强度，从而使其被击中概率下降，负极性比正极性下接地电阻对火花放电击中点的影响要显著得多．The effect of ground resistance on discharge striking points has been studied by the contrast experiments. The phenomena and results show that the ground resistance can restrain the velocity and the strength of upward discharge, which will reduce the striking probability. The effect of ground resistance with negative polarity on discharge striking point is more sensitive than with positive polarity.

关 键 词：放电击中点 接地电阻 正极性 负极性 雷击 

分 类 号：TM862[电气工程—高电压与绝缘技术]