摘要
架空配电线路大都裸露在空中,极易遭受雷击产生雷电过电压,从而造成供电中断,影响生产和生活。长期以来对架空配电线路的研究主要集中在直击雷上,对感应雷的研究相对较少。对架空配电线路感应雷过电压幅值和波形的影响因素进行了研究。研究结果表明,雷电流的参数、线路高度、雷击点、大地电导率等参数对架空配电线路感应雷过电压的幅值和波形都有不同程度的影响。
The research on the overhead distribution lines is mainly focused on direct lightning for long time,and the research on induced lightning is rather less. This thesis researches into some factors which have an effect on the amplitudes and the wave shapes of the lightning induced overvoltages on overhead distribution lines. These factors include the parameters of lightning current, the height of the line,the position of lightning and ground conductivity.
出处
《机械制造与自动化》
2009年第6期137-138,179,共3页
Machine Building & Automation
关键词
架空配电线路
感应雷过电压
防护
overhead distribution lines
lightning induced overvoltages
prevention
