论文部分内容阅读
针对芹山水电站自投产以来 ,厂房区设备多次遭雷击损坏 ,直接影响电站设备的正常运行 ,进行了分析 ,认为其遭受雷击的两个主要原因是雷电电磁脉冲对主控制室的影响和浪涌电压的影响 ,由此提出适合水电站主控制室雷电电磁脉冲的防护设计思想 :①分流 (D) ,②屏蔽 (S) ,③搭接 (B) ,④接地 (G) ,⑤保护 (P) (简称D .S .B .G .P系统技术 ) ,主控制室的电磁屏蔽是重要的防护措施。并对浪涌电压做了具体防护措施 ,通过试验测量证明防护效果显著
Since Qinshan Hydropower Station has been put into operation for a long time, the equipment in the plant area has been damaged by lightning several times, which directly affects the normal operation of power station equipment. The two main reasons for the lightning strike are the influence of lightning electromagnetic pulses on the main control room and the waves Grounded (G), ⑤protected (P), shielded (S), ⑶ ground (G), ⑤ protected (P) ) (Referred to as D.S.B.G.P system technology), the main control room electromagnetic shielding is an important protective measures. And the surge voltage to do a specific protective measures, test results show that the protective effect is significant