Study About Induction Overvoltage Near The Lightning Strike

The lightning is one kind of energy what is huge and dangerous natural phenomenon. In order to reduce the harm of lightning, we must grasp the lightning action, carries on the correlation research and the experiment confirms. According to this data, we can designs the anti-radar protection device and plan the anti-radar protection project. Finally, we can adopts economical and the effective anti-radar protection.In this article, we study to the electromagnetic induction overvoltage which near by the lightning strike. Though to this study, we understand the harm of the two times lightning strike domino effects and the spatial electromagnetism energy distributed rule. Though the analysis, we has determined the protective measures of the two times lightning domino effects. We use the impact electric current occurrence machine to simulation the lightning current and measure the electromagnetic induction overvoltage of lightning space. With this data, we analyze the safety effect of impact electric current occurrence machine which can reduce the gradient of arrester and suppression the truncation wave overvoltage and reduce lines lightning invasion quadratic system component electromagnetic induction, for that we had a experimental analysis. Test shows that the lightning arrester and transformers in the residual pressure decay rate of more than 90%, so that , the secondary equipment lightning attenuation level of the arrester and a reasonable insulation coordination. Experience has shown that running, and the use of transformer greatly reduce the failure rate of lightning quadratic system. At present the technology has practical applications in a number of integrated substation automation, and has achieved good results.