雷电诱导爆炸气流灭弧防雷装置原理研究与应用

Research and Application of Lightning Induced Arc Extinguishing Lightning Protection Device

针对现有防雷措施存在的诸多瓶颈问题,本文研发了10k V^220k V电压等级的爆炸气流灭弧防雷间隙装置。装置通过了西安电器研究所的10k A大电流灭弧试验,并应用于各电网的输电系统防雷保护领域,取得了良好的防雷效果,防雷指标表现优异:多雷地区线路耐雷水平10倍以上,雷击跳闸率趋零。

In allusion to serious situation that the high proportion of faults caused by lightning stroke in power grid transmission line,this text have developed Arc-extinguishing Lightning Protection Gap which do apply to 10 k V ~ 220 k V overhead transmission lines. The installation has passed the 10 k A large current arcing test in Xi’an High Voltage Apparatus Research Institute,and applied to the power grid transmission in lightning protection area. A good lightning protection effect is obtained and lightning protection indicators are outstanding：Lightning resisting level of dore area line more than5 times of the original level,lightning trip-out rate is zero.