风偏闪络故障分析及绝缘防护结构的应用

Analysis of Windage Yaw Flashover Fault and Application of Insulating Protective Structure

风偏闪络是导致输电线路跳闸故障的主要原因之一,结合东莞本地故障事例,详细介绍了风偏闪络的故障类型,并对风偏闪络的原因进行了阐述,同时讨论了当前风偏闪络的防护研究。基于导线与邻近物体间的电场仿真结果,通过绝缘杆和绝缘子的有效组合,设计了防止风偏闪络的简易绝缘结构——绝缘挡板和绝缘间隔棒,并在实际工作中得到一定的应用。

Windage yaw flashover is one of the main causes of transmission line tripping fault.Based on the local fault cases in Dongguan,the fault types of windage yaw flashover are introduced in detail,the causes of windage yaw flashover are expounded,and the current protection research of windage yaw flashover is discussed.Based on the electric field simulation results between conducting wire and adjacent objects,through the effective combination of insulating rods and insulators,a simple insulating structure including insulating baffle and insulating spacer is designed to prevent windage yaw flashover,and has been applied in practical work.