基于500 kV线路区外故障引发的串补旁路分析

Analysis of series compensated bypass based on 500 kV line external fault

该文在介绍串补火花间隙(GAP)自触发原理的基础上,结合某线路串补在500 k V相邻线路区外故障期间的火花间隙自触发现象,对故障期间波形进行详细分析,判断间隙自触发原因,提出解决方案,避免对设备进行过度的检查而造成高压输电线路不能在其最优的运行方式下运行,影响电力系统的稳定性。

Based on the introduction of the self triggering principle of series compensation spark gap(GAP),combined with the self triggering phenomenon of spark gap of a line series compensation during the fault outside the 500 kV adjacent line area,this paper analyzes the waveform during the fault in detail,judges the cause of gap self triggering,and puts forward some solutions suggestions to avoid excessive inspection of equipment,which resulting in the failure of high-voltage transmission line to operate under its optimal operation mode,and affects the stability of power system.