220kV线路发生死区故障时远跳对侧的应用研究

Application Research of Remote Tripping Opposite Switch for Dead-zone Fault in 220 kV Line

针对220 kV系统不配置单独的远跳装置,发生死区故障时无法利用远跳装置跳对侧开关的问题,以某变电站的220 kV系统为例,详细介绍了利用现有保护装置远跳对侧开关、快速切除故障的设计方案。实际应用表明,该220 kV系统发生死区故障时远跳对侧的相关二次回路运行状况良好,从而验证了该设计方案的正确性。

In view of problem of no remote tripper to trip opposite switch when 220 kV system appears dead-zone fault,the paper detailedly introduced design scheme of using current protection devices to trip opposite switch to clear fault quickly by taking 220 kV system of one substation as example.The actual application showed that concerned secondary circuit of remote tripping opposite switch runs well when the 220 kV system appears dead-zone fault,which validates correctness of the design scheme.