110kV线路故障引起跳闸分析

Analysis on Tripping Caused by a Failure in 110kV Line

针对一次因线路故障,小电源未及时切除导致反送电,引起主变各侧跳闸的事故,分析探讨小电源并网对电力系统的运行方式及继电保护配置设置的影响,并以此提出改进技术措施和管理建议。

In allusion to a trip on both sides of the main transformer caused by the reverse power transmission due to the failure of small power supply to be disconnected in time because of a line fault, analyses are conducted for the influence of small power supply connected into power grid on the operation mode of power system and the configuration of relay protection, and measures and management suggestions for technical improvement are put forward.