一起500kV线路光纤保护通道异常的分析

Analysis of Abnormal a 500kV Line Fiber Protected Channel

光纤纵联保护电路具有反应灵敏快捷、选择性强和动作可靠等优点,因此其在电力系统保护电路中获得了较为广泛的应用。由于实际运用过程中通道容易出现中断或者告警,严重影响电网的安全稳定运行,本文通过对一起500kV线路保护光纤通道异常情况的分析,提出了通道异常的处理方法,为类似的异常处理提供了参考及借鉴。

The optical fiber longitudinal protection circuit was widely used in power system protection circuits,as it has many advantages such as quick response,strong selectivity and reliable operation.During the actual operation,the channel is prone to interruption or alarm,seriously affect the safe and stable operation of the power grid.This paper proposes a channel anomaly processing method by analyzing the abnormality of a 500 kV line protection fiber channel,which provides reference and reference for similar anomaly processing.