第二代智能变电站FOCT故障源分析

Analysis on FOCT Failure for the Second Generation of Intelligent Substation

某220 kV第二代智能变电站在投产不到一个月的时间调控端频发220部分间隔的相关光路及SV采样异常告警信息,相关保护也被闭锁。本文分析了故障情况,查找问题根本原因,并对FOCT的现场应用提出相关给予建议,为今后智能变电站中光CT的应用提供借鉴。

The abnormal alarm signals of optical path of 220 part and SV sampling interval were frequently alerted from regulation aspect in less than a month, and partial protection was latched. The paper analyzes the faults situation , find the root causes of the problem, and give advices for FOCT field applications, which provides a reference for ray CT future application of intelligent substations.