小峡水电站电气二次设备技术改造

Technical Reformation of Secondary Electrical Equipment of Xiaoxia Hydropower Station

小峡水电站自从首台机组发电以来,由于设计、设备制造及安装调试等因素,电气二次设备发生了诸多不安全现象。近几年,对机组调速系统、计算机监控系统、保护系统及全厂辅助设备等的测量控制回路和功能进行了改造,使设备的整体自动化水平及运行可靠性得到显著提高。

Because of such factors as improper design, manufacture and installation, some insecure phenomena have taken place in the secondary electrical equipment of the Xiaoxia Hydropower Station since the first generating unit was put into operation. In recent years, the measurement and control loops of the governor system, monitoring and control system, protection system and auxiliary equipment have been reformed. Consequently, the automatization and reliability of the equipment are significantly improved.