岩滩水电站扩建工程调速系统事故配压分段关闭装置技术改造

Technical Renovation of Emergency Distribution Step-closure Device for Speed Governing System in the Extension Project of Yantan Hydropower Station

岩滩水电站扩建工程机组投产后,调速系统总体运行稳定,各项主要性能指标符合设计和运行要求,厂家根据扩建工程调速系统在调试中发现的缺陷和安全隐患进行了事故配压分段关闭装置技术改造工作,技术改造后运行效果良好,进一步提高了调速系统的安全性和可靠性。

The speed governing system has been running stably and the major performance indicators are satisfac- tory to the design and operation requirements since its operation. However, the defects in the emergency distribu- tion step-closure device need to be eliminated through technical renovation. Hence, the step-closure device was renovated, which obtained good results and improved the safety and reliability of the governing system.