某大型水电站发变组保护装置换型的改进优化  

Renovation and Optimization Measures in the Replacement of the Generator-Transformer Unit Protection Device in a Large-scale Hydropower Station

作　　者：孙亚娟 曾帅 苏凯亚 杨坤 王婷 SUN Yajuan;ZENG Shuai;SU Kaiya;YANG Kun;WANG Ting(Three Gorges Hydropower Plant,China Yangtze Power Co.,Ltd.,Yichang 443000,China)

机构地区：[1]中国长江电力股份有限公司三峡水力发电厂,湖北宜昌443000

出　　处：《水电与新能源》2024年第6期56-58,共3页Hydropower and New Energy

摘　　要：在某大型水电站发变组保护装置换型改造中,基于保护系统重要改进点的分析,对电流电压采样回路、程序设定进行了改进,新增了保护配置,使发变组保护系统更符合国家相关的规定,有效提高了合理性、可靠性;且应用不同厂家装置,避免了设备家族性的软、硬件缺陷带来的安全隐患,可供类似水电站发变组保护系统的优化设计、改造参考。In the replacement of the generator-transformer unit protection device in a large-scale hydropower station,the current and voltage sampling circuit and the program configuration are renovated based on the analysis of some important renovation points of the protection system.Protection configurations are added,which make the protection system more in line with relevant national regulations,and effectively improve the rationality and reliability.Also,devices from different manufactures are adopted to avoid the safety risks caused by software and hardware defects in the equipment family.It can be useful reference for the optimization design and renovation of similar generator-transformer unit protection systems in hydropower stations.

关 键 词：发变组保护 换型改造 保护配置 回路改进 

分 类 号：TM312[电气工程—电机]