大型汽轮发电机定子单相接地的继电保护评述  

A review on single phase to ground protection for huge turbine-generators

作　　者：党晓强[1] 邰能灵[1] 王海田[1] 黄彬[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电力系统保护与控制》2010年第2期131-135,共5页Power System Protection and Control

基　　金：上海市教委曙光计划资助项目(07SG11);新世纪优秀人才支持计划资助项目(NCET20820356)

摘　　要：介绍了大型汽轮发电机定子单相接地3种保护技术的基本原理和适用范围,着重分析了造成双频式保护误动的各种具体情况,并提出部分针对性的防范措施。同时简单评述了汽轮发电机定子单相接地保护的选择性问题。最后对大型汽轮发电机定子单相接地保护技术的前景做了展望。The principle theory of protection for huge turbine-generators＇ single-phase ground and their application scope are briefly reviewed. The analysis mainly focuses on two-frequency ground protection＇s malfunction. Some corresponding countermeasures are proposed. Selective scheme for turbine-generators＇ single-phase ground are discussed, and the new development trend for the single-phase ground is predicted lastly.

关 键 词：大型汽轮发电机 定子单相接地 继电保护误动 

分 类 号：TM862[电气工程—高电压与绝缘技术]