乒乓式转子接地保护的双重化应用研究  

Research on Doubling Application of Ping-pong Type Rotor Ground Protection

作　　者：郑作伟[1] 江卫良[1] 郝后堂[1] 史泽兵[1] 顾志飞[1] 

机构地区：[1]国电南瑞科技股份有限公司,江苏南京210003

出　　处：《广东电力》2014年第7期92-95,共4页Guangdong Electric Power

摘　　要：针对现场双重化配置的乒乓式转子接地保护只有一套保护的测量回路能够接入而另外一套保护只能作为备用的问题,在分析乒乓式转子接地保护原理的基础上,提出了一种乒乓式转子接地保护双重化方案。通过把每一套保护测量回路中用来计算接地电阻和接地位置的电流(电压)串接(并接)到另一套保护,使得只有一套保护的测量回路投入运行时,两套保护都能够计算接地电阻和接地位置,从而完成保护功能,实现乒乓式转子接地保护的双重化。最后分析了乒乓式转子接地保护双重化方案的各种运行方式及其控制方法。Aiming at the problem that there is only one set of protection measuring circuit connection of ping-pong type rotor ground protection which is doubly configured on the scene while another set of protection as spare,this paper proposes a doubling configuration scheme for ping-pong type rotor ground protection on the basis of ping-pong type rotor ground pro-tection principle.By concatenating （merging）current （voltage）which was used to calculate ground resistance and ground po-sition in measuring circuit of every set of protection to another set of protection that may cause only one set of protection measuring circuit keep running,as a result ground resistance and ground position were both able to be calculated for these two sets of protection and protection function was thereby finished and doubling configuration of ping-pong type rotor ground protection was realized.At last,various running modes and control methods for doubling configuration scheme were analyzed.

关 键 词：乒乓式 转子接地保护 测量回路 双重化方案 运行方式 

分 类 号：TM862[电气工程—高电压与绝缘技术]