光学电流传感器及其在继电保护中的应用  

OPTICAL CURRENT TRANSDUCER AND ITS APPLICATION IN PROTECTIVE RELAYING

作　　者：滕林[1] 刘万顺[1] 李贵存[1] 贾清泉[2] 李岩松[2] 

机构地区：[1]华北电力大学四方研究所,北京100085 [2]华北电力大学电力系,北京102206

出　　处：《电网技术》2002年第1期31-33,42,共4页Power System Technology

摘　　要：传统的电磁式互感器已在与微机保护的配合中暴露出许多问题 ,以光学电流传感器 (OCT)为代表的新型变换器的出现为此提供了解决方案。文中首先将 OCT与电磁式 CT进行了比较 ,然后介绍了 OCT的工作原理及其信号的检测方法 ;指出 OCT与微机保护的接口应是数字电信号 ,并介绍了目前这方面工作的进展情况 ,OCT的应用必将对未来的保护原理、性能。Many inconveniences reveal in the coordination of traditional electro magnetic current transformer with microcomputer based protective devices. The appearance of optical current transducer (OCT) offers new solution for this problem. In this paper at first a comparison of OCT with electro magnetic CT is presented, then the working principle of OCT and the detection method of its signal are presented. It is pointed out that the OCT and microcomputer based protective device should be interfaced by digital signal and the progress in this field is introduced. Surely, the principle, performance and hardware of future protective relaying will be influenced by the application of OCT to it and the development of protective devices will be promoted.

关 键 词：光学电流传感器 继电保护 微机保护 电力系统 

分 类 号：TM452[电气工程—电器] TM77