光学电流互感器及其在电力系统中的应用  

Application of Optical Current Transducer in Electric Power System

作　　者：尚秋峰[1] 王仁洲[1] 杨以涵 

机构地区：[1]华北电力大学电子与通信工程系,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2001年第2期14-18,共5页Journal of North China Electric Power University：Natural Science Edition

摘　　要：用光学电流互感器（ＯＣＴ－Ｏｐｔｉｃａｌ Ｃｕｒｒｅｎｔ Ｔｒａｎｓｄｕｃｅｒ）替代传统的电磁式电流互感器（ＣＴ）是电力系统电流测量的发展趋势。介绍光学电流互感器普遍采用的Ｆａｒａｄaｙ磁光效应原理、各种ＯＣＴ的性能特点和典型应用情况。指出闭合式块状材料型ＯＣＴ具有较好的实用前景，而全光纤式ＯＣＴ则是最终的发展趋势，在某些特殊应用领域，ＯＣＴ已达到实用化要求。The optical current transducers will take place of the conventional current transformers to be employed in the current measurement of the electric power system in the future. In this paper, Faraday effects principle and the characteristics and application of OCTs are introduced. Although the circular bulk-glass OCT has its good application at present, the all-fiber OCT is expected to be the best approach in the future.

关 键 词：电力系统 继电保护 光学电流互感器 法拉第磁长效应 

分 类 号：TM77[电气工程—电力系统及自动化] TM452