电子式电流互感器研究评述

Comment on the research of electronic current transformers

对Rogowski线圈电流互感器和光学电流互感器这两种主要的电子式电流互感器进行了基本的评述。在动态测量品质方面,光学电流互感器优于Rogowski线圈电流互感器。两种电子式电流互感器都形成了实用化技术。电子式电流互感器对提高电网动态观测的准确性,对提高继电保护的动作可靠性,对于数字电力系统的建设都具有重要意义。

The basic comment on electronic current transformer,including Rogowski coil current transformer and optical current transformer,is presented. It is obvious that the optical current transformer excels the Rogowski coil current transformer in respect of dynamic measurement quality. The practical technologies have been formed for the two kinds of electronic current transformer. The electronic current transformer is significant for improving the accuracy of dynamic observation of power network and the reliability of relaying,and is the fundamental of the construction of digital power system.