有源型光纤电流互感器的研究

Study on a novel optical fiber current transformer

设计了一种新型光纤电流互感器(Optical fiber Current Transformer,简称OCT),采用光纤传感技术与电子技术相结合的方法,研制出电压等级为110kV,额定电流为1kA的样机。该样机已经通过有关测试,其精度达到±0.2%。与传统的电流互感器相比,这种新型光纤电流互感器具有精度高、体积小、造价低、良好的动态特性和不受电磁干扰等优点。

A novel Optical fiber Current Transformer （OCT） was designed by the methods of technology of fiber sensor in conjunction with reliable optoelectronic technique, and designed the OCT （110kV and 1kA）, which has been tested and its accuracy could achieve ±0.2%. Compared to the conventional current trans- former, the advantages of the OCT are high accuracy, low cast, small size, excellent dynamic characteristics and immunity from electromagnetic interference.