【摘要】 采用传统的电流互感器(Current transformer,简称CT)测量原理与光电子技术相结合的方法,设计了一种光电式电流互感器(Optical current transformer,简称OCT)。该电流互感器的电压等级为110 kV,额定电流为1 kA。样机已通过有关测试,其精度达到±0.2%。与传统的电流互感器相比,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。更多还原

【Abstract】 An optical electronic current transformer(OCT) has been designed by electromagnetic induction principle used in conjunction with reliable optoelectronic technique.The OCT(110 kV and 1 kA) has been tested and its accuracy could achieve ±0.2%.Compared to the conventional current transformer,the advantages of the OCT are high accuracy,low cost,small size,excellent dynamic characteristics and immunity from electromagnetic interference.更多还原