电流 互感器的作用 The function of current transformer （1）将一次系统的电流信息准确传递到二次侧相关设备。 (1) transfer the current information of a system to the secondary side. （2）将一次系统的大电流变换为二次侧的小电流，使得测量、计量仪表和继电保护等装置标准化、小型化，并降低了对二次设备绝缘的要求。 (2) a system of large current transform into the secondary side of the small current, make the measurement, measurement instrument and standardization of relay protection devices, miniaturization, and reduce the requirement for secondary equipment insulation. （3）将二次设备以及二次系统与一次系统高压设备在电气方面很好的隔离，保证了二次设备和人身的安全。 (3) the secondary equipment and the secondary system and a system high voltage equipment are well isolated from the electrical system, ensuring the safety of secondary equipment and personal safety.