开口磁芯的高频电流传感器幅频特性研究  

Study on the Amplitude-frequency Characteristics of High Frequency Current Transformer with Open Cores

作　　者：李富贵 李春锋 王璇[2] 方福歆 孔海洋[2] 关焕梅[3] 

机构地区：[1]平煤集团公司电务厂,河南平顶山467000 [2]武汉大学电气工程学院,湖北武汉430072 [3]武汉大学计算机学院,湖北武汉430072

出　　处：《河南科技》2015年第6期122-124,共3页Henan Science and Technology

摘　　要：设计制作了一种开口磁芯的高频电流传感器,应用于电力电缆局部放电检测系统。开口式的高频电流传感器,方便安装和卸载,带宽为50k Hz至50MHz。本实验分析了线圈匝数、积分电阻和气隙对传感器幅频特性的影响,设计制作的高频电流传感器满足电缆局部放电检测要求,对开合式的高频电流传感器的制作具有指导意义。We designed a kind of high frequency current transformer（HFCT）with open cores,which was applied tocable partial discharge on-line detection system. It is convenient to install and uninstall,the bandwidth is 50 k Hz to50 MHz. The experiments analyzed the influences of coil number of turns,integrating resistance and air-gap size onthe amplitude-frequency characteristic. This kind of HFCT meets the requirements of cable partial discharge on-linedetection system,providing guidance to the fabrication of HFCT with open cores.

关 键 词：高频电流传感器 气隙 匝数 积分电阻 幅频特性 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]