【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。更多还原

【Abstract】 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.更多还原