摘要
采用电磁感应原理设计出宽频高灵敏度脉冲电流传感器。理论分析表明:线圈匝数及积分电阻对传感器的灵敏度、带宽影响最大。利用信号发生器,通过调节线圈匝数和积分电阻试验研究了传感器的幅频特性,得出线圈匝数及积分电阻的最佳值。在此基础上设计出了适于局部放电在线监测用的宽频传感器。
Based on the electromagnetic induction principle, wide band and high sensitivity current sensor was developed. The Theoretical analysis result shows that the coil number and the integral resistance have great influence on the sensitivity and bandwidth of the current sensor. Using the function signal generator, characteristics of the sensor amplitude and frequency were studied by changing the coil number and integral resistance value and the optimum value of coil number and integral resistance were obtained. At last, the wide band current sensor used in PD on-line monitoring was designed.
出处
《大电机技术》
北大核心
2006年第5期20-22,27,共4页
Large Electric Machine and Hydraulic Turbine
关键词
在线监测
局部放电
电流传感器
大型发电机
on-line monitoring
partial discharge
current transducer
large generator
