大型发电机局部放电宽频传感器的研究  

Reseach on Wide Band Sensor for PD in Stator Windings of Large Generator

作　　者：蒋远东[1] 陈庆国[1] 杨可[1] 郭召艳[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150040

出　　处：《大电机技术》2006年第5期20-22,27,共4页Large Electric Machine and Hydraulic Turbine

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.

关 键 词：在线监测 局部放电 电流传感器 大型发电机 

分 类 号：TM306[电气工程—电机]