tanδ在线检测用电流传感器的性能分析

Analysis of Current Sensor’s Performance for On-line Insulation Monitoring

研究了电气设备绝缘在线检测中获取被测信号的关键元件——电流传感器 ;分析了传感器的基本工作原理 ;提出了其设计方法 ;讨论了传感器的电路结构、屏蔽措施和误差。通过理论分析和测试 ,研制出了结构简单、性能稳定。

Current sensor, the key element used to extract measured signals in on line monitoring of power equipment, is presented . Its working principle is analyzed, and the design method is put forward also. Furthermore, the structure, shielding and error of current transducer are discussed. Based on theoretical analysis and experimental tests, a simple, stable and satisfactory current sensor is developed.