摘要
针对开关柜局部放电产生的暂态对地电压(TEV)信号设计了一种局部放电传感器。该传感器由容性耦合、滤波、放大和降频等功能模块组成,具有噪声低、灵敏度高和动态范围宽等优点。测试表明:该传感器能可靠地采集开关柜局部放电产生的暂态对地电压信号。
A partial discharge sensor is designed in switch cabinet which is used to acquire the transient voltage to earth （TEV） generatored in switch cabinet PD. The system function consists of capacitive coupling, filtering, and amplification and down clock. It is with the excellence of low noise, high sensitivity and wide dynamic range, etc. The test shows that the sensor can acquire switch cabinet partial discharge from the transient voltage to earth reliably.
出处
《传感器世界》
2013年第4期14-18,共5页
Sensor World
关键词
暂态对地电压
开关柜
局部放电
传感器
transient voltage to earth
switch cabinet
partial discharge
sensor
