摘要
本文介绍了一种采用电-声联合检测法的变压器局部放电在线监测系统,系统采用罗科夫斯基线圈采集脉冲电流信号,利用磁浮式高抗干扰超声探头采集局部放电声波信号,通过上位机软件进行放电脉冲幅值、频次和放电源位置等参数的计算,从而实现对变压器局部放电的监测。装置采用脉冲分离技术及光纤传输系统,实现强干扰环境下的局部放电在线监测,使监测数据更加真实可靠。
This paper introduces a partial discharge monitoring system combined current measuring and ultrasonic detecting. Rogowski coil was used to acquire current pulse, and high anti-jamming ultrasound probe to collect acoustic signals of partial discharge. Via a PC software to calculate the amplitude, frequency and discharge source location. The device uses pulse separation technology and optical fiber transmission system to achieve on-line monitoring of partial discharge under strong interference environment, and make the monitoring data more realistic and reliable.
出处
《电气技术》
2013年第7期56-58,71,共4页
Electrical Engineering
关键词
局部放电
脉冲分离
电流脉冲
声波脉冲
在线监测
partial discharge
pulse separation
current pulse
sonic pulse
on-line monitoring
