电力变压器用数字化局部放电在线监测系统  

A Digital on-line Partial Discharge Monitoring System for Power Transformers

作　　者：方琼[1] 冯义[1] 王凯[1] 徐阳[1] 曹晓珑[1] 邱昌容[1] 

机构地区：[1]西安交通大学电气绝缘国家重点实验室,西安710049

出　　处：《高电压技术》2002年第7期25-27,共3页High Voltage Engineering

摘　　要：借助特制传感器、高速采集卡、上下位机、分析软件等实现局部放电信号的采集和分析 ,并通过极性鉴别、相位鉴别、数字滤波等措施研制的基于数字信号处理的电力变压器局部放电在线监测系统 ,较好的抑制了现场干扰 ,并给出了该系统在现场运行的测量结果。The on-line partial discharge monitoring system for power transformers is on the base of digital signal processing. With the sensors, high-speed data acquisition board, upper and down stage computers and analyzing software, etc, partial discharge signal is acquired and analyzed, as well as the disturbed signal is well restrained by using anti-interference techniques that include pulse polarity discrimination, digital filter technique and phase discrimination. Finally, this paper provides the monitoring results which are measured on the spot.

关 键 词：电力变压器 数字化 局部放电 在线监测系统 

分 类 号：TM764[电气工程—电力系统及自动化]