JFY-3型变压器局部放电在线监测系统

ＪＦＹ－３型变压器局部放电在线监测系统能连续监测多台大型变压器的局部放电,并具有事故追忆、故障报警和定位等功能。它采用芝带多通道、大容量、高采样率数据采样;运用多种数字信号处理方法抑制干扰;采取电－声联合监测方式,以实现放电点定位。主控室的上位机与现场的数据采集装置之间的通信由网络舆系统实现,提高了信号传输的速率和可靠性,从而提高了系统的抗干扰能力。本文主要介绍了下位机相关的硬件部分。

JFY-3 on-line partial discharge monitoring system for power transformers

JFY|3 on|line partial discharge monitoring system for power transformers is developed to continuously monitor several power transformers with the functions of failure reminiscence, fault alarm and discharge point locating, etc. The features of developed multiple channels data acquisition setup facilitate the further use of digital signal processing methods. In order to locate the discharge source the electrical and ultrasonic signals of discharge are simultaneously monitored. Network technologies are used to carry out the communication between detecting system near transformers and upper stage computer to improve the reliability and performance of monitoring system itself. With satisfactory scalability and flexibility, the system has been put into operation on site.