基于综合参数的电力变压器故障在线诊断装置的硬件设计  

Hardware Design of Equipment of On-line Fault Diagnosis for Power Transformer based on Comprehensive Parameters

作　　者：张洪涛[1] 王福忠[1] 王晓丹[1] 

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《河南理工大学学报（自然科学版）》2005年第6期462-465,共4页Journal of Henan Polytechnic University（Natural Science）

基　　金：河南省科技攻关项目(0324140156)

摘　　要：设计出了基于综合参数的电力变压器故障在线诊断系统,介绍了局部放电在线监测回路、介质损耗因数在线监测回路、油中气体成分在线监测回路、铁芯接地电流在线监测回路等4个回路的硬件设计;将预防性试验数据与关键的在线监测技术相结合,避免了运行事故.运行情况表明,该系统具有检测精度高、信号处理速度快、可靠性好及抗干扰能力强等特点.The system of on-line fault diagnosis for power transformer based on comprehensive parameters is designed. The system mainly contains hardware design of four circuits, on-line monitoring circuit of partial discharge, dielectric loss factor, gas composition in oil and core earthing current. Preventive trial data and key technology of on-line monitor are combined, which avoids operating accident. The result shows that the system has high accuracy in detection, fast speed in signal process, reliability and powerful antl-interperence.

关 键 词：电力变压器 局部放电 介质损耗因数 油中气体成分 铁芯接地电流 

分 类 号：TM41[电气工程—电器]