频域下变压器绝缘系统DFR技术的应用

DFR Technology Research of Power Transformer Insulation System in Frequency Domain

本文作者利用DFR方法,从绝缘系统的水分含量、液体绝缘油的电导率、绝缘结构的几何尺寸及温度四方面入手建模,生成绝缘系统在宽频域下、各要素发生变化时的介损响应图谱,并分析、诊断各要素对变压器绝缘系统安全性能的影响。

Dielectric frequency response methods of power transformer are used to establish the models from the factors of moisture content in the insulation system,oil conductivity,geometric size of insulation structure,and temperature.Various dielectric frequency response spectrums under wide frequency domainare attained,and the effects of each factor on the safety performance of transformer insulation systemare further analyzed and diagnosed.