基于频域介电谱法的油纸绝缘系统弛豫函数与微水及温度关系  

Effect of moisture and temperature on relaxation function of oil-paper insulation based on frequency domain spectroscopy

作　　者：申翰林[1] 吴广宁[2] 文德斌[3] 

机构地区：[1]中国民用航空飞行学院航空工程学院,四川广汉618307 [2]西南交通大学电气工程学院,成都610031 [3]四川省电力公司攀枝花电业局,四川攀枝花617000

出　　处：《中国科技论文》2013年第11期1189-1191,共3页China Sciencepaper

基　　金：国家自然科学基金资助项目(51177136)

摘　　要：为了分析油纸绝缘系统的介电谱与频率和微水含量及温度变化之间的关系,在实验室搭建了测试装置。根据测试结果,研究了水分及温度对变压器主绝缘系统的影响规律及其影响机理,通过傅里叶逆变换得到复合绝缘体系的弛豫函数。结果表明:含有3个弛豫项的物理模型,可以较好反映油纸绝缘的弛豫及其微观极化机制,微水和温度对弛豫函数的影响较大且影响规律不同。In order to analyze the effect of moisture and temperature on relaxation function of oil-paper insulation, we built a phys- ical model of the oil-paper insulation system containing moisture and obtained the expression of relaxation function. A testing de- vice was set up for the oil-paper insulation dielectric spectroscopy in the laboratory, and the parameter values of relaxation func- tion expression were obtained according to test result by Fourier inverse transformation. The results show that the relaxation function containing three relaxation factors can better reflect the relaxation of oil-paper insulation containing moisture content and microscopic polarization mechanism, and moisture and temperature have significant effects on the relaxation function to varying extent.

关 键 词：频域介电谱法 油纸复合绝缘 弛豫函数 微水含量 温度 

分 类 号：TM855[电气工程—高电压与绝缘技术]