电测与仪表2018，Vol.55Issue(1)：53-59,7.
基于Havriliak-Negami介电模型的油浸式套管受潮状态评估
Moisture assessment of oil-impregnated bushing based on Havriliak-Negami dielectric relaxation model
摘要
Abstract
Moisture is one of the prime factors causing oil-impregnated bushing insulation degradation,it is of great significance to research the influence of moisture on dielectric property of condenser bushing based on HN dielectric relaxation model.Five 72.5 kV bushing samples with different initial moisture contents are prepared,then,FDS of them is carried out,and HN dielectric relaxation model are applied to fitting curves of FDS.The influences of moisture content on parameters of HN dielectric relaxation model are analyzed.The results show that moisture content has a significant effect on the relaxation time constant,the relaxation intensity and shape parameter,with the increase of moisture content,the relaxation time constant decreased,the relaxation intensity and shape parameter increased with the rising of moisture content,the relationship between moisture content and relaxation intensity satisfy the log-linear,exponential,linear relationship.关键词
油浸式套管/频域介电谱/HN介电弛豫模型/水分含量Key words
oil-impregnated bushing/frequency domain spectroscopy/HN dielectric relaxation model/moisture content分类
信息技术与安全科学引用本文复制引用
徐肖伟,廖维,王科,刘光祺,钱国超..基于Havriliak-Negami介电模型的油浸式套管受潮状态评估[J].电测与仪表,2018,55(1):53-59,7.基金项目
云南电网有限责任公司科技项目(YNKJXM00000374) （YNKJXM00000374）
