摘要
分析变压器内部发生局部放电时特高频信号从内到外的传播特性,以及特高频信号在变压器内部和从内到外的传播特性差异,构建了单相变压器的模型,进行了特高频信号传播特性的仿真研究,结果表明特高频信号可以通过缝隙处传播到外部,但其信号峰值会大幅衰减。
The propagation characteristics of UHF (Ultra High Frequency) signals from transformer inside to outside are studied in this paper. The propagation difference between inside and outside of transformer is analyzed. The single phase transformer model is created to study the propagation characteristics by simulation. The simulation results show the UHF can spread to outside of tr ansformer but the amplitude will decr ease sharply.
作者
马小光
吕静志
张弛
王伟
MA Xiaoguang;LV Jingzhi;ZHANG Chi;WANG Wei(State Grid Tianjin Electric Power Corporation,Tianjin 300010,China;Maintenance Company of Tianjin Electric Power Corporation,Tianjin 300230,China;Electric Power Research Institute of Tianjin Electric Power Corporation, Tianjin 300384,China)
出处
《河北电力技术》
2018年第6期15-18,46,共5页
Hebei Electric Power
关键词
变压器
局部放电
特高频
传播特性
transformer
partial discharge
UHF
propagation characteristics
