摘要
通过分析变压器接地故障,建立了铁心多点接地故障模型,并基于有限元方法进行仿真计算,得出了温度场分布情况和故障电流分布情况,以及铁心环流与故障点温度的关系,为铁心多点接地故障的检测提供理论依据。
Multipoint grounding of trans-former core is one of the common faults of transformer.In this paper,using the multiphysics coupling calculation software based on the finite element method the simulation of electric-thermal field of the core model with defects have been done.Finally,the distribution of internal temperature field and the distribution of current are described.
出处
《河北电力技术》
2017年第1期35-37,41,共4页
Hebei Electric Power
关键词
变压器
铁心多点接地故障
有限元仿真
温度场
transformer
core
multipoint grounding fault
finite element simulation
temperature field
