With the development of UHV and EHV equipment and power transmission system,mineral oil has been widely used in the insulation of electrical equipment for its excellent dielectric properties,aging stability and safety performance.This paper simulates the propagation process of streamer discharge in oil,analyzes the results of variation of electric field intensity and space charge,then studies the simulation results of transformer discharge model under different applied voltage and different needle-ball spacing,compares the characteristics and development of the streamer discharge process under different conditions,and finally determines the influence of different factors on the formation and development of streamer discharge.
关键词
超高压/特高压设备/放电仿真/空间电荷/变压器绝缘油/电场强度/矿物油/流注放电
Key words
UHV/EHV equipment/discharge simulation/space charge/transformer insulating oil/electric field intensity/mineral oil/streamer discharge
维普
万方数据