Surface Charge Effect on the Electric Field Distribution of Tri-Post Insulator used in ±800kV DC Wall Bushing

2020 ◽  
Author(s):  
Huidong Tian ◽  
Yu Lu ◽  
Shiyi Zhou ◽  
Qingyu Wang ◽  
Peng Liu ◽  
...  
Keyword(s):  
Electric Field ◽  
Surface Charge ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Charge Effect ◽  
Surface Charge Effect ◽  
Post Insulator

Electron beam modeling and analyses of the electric field distribution and space charge effect

2021 ◽  
Author(s):  
Jiang Yueling ◽  
Dong Quanlin
Keyword(s):  
Electron Beam ◽  
Electric Field ◽  
Space Charge ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Space Charge Effect ◽  
Electron Beam Current ◽  
Field Calculation ◽  
Charge Effect ◽  
Cross Sectional

Abstract In electron beam technology, the critical focus of research and development efforts is on improving the measurement of electron beam parameters. The parameters are closely related to the generation, emission, operation environment, and role of the electron beam and the corresponding medium. In this study, a field calculation method is proposed, and the electric field intensity distribution on the electron beam’s cross-section is analyzed. The characteristics of beam diffusion caused by the space charge effect are investigated in a simulation, obtained data are compared with the experiment. The simulation demonstrated that the cross-sectional electric field distribution is primarily affected by the electron beam current, current density distribution, and electron beam propagation speed.

Analysis on Electric Field Distribution of ±1000kV DC Wall Bushing with Considering Space Charge

2012 ◽  
Vol 229-231 ◽  
pp. 815-818
Author(s):  
Li Zhang ◽  
Qing Min Li ◽  
Li Na Zhang ◽  
Lei Cao
Keyword(s):  
Electric Field ◽  
Space Charge ◽  
Surface Charge ◽  
Field Distribution ◽  
Potential Distribution ◽  
Electric Field Distribution ◽  
Work Condition

Based on space charge theory, electric field and potential distribution of ±1000kV DC wall bushing under DC and AC work condition is analyzed in this paper. The position and amount of space charge can be deduced from space charge theory and surface charge theory. By analyzing electric field and potential distribution under DC and AC voltage work condition with and without space charge, valuable conclusions are drawn, which provides valuable reference for insulation design.

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