Results 191 to 200 of about 23,922 (257)
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IEEE Transactions on Power Delivery, 2022
This research presents a dynamic modeling approach to predict flashover voltage (FOV) of polymer insulators. Pre-flashover conditions can be used to represent analytical formulations for different stages of dry band arcing activities on the surface of ...
H. R. Sezavar, N. Fahimi, A. Shayegani
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This research presents a dynamic modeling approach to predict flashover voltage (FOV) of polymer insulators. Pre-flashover conditions can be used to represent analytical formulations for different stages of dry band arcing activities on the surface of ...
H. R. Sezavar, N. Fahimi, A. Shayegani
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Physics of Plasmas, 2022
With the introduction of the gas diffusion model, the surface flashover at the insulator–vacuum interface perpendicular to electrodes is simulated with the particle-in-cell method.
Jianwei Zhang +5 more
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With the introduction of the gas diffusion model, the surface flashover at the insulator–vacuum interface perpendicular to electrodes is simulated with the particle-in-cell method.
Jianwei Zhang +5 more
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Physica Scripta, 2022
Under DC voltage, the interface charge of the spacer in gas-insulated metal-enclosed transmission lines (GIL) and gas-insulated metal-enclosed switchgear (GIS) is prone to accumulate, and the charge is an important factor to induce surface flashover.
Shaocong Wu +7 more
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Under DC voltage, the interface charge of the spacer in gas-insulated metal-enclosed transmission lines (GIL) and gas-insulated metal-enclosed switchgear (GIS) is prone to accumulate, and the charge is an important factor to induce surface flashover.
Shaocong Wu +7 more
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Suppression Measures of Insulator Flashover Caused by Haze Flashover
2018 China International Conference on Electricity Distribution (CICED), 2018Fog haze weather frequently appears in recent years. Fog haze not only makes the travel inconvenient, also has a harmful effect on body. Fog haze brings serious security hidden danger to the power grid safety and power equipment operation. The lightest situation is shortening the time of saturated salt density, and pollution accident is the heaviest ...
Zhenyu Wang +5 more
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Effect of Deposited Charge on Vacuum DC Surface Flashover Under Electron Beam Irradiation
IEEE Transactions on Plasma Science, 2022Spacecraft operating environment is rather complex, including high vacuum and energetic electron radiation. Vacuum-insulation interface is usually the weakest link of the insulation system since surface flashover usually occurs at the interface.
Shaoming Pan +7 more
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Journal of Applied Physics, 2022
Investigations into surface flashover characteristics and underlying mechanisms in the range from atmospheric to near vacuum pressure are significant for developing high-power equipment based on the application of gases used for flashover prevention.
Jiakai Zeng +7 more
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Investigations into surface flashover characteristics and underlying mechanisms in the range from atmospheric to near vacuum pressure are significant for developing high-power equipment based on the application of gases used for flashover prevention.
Jiakai Zeng +7 more
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Influence of Air Pressure on Surface Flashover
IEEE Transactions on Plasma Science, 2022The surface flashover is one of the most important factors that limit the performance of electric devices. In this article, the processes of surface flashover under different pressures are observed by a high-speed camera, and the differences between the ...
A. Xu +4 more
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A review on factors that affect surface charge accumulation and charge-induced surface flashover
Nanotechnology, 2021The surface charge accumulation is very likely to trigger the surface flashover, which limits the large-scale application of DC GIL/GIS. This article comprehensively reviews the effect of six factors, including insulator-electrode shape, surface ...
Mengqiang Yuan +10 more
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Flashover of a Liquid Conducting Film Part 1: Flashover Voltage
IEEE Transactions on Electrical Insulation, 1982We have studied the phenomenon of flashover in a configuration related to that of flashover of high voltage insulators under polluted conditions: a glow discharge is struck at the surface of a liquid, and if the applied voltage is above a critical value, flashover occurs.
G. Peyregne, A. M. Rahal, C. Huraux
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Charge cluster triggers unpredictable insulation surface flashover in pressurized SF6
Journal of Physics D: Applied Physics, 2020This paper reports an unpredictable insulation surface flashover phenomenon triggered by surface charge clusters under DC electric field, which is experimentally revealed by a donut-shaped dust cluster figure, presenting the outline of these surface ...
Chuanyang Li +5 more
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