Results 21 to 30 of about 6,652 (225)

Analysis and Experimental Verification of the Peaking Capacitor’s Flashover Process in an EMP Simulator

open access: yesIEEE Access, 2022
The flashover process of the peaking capacitor in the electromagnetic pulse (EMP) simulator is studied based on theoretical analyses and experimental verification in this paper.
Yi Wang   +7 more
doaj   +1 more source

Experimental and numerical investigation of alumina trihydrate effect for improvement of polymer flashover voltage strength

open access: yesEngineering Science and Technology, an International Journal, 2020
Flashover voltage is considered one of the important factors affect the Power system reliability. Environmental conditions and filling of insulators are parameters should be considered in flashover voltage evaluation. In this work, laboratory studies are
L.S. Nasrat   +2 more
doaj   +1 more source

Effect of Temperature on Creeping Flashover Voltage of Nanofilled Oil-Pressboard Insulation

open access: yesIEEE Access, 2020
Creeping flashover (surface discharge) at oil-pressboard interface is considered a serious failure of the insulation system in power transformers. In this paper, creeping flashover voltage at oil-pressboard interface using the concept of nanofluids is ...
Mohamed E. Ibrahim   +3 more
doaj   +1 more source

Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle [PDF]

open access: yes, 2002
Surface pollution of outdoor high-voltage insulators is an important cause of flashover. We have undertaken an experimental study of electrical breakdown at the edges of a sessile water droplet on a planar, polymeric, insulating surface when subject to ...
Gouda, H.A.   +3 more
core   +2 more sources

The Role of the Photo-Generated Carrier in Surface Flashover of the GaAs Photoconductive Semiconductor Switch

open access: yesIEEE Journal of the Electron Devices Society, 2018
The development of Gallium arsenide photoconductive semiconductor switch has been hampered by the surface flashover. The surface flashover threshold with the laser excitation is far lower than the one without the laser excitation.
Shaoqiang Wang, Wei Shi
doaj   +1 more source

Novel dc flashover model for predicting flashover voltage of the iced insulators [PDF]

open access: yesHigh Voltage, 2020
Abstract This work first proposes a novel flashover model based on the deduced residual resistance of the ice layer. The most important finding of the field icing tests is that the double‐layer ice‐melting water film exists on the inner and outer surfaces of the ice layer.
Caijin Fan   +6 more
openaire   +2 more sources

Progress in Vacuum Flashover Mechanism: Validity of ETPR Theory [PDF]

open access: yes, 2021
In this paper, the literature on vacuum flashover and mechanisms are reviewed, and the development of the Electron triggered polarization relaxation (ETPR) theory is the main content.
Kai Yin, Yin, Kai; id_orcid
core   +1 more source

Arc mapping [PDF]

open access: yes, 2010
Establishing a compartment fire's area of origin when it has been burning at post-flashover conditions is a difficult process. Burn patterns traditionally used by fire investigators following post-flashover fires can be erroneous.
NicDaeid, N., Carey, Nicholas
core   +2 more sources

Insulator fault feature extraction system of substation equipment based on machine vision

open access: yesIET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang   +4 more
wiley   +1 more source

Study on Insulator Flashover Voltage Gradient Correction Considering Soluble Pollution Constituents

open access: yesEnergies, 2016
Natural polluted insulator surfaces are always coated with various kinds of soluble constituents, and those constituents affect flashover performance differentially.
Dongdong Zhang   +5 more
doaj   +1 more source

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