Results 11 to 20 of about 6,358 (219)

Surface flashover of silicon [PDF]

open access: yesIEEE Transactions on Electron Devices, 1990
Empirical information about surface flashover of silicon in a vacuum ambient which shows that in breakdown the current is carried primarily inside the semiconductor is presented. This observation shows that the physical processes responsible for flashover of silicon are fundamentally different from those assumed in the standard model for flashover of ...
Peterkin, Frank E.   +7 more
openaire   +3 more sources

Flashover Characteristics of Dry Band-water band on Hydrophobic Surfaces

open access: yesCSEE Journal of Power and Energy Systems
Due to their outstanding anti-flashover characteristics, composite insulators have been extensively applied in power systems. A lot of research has investigated flashover characteristics of hydrophobic specimens with artificial water droplets.
Xiaohan Wu   +5 more
doaj   +2 more sources

Flashover Features in Aircraft Cargo Compartment at Low Pressure

open access: yesFire
The flashover mechanism in an aircraft cargo compartment under low pressure was investigated in this study. A series of fire experiments were conducted in a scale model of a one-quarter volume FAA standard aircraft cargo compartment at 96 kPa and 60 kPa.
Zitong Li   +3 more
doaj   +2 more sources

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   +3 more sources

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   +3 more sources

Particle swarm optimization of a neural network model for predicting the flashover voltage on polluted cap and pin insulator [PDF]

open access: yes, 2022
This paper proposes training an artificial neural network (ANN) by a particle swarm optimization (PSO) technique to predict the flashover voltage of outdoor insulators.
Bourek, Yacine   +5 more
core   +2 more sources

Application of Fuzzy Controller in Monitoring of Roof Air Flashover

open access: yesGong-kuang zidonghua, 2011
The paper used point-plate discharging model to simulate roof air flashover, verified feasibility of using two factors of pulses and power current to monitor occurrence of roof air flashover by analyzing experimental data, and obtained change range of ...
LIU En-peng   +3 more
doaj   +1 more source

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

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

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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