Results 11 to 20 of about 732,564 (210)
Increased surface flashover voltage in microfabricated devices [PDF]
Applied Physics Letters, 2013 With the demand for improved performance in microfabricated devices, the necessity to apply greater electric fields and voltages becomes evident. When operating in vacuum, the voltage is typically limited by surface flashover forming along the surface of a dielectric.
Sterling R.C. +3 more
openaire +4 more sources
Prediction of Critical Flashover Voltage of High Voltage Insulators Leveraging Bootstrap Neural Network [PDF]
Electronics, 2020 Understanding the flashover performance of the outdoor high voltage insulator has been in the interest of many researchers recently. Various studies have been performed to investigate the critical flashover voltage of outdoor high voltage insulators analytically and in the laboratory. However, laboratory experiments are expensive and time-consuming. On
M. Tahir Khan Niazi +5 more
core +8 more sources
IEEE Access, 2021 This work aimed to study the influence of contamination profiles and humidity on flashover electrical characteristics of polluted insulators. Firstly, the flashover tests on cap and pin glass insulators under four pollution levels represented by salinity
Ali Ahmed Salem +6 more
doaj +2 more sources
Effect of electron beam irradiation on surface molecule and flashover voltage of epoxy composites
High VoltageThe unsatisfactory insulating properties of solid–gas interfaces seriously restrict the development of high‐voltage electrical equipment and threaten their power supply stability.
Mingru Li +9 more
doaj +2 more sources
Sessile water droplets on insulating surfaces subject to high AC stress effect of contact angle [PDF]
, 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
Short-term Breakdown and Long-term Failure in Nanodielectrics: A Review [PDF]
, 2010 Nanodielectrics, which are concentrated in polymer matrix incorporating nanofillers, have received considerable attention due to their potential benefits as dielectrics.
Yunxa Zhang +15 more
core +2 more sources
Particle swarm optimization of a neural network model for predicting the flashover voltage on polluted cap and pin insulator [PDF]
, 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
IEEE Access, 2020 This paper informs on the flashover strength of three materials: Delrin (polyoxymethylene), HDPE (high-density polyethylene) and Ultem (polyetherimide) with smooth surface finishes, in zero-grade air at -0.5, 0 and 0.5 bar gauge, and at <; 10%, ~50 ...
Ruairidh W. Macpherson +4 more
doaj +1 more source
Ain Shams Engineering Journal, 2023 The aim of this work is to model the influence of uneven contamination distribution under various humidity on the pollution flashover voltage of 11 kV porcelain insulator disc. Four scenarios of contamination distribution were proposed to test the sample
Ali Ahmed Salem +7 more
doaj +1 more source
Insulator fault feature extraction system of substation equipment based on machine vision
IET 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