Results 1 to 10 of about 6,766 (228)

Non-invasive surface potential measurement of surface flashover

open access: yes电力工程技术, 2022
Surface flashover is an important accident threating the safe operation of gas-insulated switchgear (GIS). Non-invasive surface potential measurement for flashover test device with finger-shape electrodes is proposed,and the feasibility of this device is
FAN Lu, GENG Yiwen, WANG Yalin, YIN Yi
doaj   +2 more sources

Improvement of surface flashover in vacuum [PDF]

open access: yesHigh Voltage, 2020
Surface flashover of insulation systems is a basic issue in the field of high voltage and electrical insulation. To improve the surface flashover performance is of great significance for the development of advanced power transmission equipment and ...
Shengtao Li
doaj   +2 more sources

Research and Analysis on Enhancement of Surface Flashover Performance of Epoxy Resin Based on Dielectric Barrier Discharge Plasma Fluorination Modification. [PDF]

open access: yesNanomaterials (Basel)
To conquer the challenges of charge accumulation and surface flashover in epoxy resin under direct current (DC) electric fields, numerous efforts have been made to research dielectric barrier discharge (DBD) plasma treatments using CF4/Ar as the medium ...
Chang X, Sui Y, Li C, Yan Z.
europepmc   +2 more sources

The potentially neglected culprit of DC surface flashover: electron migration under temperature gradients. [PDF]

open access: yesSci Rep, 2017
This report intends to reveal the role of electron migration and its effects in triggering direct current (DC) surface flashover under temperature gradient conditions when using epoxy-based insulating composites.
Li C, Hu J, Lin C, He J.
europepmc   +2 more sources

Surface flashover in 50 years: Theoretical models and competing mechanisms

open access: yesHigh Voltage, 2023
Surface flashover is a devastating electronic avalanche along the gas–solid interface when a high electric field is applied, which is a potential issue that threatens the safe operations of advanced power electronic, electrical, and spacecraft ...
Zhen Li   +5 more
doaj   +1 more source

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

Surface flashover of silicon

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

Feature extraction and classification of surface discharges on an ice-covered insulator string during AC flashover using gray-level co-occurrence matrix

open access: yesScientific Reports, 2021
This study focuses on the feature extraction and classification of surface discharges of ice-covered insulator strings during process of alternating current flashover.
Yong Liu   +3 more
doaj   +1 more source

Unraveling the “U-Shaped” Dependence of Surface Flashover Performance on the Surface Trap Level

open access: yesIEEE Access, 2019
The effects of surface traps on surface flashover remain controversial. To clarify the relation between surface flashover and surface trap level, in this work, the surface trap level of epoxy composites was modified by nanoparticles incorporation ...
Shengtao Li   +6 more
doaj   +1 more source

Mechanism of saline deposition and surface flashover on high-voltage insulators near shoreline:mathematical models and experimental validations [PDF]

open access: yes, 2019
This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline.
Chaudhary, Muhammad Akmal   +2 more
core   +2 more sources

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