Results 21 to 30 of about 2,187 (197)

Dielectric barriers under lightning impulse stress: Breakdown and discharge-dielectric interaction in short non-uniform air gaps [PDF]

open access: yes, 2019
Dielectric-air insulation systems can reduce the carbon footprint of medium voltage switchgear, as they can replace SF6-insulated systems. Such replacement is, however, not easy, as the devices are typically compact and complex, with strongly ...
Meyer, Hans Kristian Hygen
core   +2 more sources

Impact of the electrode proximity on the streamer breakdown and development of pulsed dielectric barrier discharges [PDF]

open access: yes, 2022
The impact of the electrode proximity on the streamer breakdown and development of pulsed-driven dielectric barrier discharges (DBDs) in a single-filament arrangement has been investigated in a gas mixture of 0.1 vol% O2 in N2 at 0.6 bar and 1.0 bar. The
Wubs, J.R.; id_orcid   +11 more
core   +1 more source

Comparative analysis of cellulose pressboard and aramid paper used in air insulation systems of high-voltage devices

open access: yesE3S Web of Conferences, 2017
The paper presents results of a comparative analysis of parameters of two kinds of solid dielectrics used in air insulation systems to prevent occurring partial discharges.
Turba Tomasz, Frącz Paweł
doaj   +1 more source

Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction

open access: yesIET Generation, Transmission & Distribution, 2022
A method of reconstructing the original partial discharge (PD) signal to improve the accuracy of PD localization in cross‐linked polyethylene (XLPE) cables is presented here.
Saike Yang   +5 more
doaj   +1 more source

Dielectric-Barrier Discharges. Principle and Applications

open access: yes, 1997
Dielectric-barrier discharges (silent discharges) are non-equilibrium discharges that can be conveniently operated over a wide temperature and pressure range.
B. Eliasson   +5 more
core   +1 more source

Repetitively pulsed gas discharges: memory effect and discharge mode transition

open access: yesHigh Voltage, 2020
Repetitively pulsed gas volume and dielectric surface discharges have gained growing attention because of peculiar and exciting physics phenomena, high efficiency, high reactivity, and potential to obtain conventionally unachievable plasma properties ...
Zheng Zhao, Jiangtao Li, Jiangtao Li
doaj   +1 more source

Effect of Conducting, Semi-Conducting and Insulating Nanoparticles on AC Breakdown Voltage and Partial Discharge Activity of Synthetic Ester: A Statistical Analysis

open access: yesNanomaterials, 2022
This paper is aimed at studying the influence of conducting (Fe3O4), semi-conductive (ZnO), and insulating (ZrO2, SiO2, and Al2O3) nanoparticles (NPs) at various concentrations on the AC dielectric strength of MIDEL 7131 synthetic ester (SE) and partial ...
Hocine Khelifa   +2 more
doaj   +1 more source

Numerical simulation of the breakdown process of dielectric in high voltage pulse discharge

open access: yesJournal of Physics: Conference Series, 2023
Abstract In order to study the breakdown process of the insulating medium of the needle-needle electrode under the action of high-voltage pulse discharge, the HV-LAB simulation software was used to study the discharge channel formed in the three kinds of insulating media, namely water, transformer oil, and air, and the three-dimensional ...
Gang Guo   +3 more
openaire   +1 more source

A Practical Method for Controlling the Asymmetric Mode of Atmospheric Dielectric Barrier Discharges

open access: yesApplied Sciences, 2020
Atmospheric pressure dielectric barrier discharges (DBDs) have been applied in a very broad range of industries due to their outstanding advantages. However, different discharge modes can influence the stability of atmospheric DBDs, such as the density ...
Ling Luo   +4 more
doaj   +1 more source

Core asymmetry influence on transmission line parameters of three‐core power cables

open access: yesIET Science, Measurement & Technology, 2021
Time‐domain reflectometry applied for power cable diagnostics employs transmission line parameters to determine signal shape and delay. This paper proposes to utilize pulse reflection measurement to evaluate the symmetry of a three‐core power cable as ...
Yan Li   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy