Results 21 to 30 of about 52,062 (306)

Effects of ZnO magnetron sputtering on surface charge and flashover voltage of oil-impregnated paper

open access: yesHigh Voltage, 2019
With the aim of exploring an alternative method of nano-doping in cellulose paper and improving flashover strength of oil-impregnated paper, radio frequency (RF) magnetron sputtering method is introduced into the structural modification of insulating ...
Boxue Du   +4 more
doaj   +1 more source

Influence of frequency on the surface discharge characteristics of PEEK under positive repetitive square voltage

open access: yesHigh Voltage, 2020
In this study, the surface discharge current pulses of polyetheretherketone (PEEK) material under positive repetitive square voltage in a nitrogen atmosphere are measured.
Zhuodong Yang   +8 more
doaj   +1 more source

The Electrostatic Interaction of a Charged Particle with a Surface: The Effect of Surface Charge Rearrangement [PDF]

open access: yesJournal of Colloid and Interface Science, 2001
In this paper we investigate the electric interaction between a charged particle and a surface in which the charged ions are capable of moving in response to the electric potential disturbance caused by the approach of the charged particle. Such surfaces include ionic surfactants distributed in air-water interface and charged lipids in bilayer ...
Tsao, Heng-Kwong, Sheng, Yu-Jane
openaire   +2 more sources

Charge transport and accumulation around the cone-type insulator in SF(6)-filled 550 kV DC GIL

open access: yesThe Journal of Engineering, 2019
The gas-insulated transmission line (GIL) has the advantages of large transmission capacity, high operation reliability and environmental friendliness. It is suitable for the high voltage direct current (HVDC) power transmission of hydropower stations or
Bo Zhang   +5 more
doaj   +1 more source

Numerical Calculations of Charging Threshold at GEO Altitudes With Two Temperature Non‐Extensive Electrons

open access: yesSpace Weather, 2023
Surface charging at geosynchronous altitude is one of the major concerns for satellites and spacecrafts. Spacecraft anomalies are often associated with extreme surface charging events, especially during substorms in which the GEO plasma is better modeled
Saba Javed   +4 more
doaj   +1 more source

Effect of long-term fluorination on surface electrical performance of ethylene propylene rubber

open access: yesHigh Voltage, 2019
To investigate the effect of fluorination on surface electrical performance of ethylene propylene rubber (EPR), four pieces of EPR specimens are prepared and fluorinated for different duration ranging from 120 min to 480 min.
Rujia Men   +7 more
doaj   +1 more source

Effects of volume and surface conductivity on the surface charge and electric field characteristics of the tri‐post insulator in SF6‐filled ± 500 kV DC‐GIL

open access: yesIET Generation, Transmission & Distribution, 2023
Herein, the surface charge characteristics of a tri‐post insulator in a ± 500 kV direct current gas‐insulated transmission lines (DC‐GIL) filled with SF6 are thoroughly studied.
Xiaolong Li   +5 more
doaj   +1 more source

Surface charges toolkit for gravity [PDF]

open access: yesInternational Journal of Modern Physics D, 2020
These notes provide a detailed catalog of surface charge formulas for different classes of gravity theories. The present catalog reviews and extends the existing literature on the topic. Part of the focus is on reviewing the method to compute quasi-local surface charges for gauge theories in order to clarify conceptual issues and their range of ...
Ernesto Frodden, Diego Hidalgo
openaire   +2 more sources

Influence of moisture on the interface charge of oil–pressboard composite insulation under DC voltage

open access: yesHigh Voltage, 2018
The distortion of the electric field in the oil–pressboard composite insulation caused by the accumulation of the interface charge is detrimental to both the insulation design and operation of converter transformers.
Bo Qi   +5 more
doaj   +1 more source

Electrical discharge resistance of polymeric nanocomposites

open access: yesIET Nanodielectrics, 2021
The trend of choosing insulating materials has changed in the past few decades, and a considerable shift has occurred from conventional ceramic to non‐ceramic insulating materials.
Srijib Banerjee   +2 more
doaj   +1 more source

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