Results 21 to 30 of about 1,922,299 (197)

Electrical properties evaluation of double‐layer nano‐filled oil‐paper composites

open access: yesIET Science, Measurement & Technology, 2021
Oil‐paper composite is the main insulation system in oil‐filled transformers. In recent years, the use of nanotechnology to improve the electrical and thermal properties of transformer oil has become a field of research interest.
Amr M. Abd‐Elhady   +2 more
doaj   +1 more source

The Effect of Antioxidant and Graphite Nanoplatelet on DC Breakdown and Space Charge of Cross-linked Polyethylene

open access: yesJournal of Harbin University of Science and Technology, 2018
To study the effect of antioxidant and graphite nanoplatelets ( GNPs) on the direct current ( DC) dielectric properties of cross-linked polyethylene ( XLPE ) ,antioxidant /XLPE and GNPs/antioxidant /XLPE composites were prepared by melt blending method ...
ZHANG Cheng-cheng   +4 more
doaj   +1 more source

Improved thermal conductivity and AC dielectric breakdown strength of silicone rubber/BN composites

open access: yesComposites Part C: Open Access, 2020
The present study demonstrates a synergistic effect with the addition of low loading levels of boron nitride filler in silicone rubber that resulted in significant improvement in both ac breakdown strength and thermal conductivity of silicone rubber ...
Maryam Sarkarat   +5 more
doaj   +1 more source

Reduction of Breakdown Pressure by Filter Cake Removal Using Thermochemical Fluids and Solvents: Experimental and Numerical Studies

open access: yesMolecules, 2021
The process of well cleanup involves the removal of an impermeable layer of filter cake from the face of the formation. The inefficient removal of the filter cake imposes difficulty on fracturing operations.
Zeeshan Tariq   +5 more
doaj   +1 more source

Prediction of DC Breakdown Strength for Polymer Nanocomposite Based on Energy Depth of Trap

open access: yesEnergies
Understanding the role of carrier traps in the determination of dielectric breakdown of polymer nanocomposite would yield a novel method for the estimation of breakdown strength of the material.
Xiaohu Qi   +7 more
doaj   +1 more source

Dielectric Strength of Polymeric Solid–Solid Interfaces under Dry-Mate and Wet-Mate Conditions

open access: yesEnergies, 2021
One of the most important causes of insulation system failure is the breakdown of the interface between two solid dielectrics; understanding the mechanisms governing this breakdown phenomenon is therefore critical.
Emre Kantar
doaj   +1 more source

"Effect of rolling line speed on properties of chloroprene rubber/ fiberglass cloth composite adhesive tape"

open access: yesHecheng xiangjiao gongye
The effects of rolling line speed on process property, interlayer bonding strength, and breakdown strength of chloroprene rubber (CR) layer and impregnated fiberglass cloth composite adhesive tapes were investigated, and the composite was analyzed and ...
"ZHANG Zhiguang, XIE Jinghui, CAO Zheng, HUANG Jiangbiao, HUANG Zihua, WANG Jin, ZHENG Yong, GU Yuan, YANG Jun"
doaj   +1 more source

Nonlinear conductivity and breakdown strength characteristics of silicon carbide and hexagonal boron nitride co-doped epoxy resin composites

open access: yesAIP Advances, 2020
In this study, the method of co-doping semi-conductor silicon carbide (SiC) and insulating inorganic phase hexagonal boron nitride (h-BN) in epoxy resin (EP) composites has been proposed for considering both the nonlinear conductivity and the breakdown ...
Qingguo Chi   +6 more
doaj   +1 more source

Synergistic improved electrical resistivity-temperature characteristics and DC breakdown strength in insulating XLPE composites by incorporating positive temperature coefficient particles

open access: yesPolymer Testing, 2023
Weakening the electrical resistivity-temperature dependence of cross-linked polyethene (XLPE) is an effective way to enhance the electric field uniformity of high-voltage direct current (HVDC) cables.
Guimin Jiang   +6 more
doaj   +1 more source

Effect of Thickness on the Space Charge Behavior and DC Breakdown Strength of Cross-Linked Polyethylene Insulation

open access: yesIEEE Access, 2020
In high voltage direct current (HVDC) cable systems, study of electric field distortion created by space charge accumulation is very important for examining insulation performance.
Zhipeng Ma   +4 more
doaj   +1 more source

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