Results 21 to 30 of about 108,399 (163)

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

IET 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, Ahmed A. Abdul‐Aleem, Mohamed A. Izzularab   +2 more
doaj   +1 more source

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

Journal 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, WANG Jin-hui, JING Zi-ang, YAN Zhi-yu, HAN Bao-zhong   +4 more
doaj   +1 more source

Space charge and AC electric breakdown strength in polyethylene [PDF]

2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2015
Breakdown strength is an essential feature of dielectrics. Theoretically, the intrinsic strength is independent of the configuration of the dielectrics or electrodes and the category of applied electric fields. However, the measured breakdown strengths of a same material under direct high voltage (HVDC) and alternative high voltage (HVAC) are ...
Zhou, Churui, Chen, George
openaire   +2 more sources

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

Composites 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, Michael Lanagan, Dipankar Ghosh, Andrew Lottes, Kent Budd, Ramakrishnan Rajagopalan   +5 more
doaj   +1 more source

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

Molecules, 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, Murtada Saleh Aljawad, Mohamed Mahmoud, Olalekan Alade, Muhammad Shahzad Kamal, Ayman Al-Nakhli   +5 more
doaj   +1 more source

Measurements of Electric-Field Strengths in Ionization Fronts during Breakdown [PDF]

Physical Review Letters, 2007
Using laser-induced fluorescence-dip Stark spectroscopy, we performed time-resolved, direct measurements of electric-field strengths during the breakdown phase of a low-pressure, pulsed discharge in xenon. With this experimental technique we could for the first time quantitatively measure the time evolution of the driving force of the plasma breakdown ...
Wagenaars, E., Bowden, M.D., Kroesen, G.M.W.   +2 more
openaire   +3 more sources

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

Energies
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, Jian Guan, Xuri Xu, Zhen Zhang, Chuanyun Zhu, Chenyi Guo, Qifeng Shang, Yu Gao   +7 more
doaj   +1 more source

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

Energies, 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"

Hecheng 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

AIP 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, Shuang Cui, Tiandong Zhang, Meng Yang, Yongquan Zhang, Changhai Zhang, Qingquan Lei   +6 more
doaj   +1 more source