Results 21 to 30 of about 1,975,648 (366)

Investigation on Charge Transport in Polypropylene Film under High Electric Field by Experiments and Simulation

open access: yesEnergies, 2021
The charge transport in polypropylene was studied under DC electric fields at different temperatures. By the experimental measurement and simulation of the BCT model, we studied conduction currents, breakdown strength, and space charge distribution.
Xiying Dai   +5 more
doaj   +1 more source

Numerical Modeling of the Effects of Pore Characteristics on the Electric Breakdown of Rock for Plasma Pulse Geo Drilling

open access: yesEnergies, 2021
Drilling costs can be 80% of geothermal project investment, so decreasing these deep drilling costs substantially reduces overall project costs, contributing to less expensive geothermal electricity or heat generation. Plasma Pulse Geo Drilling (PPGD) is
Mohamed Ezzat    +3 more
semanticscholar   +1 more source

Numerical simulation study of rock breaking mechanism by high voltage electric pulse

open access: yes矿业科学学报, 2023
High-voltage electric pulse(HVEP)drilling has become a new and efficient rock breaking method, which is also the research focus in the field of drilling speed increase.
Liu Weiji   +3 more
doaj   +1 more source

Investigation of impact of DC component on breakdown characteristics for different electric fields under composite AC & DC voltage

open access: yesHigh Voltage, 2022
The valve side of the converter in the high‐voltage direct current is subjected to mixed voltages such as composite AC & DC voltage. In this study, the effects of the homogeneity of electric field on breakdown voltage were investigated for different ±DC ...
Mehmet Murat Ispirli   +4 more
doaj   +1 more source

Effect of electric pulse on functional groups and methane adsorption characteristics of anthracite coal

open access: yesMeikuang Anquan, 2022
The experiment of electric pulse cracking of anthracite coal from Jiaozishan Coal Mine in Guizhou Province was carried out by using the electric pulse experimental system of fracturing and enhancing permeability of coal.
YAN Fazhi   +5 more
doaj   +1 more source

Influence of micro‐water on AC breakdown characteristics of C4F7N/CO2 gas mixture under non‐uniform electric field

open access: yesHigh Voltage, 2022
The application of eco‐friendly C4F7N/CO2 gas mixture has become a hot topic in the power industry. To obtain the influence law of micro‐water on the AC insulation characteristics of C4F7N/CO2 gas mixture, breakdown tests were carried out under different
Yuan Yang   +5 more
doaj   +1 more source

Microwave breakdown of sub-atmospheric argon gas in the vicinity of a microgap

open access: yesAIP Advances, 2022
The microwave electric field at breakdown for argon gas in a microgap (generally, gap size
M. E. Castelan Hernandez   +6 more
doaj   +1 more source

Breakdown property of ±320 kV HVDC cable system XLPE/EPDM accessories

open access: yes电力工程技术, 2023
In high voltage direct current cable system, the cable joint and termination are the weakness to stand high voltage, thus making their breakdown strength the critical property to the reliability of power transmission system.
LIU Yongbin   +5 more
doaj   +1 more source

Size and temperature effects on dielectric breakdown of ferroelectric films

open access: yesJournal of Advanced Ceramics, 2021
The paper introduces a model of dielectric breakdown strength. The model integrated thermal breakdown and defect models, representing the relationship between the electric field of ferroelectric films and dimensional parameters and operating temperature.
Sheng Tong
doaj   +1 more source

Combined breakdown of a dielectric nanolayer to form a Josephson bridge [PDF]

open access: yes, 2022
Electrical breakdown of a dielectric nanolayer between film electrodes under the combined action of direct current and capacitor discharge current makes it possible to form Josephson bridges with a reproducible resistance exceeding 1 {\Omega}. A new feature of the formation of a bridge during electrical breakdown, which is preceded by a series of ...
arxiv   +1 more source

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