Results 11 to 20 of about 1,861 (307)

Rapid Breakdown Mechanisms of Open Air Nanosecond Dielectric Barrier Discharges [PDF]

Physical Review Letters, 2011
The discharge initiation mechanism of nanosecond dielectric barrier discharges in open air has been clarified with time-dependent measurement of the discharge electric field by electric-field-induced coherent Raman scattering and optical emission. Our experimental observations have revealed that, in the prebreakdown phase of a nanosecond dielectric ...
Ito, Tsuyohito, Kanazawa, Tatsuya, Hamaguchi, Satoshi   +2 more
openaire   +4 more sources

Short-term Breakdown and Long-term Failure in Nanodielectrics: A Review [PDF]

, 2010
Nanodielectrics, which are concentrated in polymer matrix incorporating nanofillers, have received considerable attention due to their potential benefits as dielectrics.
Yunxa Zhang, Yin, Guilai, Zhang, Yunxia, Guilai Yin, Suna Bai, Qingquan Lei, Jianying Li, Chen, George, Li, Jianying, Li, Shengtao, Bai, Suna, G. Chen, Zhong, Lisheng, Shengtao Li, Lisheng Zhong, Lei, Qingquan   +15 more
core   +1 more source

A Brief Review of the Impregnation Process with Dielectric Fluids of Cellulosic Materials Used in Electric Power Transformers

Energies, 2023
In the manufacturing of power transformers, the impregnation of the solid electric insulation systems (cellulosic materials) with a dielectric liquid is a key issue for increasing the breakdown voltage of the insulation, and this prevents the apparition ...
J. Sanz, C. J. Renedo, A. Ortiz, P. J. Quintanilla, F. Ortiz, D. F. García   +5 more
doaj   +1 more source

A Comparative Study of Physicochemical, Dielectric and Thermal Properties of Pressboard Insulation Impregnated with Natural Ester and Mineral Oil [PDF]

, 2011
Natural ester is considered to be a substitute of mineral oil in the future. To apply natural ester in large transformers safely, natural ester impregnated solid insulation should be proved to have comparable dielectric strength and thermal stability to ...
Yang, Lijun, Hao, Jian, Ruijin Liao, George Chen, Jian Hao, Liao, Ruijin, Ma, Zhiqin, Zhiqin Ma, Lijun Yang, Chen, George   +9 more
core   +1 more source

Spatiotemporal Characteristics of Radio Frequency Dielectric Barrier Glow Discharge at Atmospheric Pressure

Applied Sciences, 2021
In this paper, argon was used in radio frequency (13.56 MHz) dielectric barrier discharge (rf-DBD) at atmospheric pressure. The IV curve was recorded after gas breakdown, and discharge photos were captured by ICCD camera.
Sen Li, Jiazhen Sun, Rui Sun, Jie Pan, Lin Wang, Chen Chen, Qiang Chen, Zhongwei Liu   +7 more
doaj   +1 more source

Measurement of Partial Discharge Activities within Two Artificial Spherical Voids in an Epoxy Resin [PDF]

, 2011
Measurement of partial discharge activities within insulation systems has been extensively performed. It has been widely used in the performance assessment of an insulation system and for insulation diagnostics.
Illias, H A, H. A. Illias, G. Chen, Lewin, P L, Chen, G, P. L. Lewin   +5 more
core   +1 more source

Failure of submarine cables used in high‐voltage power transmission: Characteristics, mechanisms, key issues and prospects

IET Generation, Transmission & Distribution, 2021
This study reviews the failure of high‐voltage submarine cables used in offshore power transmission and provides highlights of their failure characteristic, mechanisms, key issues and prospects.
Weiwang Wang, Xilin Yan, Shengtao Li, Lina Zhang, Jun Ouyang, Xianfeng Ni   +5 more
doaj   +1 more source

Modelling of Positive Streamers in SF₆ Gas under Non-Uniform Electric Field Conditions: Effect of Electronegativity on Streamer Discharges

J, 2022
The use of SF6 in electrical insulation and fast-switching applications cannot be overemphasized. This is due to its excellent dielectric properties and high breakdown voltage, which are especially important for practical applications such as gas ...
Francis Boakye-Mensah, Nelly Bonifaci, Rachelle Hanna, Innocent Niyonzima, Igor Timoshkin   +4 more
doaj   +1 more source

The Simulation of Dielectric Barrier Discharge for Breakdown Voltage in Starch Modification

Applied Sciences, 2023
This paper presents the simulation results for dielectric barrier discharge (DBD) at atmospheric pressure in argon gas for different relative permittivity, granule shape, thickness layer, and granule diameter measurements for starch on the breakdown voltage. DBD is commonly utilized to generate cold plasma for starch modification.
Pitchasak Chankuson, Paramee Chumsri, Apinun Plodkaew   +2 more
openaire   +2 more sources

Partial Discharge Behaviour within Two Spherical Cavities in a Dielectric Material [PDF]

, 2011
In high voltage insulation systems, a typical defect that exists is a void cavity. It is known that voids are a common source of partial discharge (PD) activity within an insulation system.
Illias, H A, H. A. Illias, G. Chen, Lewin, P L, Chen, G, P. L. Lewin   +5 more
core   +1 more source