Results 51 to 60 of about 47,401 (167)

Study on the Direct Current Breakdown Characteristics and Influence of Electric Field Distribution in Water Droplets in Rod–Plate Air Gaps

open access: yesApplied Sciences
This study primarily simulates the flashover phenomenon between the metal fittings (rods) and the skirt surface (plates) of insulators when water droplets traverse between them under heavy rain conditions.
Jianli Zhao   +4 more
doaj   +1 more source

Study on the influence of O2 on the breakdown voltage and self-recovery characteristics of c-C4F8/N2 mixture

open access: yesAIP Advances, 2018
The c-C4F8 gas is considered to have great potential as a gaseous medium for use in gas-insulated equipment due to its good insulation properties and its relatively low greenhouse gas potential (Global warming potential, GWP) relative to SF6.
Song Xiao   +6 more
doaj   +1 more source

Electrical Discharge Triggered Breakdown Phenomena in Main Gap

open access: yesInternational Journal of Electrical Engineering and Applied Sciences, 2018
In high-voltage techniques, electrical discharges represent complex problem. The results of the research on the breakdown phenomena in high voltage electrical apparatus insulated by gas can be employed to obtain external and internal insulation design ...
abderrahmane settaouti
doaj  

2 kV Al0.64Ga0.36N-channel high electron mobility transistors with passivation and field plates

open access: yesApplied Physics Express
High voltage (∼2 kV) Al _0.64 Ga _0.36 N-channel high electron mobility transistors were fabricated with an on-resistance of ∼75 Ω. mm (∼21 mΩ. cm ^2 ). Two field plates of variable dimensions were utilized to optimize the breakdown voltage.
Md Tahmidul Alam   +7 more
doaj   +1 more source

Comparison of Aging Effect of Ester Liquids and Mineral Oil in Semi-Uniform Field Geometry under Lightning Impulse Voltage and Standard Compliant AC Voltage Testing

open access: yesEnergies
This study examines and compares the breakdown and aging properties of five insulating liquids. Additionally, the influence of different voltage polarities on these properties was analyzed to investigate the effect of aging on polarity behavior under ...
Sabrina Krügel, Ronald Plath
doaj   +1 more source

Characteristics and Breakdown Behaviors of Polysilicon Resistors for High Voltage Applications

open access: yesAdvances in Condensed Matter Physics, 2015
With the rapid development of the power integrated circuit technology, polysilicon resistors have been widely used not only in traditional CMOS circuits, but also in the high voltage applications.
Xiao-Yu Tang, Ke Dong
doaj   +1 more source

Experimental Study on Breakdown Characteristics of Transformer Oil Influenced by Bubbles

open access: yesEnergies, 2018
Bubbles will reduce the electric strength of transformer oil, and even result in the breakdown of the insulation. This paper has studied the breakdown voltages of transformer oil and oil-impregnated pressboard under alternating current (AC) and direct ...
Chunxu Qin   +5 more
doaj   +1 more source

Impulse Breakdown Characteristics of Main Gap in the Presence of a Local Discharge

open access: yesJournal of Applied Science & Process Engineering, 2019
The characteristics of impulse breakdown voltages and the influence of the position of third electrode in air gap are investigated experimentally to study the parameters influencing the breakdown voltage in the presence of metallic objects around the ...
Abderrahmane Settaouti
doaj   +1 more source

Breakdown Characteristics of Oil-Pressboard Insulation under AC-DC Combined Voltage and Its Mathematical Model

open access: yesEnergies, 2018
An AC-DC combined voltage is applied to the oil-pressboard insulation near the valve side during the operation of a converter transformer. To study the breakdown characteristics of an oil-pressboard insulation under such voltages, a typical plate ...
Qingguo Chen   +3 more
doaj   +1 more source

Statistical inferences for breakdown voltages

open access: yesIEEE Transactions on Dielectrics and Electrical Insulation, 2000
This paper examines some analysis of breakdown voltages, and gives diagrams and arguments to support re-analysis of the relevant data sets, again using the three parameter Weibull distribution. The paper shows that graphical means provide a useful method for examining the log-likelihood of data, particularly when careful examination of this function is
openaire   +3 more sources

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