Results 21 to 30 of about 2,183 (305)

Breakdown Initiation and Electrical Strength of a Vacuum Insulating System in the Environment of Selected Noble Gases at AC Voltage

open access: yesEnergies, 2022
This paper presents the results of testing the electrical strength of an insulating system in a vacuum obtained from three noble gases: argon, neon, helium, and air. The breakdown voltages were measured for contact gaps of 1 mm and 2 mm. A difference was
Michał Lech, Paweł Węgierek
doaj   +1 more source

Dense Plasma Focus: physics and applications (radiation material science, single-shot disclosure of hidden illegal objects, radiation biology and medicine, etc.) [PDF]

open access: yes, 2015
The paper presents some outcomes obtained during the year of 2013 of the activity in the frame of the International Atomic Energy Agency Co-ordinated research project "Investigations of Materials under High Repetition and Intense Fusion-Relevant Pulses".
Chernyshova, M   +19 more
core   +1 more source

Experimental Investigation of the Prestrike Characteristics of a Double-Break Vacuum Circuit Breaker under DC Voltages

open access: yesEnergies, 2020
The prestrike phenomenon in vacuum circuit breakers (VCBs) is interesting but complicated. Previous studies mainly focus on the prestrike phenomenon in single-break VCBs. However, experimental work on prestrike characteristics of double-break VCBs cannot
Yun Geng   +7 more
doaj   +1 more source

Pressure Monitoring in Medium-Voltage Vacuum Interrupters

open access: yesEnergies, 2023
Innovation in the economy is closely tied to energy development, encompassing the exploration of new energy sources, increased energy production efficiency, and the integration of diverse energy sources for safe and effective supply to industries and ...
Paweł Węgierek   +4 more
doaj   +1 more source

System reliability analysis through corona testing [PDF]

open access: yes
A corona vacuum test facility for nondestructive testing of power system components was built in the Reliability and Quality Engineering Test Laboratories at the NASA Lewis Research Center. The facility was developed to simulate operating temperature and
Koutnik, E. A.   +2 more
core   +2 more sources

Successful fault current interruption on DC circuit breaker [PDF]

open access: yes, 2016
This study focus on the interruption capability of the DC circuit breaker employing a current commutation approach and evaluates the two main factors that determine the success rate for breaker current interruption, namely the current slope di/dt before ...
Finney, Stephen J.   +3 more
core   +1 more source

Effect of Potential Distribution of Main Shield on Internal Insulation Performance of Vacuum Interrupter

open access: yesShanghai Jiaotong Daxue xuebao
As an environmentally friendly switchgear technology, vacuum circuit breakers have a wide range of application prospects. However, both single and break vacuum circuit breakers face the issues of uneven potential distribution in the main shielding case ...
CHENG Xian, LI Guanjun, GE Guowei, DU Shuai, ZHANG Wanlong
doaj   +1 more source

Study on voltage distribution characteristic of a 363 kV fast multi-break vacuum circuit breaker

open access: yesThe Journal of Engineering, 2019
Vacuum circuit breaker (VCB) has a longer life and shorter opening time than SF(6) circuit breaker, but current single-break VCB cannot be applied in high-voltage power system directly.
Ai Shaogui   +5 more
doaj   +1 more source

Wind Turbine Fire Prevention System Using Fuzzy Rules and WEKA Data Mining Cluster Analysis

open access: yesEnergies, 2023
With the rapid expansion of the supply of renewable energy in accordance with the global energy transition policy, the wind power generation industry is attracting attention.
Jong-Hyun Kim   +4 more
doaj   +1 more source

One-Coil Long-Stroke Permanent Magnetic Actuator Design Applied to Load Breaker Switch for Railway

open access: yesApplied Sciences, 2022
This paper proposes a design for a one-coil long-stroke permanent magnet actuator (PMA) applied to a load breaker switch with a novel mechanism applicable to railways.
Seung-Jin Kim   +4 more
doaj   +1 more source

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