Results 61 to 70 of about 8,814 (230)

Analysis of the Vacuum Arc Interruption Process in Aviation Intermediate-Frequency Power Supply Systems

Energies, 2017
In this paper, we present our research into the interruption performance of vacuum circuit breakers in aviation intermediate-frequency (360 Hz to 800 Hz) power supply systems. Intermediate-frequency vacuum arc experiments were carried out in interrupters
Yuan Jiang, Jianwen Wu, Mingxuan Chen, Wenlei Huo   +3 more
doaj   +1 more source

Post‐Consumer Mechanical Recycling of Thermally Degraded Glass‐Fiber Reinforced Polyamide 6,6 for Electrical Applications

Macromolecular Materials and Engineering, Volume 311, Issue 4, April 2026.
Post‐consumer mechanical recycling of PA66–GF composite with brominated flame‐retardant is assessed using accelerated thermal ageing to reproduce long‐term thermo‐oxidative degradation typical of electrical devices. Property retention is quantified across virgin, aged, recycled, and diluted recycled states through mechanical testing, microscopy, DSC ...
Alessandro Salvi, Irem Cemre Doğaner, Andrés Eguren Pita, Marlena Ostrowska, Giovanni Dotelli   +4 more
wiley   +1 more source

Online Monitoring Method for Opening and Closing Time of 10 kV Spring Energy Storage Circuit Breaker Based on Transient Electrical Signal Characteristic Point Marking and Self-Calibration

Energies
Among all circuit breaker faults, mechanical failures account for a considerable proportion, and online monitoring of their mechanical characteristics is of great practical significance.
Liting Weng, Jiangtao Xiao, Zhaochuang Zhang, Jingang Wang, Yuchuan Wen, Fan Zhang, Xingyu Zhang, Lingyi Ma, Pengcheng Zhao   +8 more
doaj   +1 more source

The Influence of Mechanical Deformation Consideration on the Results of the Calculation of the Vacuum Circuit Breaker Drive Shaft

Journal of Mechanical Engineering, 2023
One of the important directions of theoretical, computational and experimental research related to the improvement and development of new design elements of modern electrical devices, primarily medium voltage circuit breakers and contactors, is the study
Yevhen I. Baida, Mykhailo H. Panteliat, Artem O. Kuzmin   +2 more
doaj   +1 more source

Electrocatalysts Beyond Copper for CO2 Reduction to Multicarbon Products From Systematic First Principle‐Based Screening

ChemCatChem, Volume 18, Issue 5, 13 March 2026.
Density functional theory‐based screening of bimetallic alloys identified several promising compositions for electrochemical CO2 reduction to be tested experimentally. Collaterally, fundamental trends in the stability and catalytic properties of bimetallic alloys were identified, which highlight specific properties of the investigated transition and ...
Georg Kastlunger
wiley   +1 more source

Research of Health Diagnosis Strategy with Neural Network of Vacuum Circuit Breakers of 10 kV Switchgear

Gong-kuang zidonghua, 2011
In order to solve problems of lack maintenance and blind repair existed in vacuum circuit breakers of 10 kV switchgear , the paper put forward a health diagnosis strategy of vacuum circuit breaker of 10 kV switchgear based on RBF neural network on basis ...
HE Lan, LIU Xing, WANG Dan-dan
doaj  

Analysis of Arc Re-Ignition in Vacuum Interrupter-Based HVdc Circuit Breakers

IEEE Access
The protection of HVdc systems has long been challenged by the absence of natural current zero-crossing, typically addressed using L-C branches. However, the phenomenon of multiple arc reignitions in vacuum interrupter (VI) based HVdc circuit breakers ...
Tamer Eliyan, Ali Saeed Almuflih, Z. M. S. Elbarbary, Fady Wadie   +3 more
doaj   +1 more source

Bridging Plasma Dynamics and Reaction Engineering: A Framework for Predictable CO2 Conversion in Rotating Non‐Thermal Arcs

Chemistry–Methods, Volume 6, Issue 3, March 2026.
This study combines theoretical and experimental approaches to systematically link plasma dynamics with reaction engineering. A novel reactor design with laminar gas flow and magnetically induced nonthermal plasma rotation enables precise determination of residence times and effective plasma volumes.
Samuel Jaro Kaufmann, Joe Quade, Johanna Buschmann, Jens Meyer, Kai Peter Birke, Paul Rößner   +5 more
wiley   +1 more source

A fuse‐based DC circuit breaker with vacuum interrupter enhanced by an external transverse magnetic field

High Voltage
Due to the increasing power system capacity, the interruption of large fault currents has gradually become a major challenge in power systems. At the moment, such currents are interrupted mainly via circuit breakers based on the method of active current ...
Yu Xiao, Yi Wu, Yifei Wu, Fei Yang, Mingzhe Rong, Zhuo Yang   +5 more
doaj   +1 more source

Pressure estimation in vacuum circuit breakers

IEEE Transactions on Dielectrics and Electrical Insulation, 1995
The pressure of vacuum switching elements after production is checked normally by Penning or magnetron methods (combined electrical and magnetic field). Vacuum in the range of 10-1 to 10-4 Pa can be measured in this way. After assembly into circuit breakers however, these methods are not applicable. HF interruption performance during the make operation
Damstra, G.C., Smeets, R.P.P., Poulussen, H.B.F.   +2 more
openaire   +1 more source