Results 61 to 70 of about 8,801 (231)

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

Designing Memristive Materials for Artificial Dynamic Intelligence

Advanced Intelligent Discovery, Volume 2, Issue 1, February 2026.
Key characteristics required of memristors for realizing next‐generation computing, along with modeling approaches employed to analyze their underlying mechanisms. These modeling techniques span from the atomic scale to the array scale and cover temporal scales ranging from picoseconds to microseconds. Hardware architectures inspired by neural networks
Youngmin Kim, Ho Won Jang
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

Coupling of Engineered High Entropy Alloys with Semiconducting TiO2 Nanofilms for Scalable and Ultrafast Alkaline Hydrogen Evolution Reaction

Advanced Science, Volume 13, Issue 2, 9 January 2026.
A facile and scalable strategy is presented to fabricate high‐performance hybrid photoelectrocatalysts combining PtFeCoNiCu HEA and TiO2–NFs via sequential anodization and electrodeposition, achieving an ultralow overpotential of –11 mV at η10 and excellent thermal stability. Abstract High entropy alloys (HEAs) are a promising class of electrocatalysts
Zichu Zhao, Yanzhang Zhao, Wen‐Qiang Wang, Xiaying Xin, Yan Jiao, Andrew D. Abell, Cheryl Suwen Law, Abel Santos   +7 more
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

Catastrophic Degradation in Solid Oxide Fuel Cells Caused by Air Supply Interruption in Real‐World Operations: Fundamental Mechanisms and Mitigation Strategies

Advanced Science, Volume 13, Issue 3, 14 January 2026.
Interrupting the air supply during the operation of solid oxide fuel cells leads to irreversible chemical degradation of the cathode materials, primarily driven by strontium at the A‐site of perovskite structures. Alternative strontium‐free materials effectively address this issue, ensuring high performance and reliable operation during operational ...
Haewon Seo, Ji‐eun Won, Wooseok Lee, Haneul Choi, Sun‐Young Park, Younghun Shin, Insung Lee, Tae Jin Lim, Kyeounghak Kim, Jongsup Hong, Hye Jung Chang, Kyung Joong Yoon   +11 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