Results 21 to 30 of about 13,323 (257)
Electrical Modelling of Switching Arcs in a Low Voltage Relay at Low Currents
Energies, 2020 The arc behaviour of short, low current switching arcs is not well understood and lacks a reliable model. In this work, the behaviour of an arc in the air is studied during contact separation at low DC currents (0.5 A to 20 A) and for small gap lengths ...
Ammar Najam +2 more
doaj +1 more source
A Method of DC Arc Detection in All-Electric Aircraft
Energies, 2020 Arc faults in an aircraft’s power distribution system (PDS) often leads to cable and equipment damage, which seriously threatens the personal safety of the passengers and pilots.
Teng Li, Zhijie Jiao, Lina Wang, Yong Mu
doaj +1 more source
Research on the Fire Risk of Photovoltaic DC Fault Arcs Based on Multiphysical Field Simulation
EnergiesWith the rapid growth of photovoltaic power generation systems, fire incidents within the system have progressively increased. The lack of thorough studies on the temperature properties of direct current (DC) arc faults has resulted in an unclear ...
Zhenhua Xie +5 more
doaj +1 more source
Review of discharge theory and numerical research on intrinsically safe low voltage DC circuits
Gong-kuang zidonghua, 2022 The discharge characteristics of intrinsically safe resistive, inductive and capacitive circuits are analyzed. It is pointed out that inductive and capacitive circuits have larger discharge energy and more complex discharge waveforms.
ZHU Lin +3 more
doaj +1 more source
Modeling of a DC Electric Arc Furnace. Heat Transfer from the Arc.
ISIJ International, 2000 A mathematical model describing heat and fluid flow in an electric arc has been developed and used to predict heat transfer from the arc to the steel bath in a DC Electric Arc Furnace. The arc model takes the separate contributions to the heat transfer from each involved mechanism into account, i.e.
Jonas Alexis +3 more
openaire +2 more sources
Comparison and analysis of the fault arc characteristics of flexible DC transmission lines
The Journal of Engineering, 2019 VSC-HVDC grid is one of the important development directions of the smart grid in the future. The arc characteristics of transient fault on the transmission line are the theoretical basis for determining reclosing time and reclosing strategy of DC ...
Botong Li +3 more
doaj +1 more source
Simulation and Experimental Research on Arc-Induced Fires in Photovoltaic Systems
EnergiesDC fault arcs comprise one of the most serious safety hazards in photovoltaic systems, and their danger far exceeds that of AC arcs. DC arcs lack a natural zero-crossing point, and their burning time can last from several seconds to several minutes ...
Runan Song +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge +8 more
wiley +1 more source
Analysis of flow and heat-transfer characteristics of DC-RF hybrid plasma based on turbulence model
He jishu, 2023 BackgroundDirect-current radiofrequency (DC-RF) hybrid plasma has broad application prospects in the field of nuclear ultrafine powder material preparation owing to its characteristics of high temperature and high chemical activity.PurposeThis study aims
CHEN Wenbo +4 more
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Advanced Functional Materials, EarlyView.In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang +4 more
wiley +1 more source