Results 41 to 50 of about 2,217,215 (210)
Materials and Corrosion, EarlyView.Schematic representation of the operando ICP‐OES setup during the electrochemical experiment (left). Resulting plot showing the dissolution of the individual alloy components of AA7075 as a function of applied potential in 10 mM NaCl (right). ABSTRACT This publication deals with the simultaneous acquisition of electrochemical and inductively coupled ...
Claudia Kutzer‐Schulze +2 more
wiley +1 more source
DEVELOPMENT OF AUTOMATION OF PROTECTION OF THE HOME ELECTRICITY OF POWER-PLANTS [PDF]
Biomedicinskaâ Inženeriâ i Èlektronika, 2017 The main types and classification of safety fuses are considered. The advantages of a grid protection network against overload are highlighted. The methodology and the scheme of the home network protection automaton from overload are presented.
Novikova L.V. +2 more
doaj +1 more source
Small Methods, EarlyView.The formation and evolution of the solid electrolyte interphase on hard carbon electrodes is tracked at defined states of charge during the first galvanostatic cycle in sodium half‐cells. Combining SEM/EDS, XPS, ToF‐SIMS, SECM, and c‐AFM reveals how the SEI's morphology, chemistry, and interfacial reactivity develop during sodiation and partially ...
David Schäfer +4 more
wiley +1 more source
Probe on Problems of Combined Overvoltage Protector in Lightning Protectio
Gong-kuang zidonghua, 2012 The paper analyzed accidents in application of combined overvoltage protector in a substation in Yangquan mining area of Shanxi province and a pumped storage power station in Hubei province. It introduced principle and working characteristics of combined
YI Xiao-fei +3 more
doaj
IEEE Transactions on Power Delivery, 2020 One of the most critical faults affecting modular multilevel converter (MMC) based bipolar high-voltage direct-current (HVDC) transmission systems is the single-phase-to-ground (SPG) faults between the converter transformer and the valve.
Gen Li +5 more
semanticscholar +1 more source
High Voltage, EarlyView.ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang +5 more
wiley +1 more source
Study on overvoltage of hybrid LCC-VSC-HVDC transmission
The Journal of Engineering, 2018 Hybrid line commutation converter-voltage-source converter high-voltage direct current transmission (LCC-VSC-HVDC) power transmission has unique technical advantages, but its overvoltage study is not sufficient at present.
Dizhen Xu +4 more
doaj +1 more source
Rare Lightning and Convection Characteristics During Two Successive Tornadoes in Southern China
High Voltage, EarlyView.ABSTRACT Systematic investigations into lightning characteristics of tornado storms in China remain scarce. This study comprehensively analyses rare lightning behaviour and overshooting top characteristics for two successive tornadoes during a long‐lived supercell in southern China on 27 April 2024.
Fengquan Li +9 more
wiley +1 more source
Study of Switching Overvoltage Protection Measures for Capacitor Compensation Device
Kongzhi Yu Xinxi Jishu, 2014 The harm of using damping and limiting measures to eliminate switching overvoltage of FC device was analyzed in theory and simulation. It presents that input overvoltage protection mainly depends on the insulation capability of the device and the effect ...
JIANG Jiajiu +4 more
doaj
Journal of Modern Power Systems and Clean Energy, 2017 Transient stability of doubly-fed induction generators (DFIGs) is a major concern in both AC and DC grids, and DFIGs must stay connected for a time during grid faults according to the power grid requirements.
Shaomin YAN +4 more
doaj +1 more source