Results 101 to 110 of about 1,951 (227)

Lightning Surge Immunity of LED Road Luminaires: A Comparative Study of Hybrid SPD, EMI Filter, and TVS-Diode Protection Strategies

IEEE Access
This study presents an experimental evaluation of surge protection performance of a LED road luminaire subjected to standardized 8/ $20\mu $ s impulse stress.
Vasilios P. Androvitsaneas
doaj   +1 more source

Comparison of Surge Voltage Reduction and Economic Efficiency of DC SSCBs According to MOV and RCD Snubber Combination

IEEE Open Journal of the Industrial Electronics Society
Metal oxide varistor (MOV) is a nonlinear resistive element whose resistance decreases rapidly when the applied voltage exceeds a threshold value. A dc solid-state circuit breaker (SSCB) uses MOVs or MOV with resistor-capacitor-diode (RCD) snubber ...
Seong Jin Lim, Sung-Geun Song, Guangxu Zhou, Feel-Soon Kang   +3 more
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The development of hybrid surge protection circuit with effect of adding a filter [PDF]

, 2011
Surge protective device is a part of internal lightning protection and it crucially to divert the certain amount of surges to the ground before the protected load able to handle. Therefore, this paper studying the enhancement of SPD through the effect of
Ab Kadir, Mohd Zainal Abidin, Mohd Ariffen, Amizah, Wan Ahmad, Wan Fatinhamamah   +2 more
core  

First-principles study of a tilt grain-boundary in rutile [PDF]

[[abstract]]The atomic and electronic structure of a tilt grain boundary in rutile TiO2 has been calculated in an ab initio manner. The method employs a plane-wave basis set and optimized pseudopotentials and is carried out within the local-density ...
D. M. Ceperley, D. Sanchez-Portal, E. Tarnow, G. P. Srivastava, H. J. Monkhorst, I. Dawson, J. A. White, K. M. Glassford, K. S. Koto, L. Hozer, L. J. Clarke, L. Kleinman, M. C. Payne, M. C. Payne, M. D. Segall, M. J. Gillan, M. Kohyama, M.-H. Lee, P. D. Bristowe, P. Perdew, P. Pulay, R. P. Feynman, R. S. Mulliken, S.-D. Mo, U. Dahmen, W. H. Press, W.-Y. Lee   +26 more
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Effects of Dopants and Processing Parameters on the Properties of ZnO-V₂O₅-Based Varistors Prepared by Powder Metallurgy: A Review. [PDF]

Materials (Basel), 2023
Lungu MV.
europepmc   +1 more source

Electromigration Degradation Model of Metal Oxide Varistor Structures

Ukrainian Journal of Physics, 2012
Наведено результати моделювання впливу міграції іонів у напівпровідникових кристалітах оксиду цинку при тривалому протіканні робочого електричного струму на вольт-амперні характеристики варисторних структур і визначення умов та параметрів, придатних для контролю процесу їхньої незворотної деградації.
Ivanchenko, A.V., Tonkoshkur, A.S.
openaire   +1 more source

STUDY ON SURGE ARRESTER PERFORMANCE DUE TO LIGHTNING STROKE IN 20 KV DISTRIBUTION LINES [PDF]

, 2009
Abstrak Electric energy has been transmiting from power station to end user with transmission and distribution lines. Lightning strokes are problems that occure in transmission and distribution lines and make them fault when the electric energy were ...
Liliyana NS, Liliyana NS, Syakur, Abdul, Warsito, Agung   +2 more
core  

Small Polarons in Transition Metal Oxides

, 2019
The formation of polarons is a pervasive phenomenon in transition metal oxide compounds, with a strong impact on the physical properties and functionalities of the hosting materials.
A Janotti, A Locatelli, A M Stoneham, A. C. Papageorgiou, AI Liechtenstein, AL Linsebigler, Alexandre S. Alexandrov, AR Elmaslmane, Axel D. Becke, B Gerlach, B Gerlach, B Meredig, B Ramberger, BJ Morgan, BS Brunschwig, C Franchini, C Freysoldt, C Verdi, C. Crevecoeur, CJ Calzado, Clelia Spreafico, D Ermin, Daniele Cortecchia, E Bertel, E Possenriede, E Salje, EI Rashba, F Aryasetiawan, F Giustino, FA Grant, G Henkelman, G Kresse, H Fröhlich, H Fröhlich, H Onishi, H Onishi, H. M. Rønnow, H.L. Tuller, Hiroshi Onishi, J Janak, J To, JH Crawford, Jiangang He, JMD Teresa, John P. Perdew, JP Perdew, JT Devreese, K Miyata, K Reuter, L Kronik, L Sun, LD Landau, M Nolan, M Reticcioli, M Reticcioli, M Setvin, M Setvin, N Bondarenko, N F Mott, NA Deskins, NA Deskins, NA Deskins, Nikolai V. Prokof'ev, NW Ashcroft, O Gunnarsson, P Deák, P Krüger, P Krüger, P. Nagels, PG Moses, PM Kowalski, Q Wang, R. Ramakumar, R. Rosenfelder, R.A. Marcus, RP Feynman, S Chambers, S Lany, S Lany, S Lenjer, S Moser, S Yang, S Yang, SL Dudarev, Stephan Lany, SX Zhang, T Holstein, T Maxisch, T Shibuya, T. Holstein, U Diebold, VI Anisimov, VI Anisimov, W Chen, Wen-Jin Yin, X Hao, Zhi-Hao Cui   +96 more
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A voltage-clamped bidirectional fault current limiter based on a three-winding coupled inductor for DC power grids

International Journal of Electrical Power & Energy Systems
The DC fault is a serious challenge to voltage-source-converter-based HVDC (VSC-HVDC) systems, and the fault current limiter (FCL) is one of the key measures to solve the DC fault and reduce the capacity of the DC circuit breaker.
Ziao Yuan, Siyuan Liu, Jinchao Chen, Zhiyuan Liu, Yingsan Geng   +4 more
doaj   +1 more source

Degradación y recuperación de varistores de ZnO

Boletín de la Sociedad Española de Cerámica y Vidrio, 2006
In the present work it was studied the main aspect that influences on degradation and physical-chemical properties at grainboundary region of metal oxide varistors and its consequences on microstructure and nonohmic electric properties.
Ramírez, M. A., Bueno, P. R., Valera, J. A., Márquez, M. A.   +3 more
doaj