Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Dirk Uhrlandt"'
Autor:
Manuel De La Hoz, Petrus Jacobus Pieterse, Agurtzane Etxegarai, Diego Gonzalez, Ángel Javier Mazon, Dirk Uhrlandt
Publikováno v:
High Voltage, Vol 9, Iss 4, Pp 957-969 (2024)
Abstract When designing high‐voltage elements, knowing if the corona effect will be present during their life cycle is relevant. Therefore, designers consider several prediction criteria based on physical features related to breakdown discharge pri
Externí odkaz:
https://doaj.org/article/e65fd5ffa55c4052a5a5794887a826b3
Publikováno v:
Записки Горного института, Vol 251, Pp 738-744 (2021)
The article presents the principle of thermal protection of the contact overheadlineand substantiates the possibility of practical implementation of this principle for rail electric transport in the mining industry. The algorithm for the implementati
Externí odkaz:
https://doaj.org/article/717df727396d4532acd501f3af62a9c1
Publikováno v:
Energies, Vol 16, Iss 14, p 5353 (2023)
This paper discusses the influence of water ingress on the electrical discharges that arise on the surface of printed circuit boards that are developed for deep sea applications. The primary concern is the electrical discharges arising on the surface
Externí odkaz:
https://doaj.org/article/9ac705af95e34b578504220b655694d1
Publikováno v:
Energies, Vol 13, Iss 23, p 6377 (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 lengt
Externí odkaz:
https://doaj.org/article/9a39a88065624c4fada345c4734c24c8
Publikováno v:
Energies, Vol 13, Iss 18, p 4720 (2020)
Molecule radiation can be used as a tool to study colder regions in switching arc plasmas like arc fringes in contact to walls and ranges around current zero (CZ). This is demonstrated in the present study for the first time for the case of ablation-
Externí odkaz:
https://doaj.org/article/14d1d8327b984eab951362f3ae534468
Publikováno v:
Energies, Vol 13, Iss 18, p 4714 (2020)
Wall-stabilized arcs dominated by nozzle–ablation are key elements of self-blast circuit breakers. In the present study, high-current arcs were investigated using a model circuit breaker (MCB) in CO2 as a gas alternative to SF6 (gas sulfur hexafluo
Externí odkaz:
https://doaj.org/article/9bd298fa6c4849489ff2de1608400313
Autor:
Franz Hölker, Timothy Moss, Barbara Griefahn, Werner Kloas, Christian C. Voigt, Dietrich Henckel, Andreas Hänel, Peter M. Kappeler, Stephan Völker, Axel Schwope, Steffen Franke, Dirk Uhrlandt, Jürgen Fischer, Reinhard Klenke, Christian Wolter, Klement Tockner
Publikováno v:
Ecology and Society, Vol 15, Iss 4, p 13 (2010)
Although the invention and widespread use of artificial light is clearly one of the most important human technological advances, the transformation of nightscapes is increasingly recognized as having adverse effects. Night lighting may have serious p
Externí odkaz:
https://doaj.org/article/c12e7fe4b2694ee7ac7b25ea8258b4c4
Publikováno v:
Zapiski Gornogo Instituta, Vol 251, Pp 738-744 (2021)
В статье представлен принцип тепловой защиты контактной сети и обоснована возможность практической реализации этого принципа для рель
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::7d7424e12bed6d06654995d0906d284b
https://pmi.spmi.ru/index.php/pmi/article/view/14684
https://pmi.spmi.ru/index.php/pmi/article/view/14684
Publikováno v:
IEEE Transactions on Plasma Science. 49:2498-2504
The impact of current density on the anode attachment characteristics of high current vacuum arcs was investigated using high-speed imaging techniques. The current density determines the occurrence of attachment transition into an anode spot type 2.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b442022a57d8161aa542a42bde160901
https://doi.org/10.1109/tps.2021.3077393
https://doi.org/10.1109/tps.2021.3077393
Autor:
Dirk Uhrlandt, Sergey V. Popov, Alexander V. Batrakov, Sergey Gortschakow, Ralf Methling, Steffen Franke, D. Gonzalez
Publikováno v:
IEEE Transactions on Plasma Science. 49:2505-2515
This article presents the selected approaches of optical diagnostics applied to thermal arcs. Advanced methods for the determination of temperatures and species density distributions are described and examples of recent developments are presented, su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f42d75089adaef207f8d3e47bb47faa0
https://doi.org/10.1109/tps.2021.3096289
https://doi.org/10.1109/tps.2021.3096289