Short circuit forces acting on the shielded three-phase line

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Short circuit forces acting on the shielded three-phase line

Popis výsledku v původním jazyce

One of the serious tasks, that designer of heavy current equipment has to solve, is a sufficient mechanical fixing of electrical supply when exposed to short circuit forces. One method of reducing the values of the short circuit forces is the shielding of current-carrying conductors. Shielding is usually realized in such a way that the conductors are put in steel pipes of appropriate forms. This causes that short-circuit current carrying conductors are in a relatively weak magnetic field and, therefore,the Lorentz force acting on them is substantially weaker compared with unshielded conductors. The calculation of short-circuit forces for such a case was carried out for three-phase symmetrical line. The main disadvantage of the above method of shielding consists in the fact that eddy current losses produced in the shielding pipes contribute to heating of wires. Between the pipe and conductor, there is an air gap preventing the transfer of heat. The Lorentz forces acting on the wires we

Název v anglickém jazyce

Short circuit forces acting on the shielded three-phase line

Popis výsledku anglicky

One of the serious tasks, that designer of heavy current equipment has to solve, is a sufficient mechanical fixing of electrical supply when exposed to short circuit forces. One method of reducing the values of the short circuit forces is the shielding of current-carrying conductors. Shielding is usually realized in such a way that the conductors are put in steel pipes of appropriate forms. This causes that short-circuit current carrying conductors are in a relatively weak magnetic field and, therefore,the Lorentz force acting on them is substantially weaker compared with unshielded conductors. The calculation of short-circuit forces for such a case was carried out for three-phase symmetrical line. The main disadvantage of the above method of shielding consists in the fact that eddy current losses produced in the shielding pipes contribute to heating of wires. Between the pipe and conductor, there is an air gap preventing the transfer of heat. The Lorentz forces acting on the wires we

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 19th International Symposium on High Voltage Engineering (ISH 2015)

ISBN

978-80-261-0476-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

1-4

Název nakladatele

Západočeská univerzita

Místo vydání

Plzeň

Místo konání akce

Plzeň, Česká republika

Datum konání akce

23. 8. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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