Determination of Network Impedance at the Place of Single-phase Load Connection

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

Determination of Network Impedance at the Place of Single-phase Load Connection

Popis výsledku v původním jazyce

As shown in the article, the asymmetry is directly proportional to the magnitude of single-phase power and indirectly proportional to three-phase short circuit power of system in the place of connection of load. In the article a ratio is derived betweenthe coefficient of the voltage asymmetry u, the single-phase load S1f and the three-phase short circuit power with improvement of Fortescue´s theory of symmetrical sequence components. With use of this relation is shown an idea to investigate the short circuit power from measured values of the coefficient of the voltage asymmetry u and single-phase load S1f.The results of verification measuring which was realised in a traction transformer substation of electric railways 25 kV; 50 Hz of the Czech railways are mentioned in the article too.

Název v anglickém jazyce

Determination of Network Impedance at the Place of Single-phase Load Connection

Popis výsledku anglicky

As shown in the article, the asymmetry is directly proportional to the magnitude of single-phase power and indirectly proportional to three-phase short circuit power of system in the place of connection of load. In the article a ratio is derived betweenthe coefficient of the voltage asymmetry u, the single-phase load S1f and the three-phase short circuit power with improvement of Fortescue´s theory of symmetrical sequence components. With use of this relation is shown an idea to investigate the short circuit power from measured values of the coefficient of the voltage asymmetry u and single-phase load S1f.The results of verification measuring which was realised in a traction transformer substation of electric railways 25 kV; 50 Hz of the Czech railways are mentioned in the article too.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Przeglad elektrotechniczny

ISSN

0033-2097

e-ISSN

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Svazek periodika

88

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

2

Strana od-do

264-265

Kód UT WoS článku

000308317800065

EID výsledku v databázi Scopus

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