The Earth Fault Location Method Based on Additional Earthing of Healthy Phase in Compensated Networks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F14%3APU111149" target="_blank" >RIV/00216305:26220/14:PU111149 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Earth Fault Location Method Based on Additional Earthing of Healthy Phase in Compensated Networks

Popis výsledku v původním jazyce

This paper is focused on localization of an earth fault using short-time additional earthing of unaffected (healthy) phase in supply substation. This method uses additional second earth fault, which is created in supply substation, to increase the faultcurrent level for calculating the line reactance (distance) to fault point by a fault locator installed in outgoing feeder. Duration of this additional earth fault varies from 100 to 200 ms and is limited to value given by the time setting of overcurrentprotection. The functionality of the method was verified during field tests, which were performed in the actual distribution network where the automatic for additional earthing is installed under pilot project. In the paper, function of the method and realized experimental measurements are described, as well the accuracy of calculated distance to fault point is evaluated for solid, resistive and arcing earth fault for ideally compensated, overcompensated and undercompensated state of MV

Název v anglickém jazyce

The Earth Fault Location Method Based on Additional Earthing of Healthy Phase in Compensated Networks

Popis výsledku anglicky

This paper is focused on localization of an earth fault using short-time additional earthing of unaffected (healthy) phase in supply substation. This method uses additional second earth fault, which is created in supply substation, to increase the faultcurrent level for calculating the line reactance (distance) to fault point by a fault locator installed in outgoing feeder. Duration of this additional earth fault varies from 100 to 200 ms and is limited to value given by the time setting of overcurrentprotection. The functionality of the method was verified during field tests, which were performed in the actual distribution network where the automatic for additional earthing is installed under pilot project. In the paper, function of the method and realized experimental measurements are described, as well the accuracy of calculated distance to fault point is evaluated for solid, resistive and arcing earth fault for ideally compensated, overcompensated and undercompensated state of MV

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.30.0005" target="_blank" >EE2.3.30.0005: Podpora tvorby excelentních týmů mezioborového výzkumu na VUT</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

CIDEL Argentina 2014, International Conference on Electricity Distribution

ISBN

978-987-97399-6-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

CIDEL 2014

Místo vydání

Buenos Aires, Argentina

Místo konání akce

Buenos Aires

Datum konání akce

22. 9. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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