Earth fault location based on evaluation of voltage sag at secondary side of medium voltage/low voltage transformers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F15%3APU114826" target="_blank" >RIV/00216305:26220/15:PU114826 - isvavai.cz</a>

Result on the web

<a href="http://ietdl.org/t/CNR93" target="_blank" >http://ietdl.org/t/CNR93</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1049/iet-gtd.2014.0460" target="_blank" >10.1049/iet-gtd.2014.0460</a>

Result language

angličtina

Original language name

Earth fault location based on evaluation of voltage sag at secondary side of medium voltage/low voltage transformers

Original language description

The main reasons for installation of power quality meters in distribution transformer substations are power quality monitoring and global evolution of electrical network towards the smart grid. In case that all measurements from the meters are properly synchronised and centralised, new possibilities of control or evaluation of the network are enabled. This contribution proposes the possibility for an earth fault localisation with the aid of synchronised data recorded on the low-voltage side of the medium voltage/low voltage transformers in compensated neutral distribution networks which are equipped with auxiliary resistor for short-time increasing of the active part of the fault current. The described method uses voltage sags evoked by connecting of the auxiliary resistor for locating the faulty section. The proposed method is tested with the help of numerical model which presents a part of the distribution network.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

IET GENER TRANSM DIS

ISSN

1751-8687

e-ISSN

1751-8695

Volume of the periodical

9

Issue of the periodical within the volume

14

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

2069-2077

UT code for WoS article

000364203200028

EID of the result in the Scopus database

2-s2.0-84945316089