An earth fault location method based on negative sequence voltage changes at low voltage side of distribution transformers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F20%3APU134651" target="_blank" >RIV/00216305:26220/20:PU134651 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S014206151932068X?dgcid=author" target="_blank" >https://www.sciencedirect.com/science/article/pii/S014206151932068X?dgcid=author</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijepes.2019.105768" target="_blank" >10.1016/j.ijepes.2019.105768</a>
Alternative languages
Result language
angličtina
Original language name
An earth fault location method based on negative sequence voltage changes at low voltage side of distribution transformers
Original language description
The paper presents a new approach for earth fault localization which is based on evaluation of phase to ground voltages recorded by voltage monitors installed at low-voltage side of distribution transformer station deployed under smart metering projects. The introduced method "Vdip" determines the probability of asymmetrical fault location based on comparison of the changes in negative sequence current recorded at the feeding medium voltage substation and changes in negative sequence voltages recorded at the LV sides of distribution transformers. The paper describes the nature of the method and presents its principle using simulation of a MV resonant earthed distribution network where short-term connection of an auxiliary resistor is used. The method was also evaluated in real resonant earthed 22 kV network, where totally 15 earth faults with fault resistance up to 1.2 k Omega were carried out. As the result of this field test, the location error of the Vdip method is presented.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
ISSN
0142-0615
e-ISSN
1879-3517
Volume of the periodical
118
Issue of the periodical within the volume
118
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
1-8
UT code for WoS article
000518691600020
EID of the result in the Scopus database
2-s2.0-85076829505