About: The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Overvoltage in Distribution Networks

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The Czech MV compensated networks operated by distribution system operator E.ON are not switched off immediately in the case of earth fault. In such cases, there is real risk of hazard voltages around faulty place. Therefore automatic for additional earthing of faulty phase is installed under pilot project in one supply substation 22kV. This automatic can be also used for short-time connection (100 ms) of healthy phase to earthing system of supply substation that leads to double line-to-earth short circuit which increase level of fault current to value which is sufficient for calculation of the fault distance by fault locator installed in outgoing feeder. As performed field tests showed, this operation can caused high overvoltage up to 200 % of operation voltage, therefore the paper gives the recommendation for choosing of the healthy phase for minimizing the overvoltage during this location technique. The Czech MV compensated networks operated by distribution system operator E.ON are not switched off immediately in the case of earth fault. In such cases, there is real risk of hazard voltages around faulty place. Therefore automatic for additional earthing of faulty phase is installed under pilot project in one supply substation 22kV. This automatic can be also used for short-time connection (100 ms) of healthy phase to earthing system of supply substation that leads to double line-to-earth short circuit which increase level of fault current to value which is sufficient for calculation of the fault distance by fault locator installed in outgoing feeder. As performed field tests showed, this operation can caused high overvoltage up to 200 % of operation voltage, therefore the paper gives the recommendation for choosing of the healthy phase for minimizing the overvoltage during this location technique. (en)
Title	The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Overvoltage in Distribution Networks The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Overvoltage in Distribution Networks (en)
skos:prefLabel	The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Overvoltage in Distribution Networks The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Overvoltage in Distribution Networks (en)
skos:notation	RIV/00216305:26220/14:PU112429!RIV15-MSM-26220___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(LO1210)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Toman, Petr Topolánek, David Orságová, Jaroslava
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	21301
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/14:PU112429
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	earth fault, compensated distribution network, line protection, earth fault location, overvoltage (en)
http://linked.open.../riv/klicoveSlovo	overvoltage compensated distribution network earth fault location line protection earth fault
http://linked.open...ontrolniKodProRIV	[072D8F0F811D]
http://linked.open...v/mistoKonaniAkce	Buenos Aires
http://linked.open...i/riv/mistoVydani	Buenos Aires, Argentina
http://linked.open...i/riv/nazevZdroje	CIDEL Argentina 2014, International Conference on Electricity Distribution
http://linked.open...in/vavai/riv/obor	JE
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Energy for Sustainable Development
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Dvořák, Jaromír Toman, Petr Orságová, Jaroslava Topolánek, David
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-09-22 (xsd:date)
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	CIDEL 2014
https://schema.org/isbn	978-987-97399-6-9
http://localhost/t...ganizacniJednotka	26220

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