The Evaluation of Overvoltage During Short-Time Additional Earthing of Healthy Phase for Fault Location in MV Networks

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F14%3APU108900" target="_blank" >RIV/00216305:26220/14:PU108900 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1049/cp.2014.0160" target="_blank" >http://dx.doi.org/10.1049/cp.2014.0160</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1049/cp.2014.0160" target="_blank" >10.1049/cp.2014.0160</a>

Result language
angličtina
Original language name
The Evaluation of Overvoltage During Short-Time Additional Earthing of Healthy Phase for Fault Location in MV Networks
Original language description
The paper is focused on the operational experience with an automatic system for additional earthing of the faulty or healthy phase during an earth fault. The system is primarily used for limiting of a fault current in the point of the fault by earthing of the faulty phase during an earth fault. The equipment for additional earthing of faulty phase can also be used for short-time connection of healthy phase to earth fault location. There are fast circuit breakers for additional earthing in the substation and the cycle close-open is shorter then time for tripping of overcurrent protection in the outgoing feeder-bay (100 ms). This method of fault location in MV network could bring additional overvoltage which stresses the insulation of MV networks elements. This paper presents the simulation and experimental verification of this phenomenon and gives the recommendation for choosing the healthy phase for minimizing the negative influence of this location technique.
Czech name
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Czech description
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Project
<a href="/en/project/EE2.3.30.0005" target="_blank" >EE2.3.30.0005: Support of Interdisciplinary Excellence Research Teams Establishment at BUT</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
The 12th International Conference on Developments in Power System Protection DPSP2014
ISBN
978-1-84919-834-9
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
1-6
Publisher name
The Institution of Engineering and Technology IET
Place of publication
Six Hills Way Stevenage Hertfordshire SG1 2AY UK
Event location
Copenhagen
Event date
Mar 31, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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