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TOMAN, P. TOPOLÁNEK, D. ORSÁGOVÁ, J. DVOŘÁK, J.
Originální název
The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Safety of Compensated Networks
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
A connection between a phase conductor and the ground in a compensated MV networks is called an earth fault. Since the fault current in this case does not depend on the point of the fault, but only on the total capacity (size) of a network, earth fault location remains a problem for MV network operators. The MV compensated Networks in Czech Republic are operated as nonsymmetrical, that means as networks with non-transposed lines. Some of them are operated with additional earthing of faulted phase for increasing the safety in the point of the fault. The equipment of additional earthing of faulted phase is also able to connect healthy phase for short time. There are fast circuit breakers for additional earthing in the substation and the cycle close-open is shorter than time for tripping of an overcurrent protection in the outgoing feeder-bay (100ms). The paper deals with analysis of the touch voltages in the point of the fault during fault location and describes the experiment in real distribution network.
Klíčová slova
earth fault, safety, compensated network, earthing, location
Autoři
TOMAN, P.; TOPOLÁNEK, D.; ORSÁGOVÁ, J.; DVOŘÁK, J.
Rok RIV
2013
Vydáno
10. 6. 2013
Nakladatel
CIRED
Místo
Stockholm (Sweden)
ISBN
978-1-84919-732-8
Kniha
CIRED 2013 22nd International Conference on Electricity Distribution
Strany od
1
Strany do
4
Strany počet
BibTex
@inproceedings{BUT102760, author="Petr {Toman} and David {Topolánek} and Jaroslava {Orságová} and Jaromír {Dvořák}", title="The Influence of Additional Earthing of Healthy Phase for Earth Fault Location on Safety of Compensated Networks", booktitle="CIRED 2013 22nd International Conference on Electricity Distribution", year="2013", pages="1--4", publisher="CIRED", address="Stockholm (Sweden)", doi="10.1049/cp.2013.1173", isbn="978-1-84919-732-8" }