Detail publikačního výsledku

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

TOPOLÁNEK, D.; LEHTONEN, M.; ADZMAN, M.; TOMAN, P.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

earth fault, localization, compenzation, distribution network, voltage drop, distribution transformer

Klíčová slova v angličtině

earth fault, localization, compenzation, distribution network, voltage drop, distribution transformer

Autoři

TOPOLÁNEK, D.; LEHTONEN, M.; ADZMAN, M.; TOMAN, P.

Rok RIV

2016

Vydáno

07.08.2015

Nakladatel

IET

ISSN

1751-8687

Periodikum

IET Generation Transmission & Distribution

Svazek

9

Číslo

14

Stát

Spojené království Velké Británie a Severního Irska

Strany od

2069

Strany do

2077

Strany počet

9

URL

http://ietdl.org/t/CNR93

Plný text v Digitální knihovně

http://hdl.handle.net/11012/203248

BibTex

@article{BUT115451,
  author="David {Topolánek} and Matti {Lehtonen} and Mohd Rafi {Adzman} and Petr {Toman}",
  title="Earth fault location based on evaluation of voltage sag at secondary side of medium voltage/low voltage transformers",
  journal="IET Generation Transmission & Distribution",
  year="2015",
  volume="9",
  number="14",
  pages="2069--2077",
  doi="10.1049/iet-gtd.2014.0460",
  issn="1751-8687",
  url="http://ietdl.org/t/CNR93"
}

Dokumenty

Topolanek_2015