Detail publikace

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

TOPOLÁNEK, D. TOMAN, P. ORSÁGOVÁ, J. KOPIČKA, M.

Originální název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

earth fault; fault location; overvoltage; earthing; healthy phase

Autoři

TOPOLÁNEK, D.; TOMAN, P.; ORSÁGOVÁ, J.; KOPIČKA, M.

Rok RIV

2014

Vydáno

31. 3. 2014

Nakladatel

The Institution of Engineering and Technology IET

Místo

Six Hills Way Stevenage Hertfordshire SG1 2AY UK

ISBN

978-1-84919-834-9

Kniha

The 12th International Conference on Developments in Power System Protection DPSP2014

Strany od

1

Strany do

6

Strany počet

6

BibTex

@inproceedings{BUT107279,
  author="David {Topolánek} and Petr {Toman} and Jaroslava {Orságová} and Marek {Kopička}",
  title="The Evaluation of Overvoltage During Short-Time Additional Earthing of Healthy Phase for Fault Location in MV Networks",
  booktitle="The 12th International Conference on Developments in Power System Protection DPSP2014",
  year="2014",
  pages="1--6",
  publisher="The Institution of Engineering and Technology IET",
  address="Six Hills Way
Stevenage
Hertfordshire
SG1 2AY
UK",
  doi="10.1049/cp.2014.0160",
  isbn="978-1-84919-834-9"
}