Behavior of directional protection from fault to ground with interrupted arc

Author

Shalin, A.I. ; Kondranina, E.A.

Author_Institution

Novosibirsk State Tech. Univ., Novosibirsk

fYear

2007

fDate

3-6 Oct. 2007

Firstpage

348

Lastpage

352

Abstract

Directional current protection from grounding has been widespread in distribution networks and voltage equipment, 6-35 kV. One of the most complicated operational regimes of the protection is fault to ground (FG) accompanied by an interrupted arc. Due to the moments of the arc ignition and arc starvation are random values, not only oscillograms of zero frequency current and voltage get distorted to a great extent, but the angle between the components of industrial and voltage frequencies change randomly. All that has a great influence on the protection´s behavior.

Keywords

arcs (electric); earthing; power distribution protection; arc ignition; arc starvation; directional current protection; fault-to-ground protection; interrupted arc; oscillograms; power distribution networks; voltage 6 kV to 35 kV; voltage equipment; zero frequency current; zero frequency voltage; Circuit faults; Frequency; Grounding; Ignition; Protection; Protective relaying; Pulse measurements; Signal processing; Transformers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology, 2007. IFOST 2007. International Forum on

Conference_Location

Ulaanbaatar

Print_ISBN

978-1-4244-3589-0

Electronic_ISBN

978-1-4244-1831-2

Type

conf

DOI

10.1109/IFOST.2007.4798602

Filename

4798602