Title :
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
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;
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
DOI :
10.1109/IFOST.2007.4798602
