Title :
Measurements of discharges and their branching behaviour in atmospheric air
Author :
Stangherlin, S. ; Salge, G. ; Koenig, F.
Author_Institution :
Dept. of Corporate Res., ABB Switzerland Ltd., Baden, Switzerland
Abstract :
The statistical behaviour of atmospheric air was investigated in a divergent electric field (rod-plane arrangement). The experimental campaign refers to both polarities as well as different gap distances (10, 30, 50 and 70 mm). The average breakdown voltage U50% as well as the standard deviation σ are reported and compared to predictions of the streamer inception voltage. Furthermore, investigations concerning streamer branching were performed. Within the investigated gap range, it seems that the polarity change plays the major role compared to a modification of the gap distance.
Keywords :
air; air gaps; discharges (electric); electric fields; statistical analysis; atmospheric air; average breakdown voltage; branching behaviour; discharge measurements; divergent electric field; gap distances; polarity change; rod-plane arrangement; standard deviation; statistical behaviour; streamer branching; streamer inception voltage; Aluminum; Atmospheric measurements; Atmospheric modeling; Breakdown voltage; Capacitors; Dielectrics; Electrodes; Humidity; Temperature distribution; Testing;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on
Print_ISBN :
0-7803-7502-5
DOI :
10.1109/CEIDP.2002.1048912
