TY - GEN
T1 - Dc electrical breakdown between a metal electrode and a water surface
AU - Bruggeman, P.
AU - Degroote, J.
AU - Vierendeels, J.
AU - Leys, C.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Dc electrical breakdown between a metal pin and a water surface in atmospheric pressure air is investigated by fast framing and high frequency current and voltage measurements. To investigate the influence of the water surface on spark formation, the measurements are compared with the breakdown characteristics between a metal pin and a metal plate electrode. In the case of negative polarity of the pin a glow-to-spark transition occurs. The spark is broadened near the water surface due to an incomplete constriction of the glow phase. When the anode is a metal plate the spark is a narrow filament. In the case of positive polarity of the pin and a water cathode a streamer-to-spark transition occurs. The streamers are clearly branched. When the cathode is a metal plate, mostly one thick streamer is observed with constricted cathode spot which develops into a spark.
AB - Dc electrical breakdown between a metal pin and a water surface in atmospheric pressure air is investigated by fast framing and high frequency current and voltage measurements. To investigate the influence of the water surface on spark formation, the measurements are compared with the breakdown characteristics between a metal pin and a metal plate electrode. In the case of negative polarity of the pin a glow-to-spark transition occurs. The spark is broadened near the water surface due to an incomplete constriction of the glow phase. When the anode is a metal plate the spark is a narrow filament. In the case of positive polarity of the pin and a water cathode a streamer-to-spark transition occurs. The streamers are clearly branched. When the cathode is a metal plate, mostly one thick streamer is observed with constricted cathode spot which develops into a spark.
UR - https://www.scopus.com/pages/publications/77949375529
UR - https://www.scopus.com/pages/publications/77949375529#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:77949375529
SN - 9780955805202
T3 - GD 2008 - 17th International Conference on Gas Discharges and Their Applications
SP - 321
EP - 324
BT - GD 2008 - 17th International Conference on Gas Discharges and Their Applications
T2 - 17th International Conference on Gas Discharges and Their Applications, GD 2008
Y2 - 7 September 2008 through 12 September 2008
ER -