Corona discharge to water surface and its transition to a spark
Artikel i vetenskaplig tidskrift, 2011

Impulse corona discharge in atmospheric air to the surface of a water layer with different electric conductivities is studied. The discharge was initiated from a corona electrode consisting of a metallic disk with evenly distributed corona needles.The dependences of the magnitudes of the measured impulse currents on the polarity of the corona electrode as well as the parameters of the gas gap and liquid layer were obtained. An equivalent electric circuit of the discharge system was proposed, allowing for explanations of the regularities in the measured currents and also the role of the water layer as a factor affecting the transition of the corona discharge to a spark.

impulse corona discharge

water layer

Corona-spark transition

impulse current


Igor Bozhko

Igor Kondratenko

Yuriy Serdyuk

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

IEEE Transactions on Plasma Science

0093-3813 (ISSN)

Vol. 36 1228-1233




Annan elektroteknik och elektronik