Article,
Discharge occurring at a grounded electrode located in a charged particle cloud
Electrical Engineering in Japan, 136 (4): 7--14 (2001)
DOI: http://dx.doi.org/10.1002/eej.1068
Abstract
Electrical discharge phenomena from a grounded electrode located in
a charged particle cloud have been investigated. Soil conditioning
particles charged by corona charging were blown to form a space charge
cloud. A grounded sphere electrode was placed at the center of the
charged cloud to produce an electrical discharge. A positive pulse
discharge extended from the sphere electrode toward the charged cloud
with a strong luminescence. A brushlike streamer with a maximum length
of 170 mm appeared at an interval of 30 ms. The maximum pulse height
of the discharge was 2.4 A. The distribution of the electric field
around the sphere electrode was obtained from field analysis using
a concentric spherical model. It was found that the magnitude of
the discharge depends on the radius of the grounded electrode and
the size and charge density of the clouds.
