Current Distributions for Barbed Plate-to-Plane Coronas

Peter J. McKinney, Jane H. Davidson, Douglas M. Leone

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Corona current distributions at the ground plane of barbed plate-to-plane negative discharge configurations are measured using an X-Y traversing ground plane containing an electrically isolated probe area. The effects of barb length, barb point radius of curvature, barb pattern, applied voltage, and plate-to-plane spacing on the current distribution are examined. The current distributions are visualized with oxidation patterns on a copper ground plane. Barb tip-to-plane spacing and applied voltage control maximum current density, whereas barb length, barb spacing, and pattern govern current density uniformity. A hexagonal barb pattern is suggested for use in electrostatic precipitators.

Original languageEnglish (US)
Pages (from-to)1424-1431
Number of pages8
JournalIEEE Transactions on Industry Applications
Issue number6
StatePublished - Jan 1 1992


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