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Current distributions for barbed plate-to-plane coronas

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3 Author(s)
McKinney, P.J. ; Dept. of Civil Eng., Colorado State Univ., Ft. Collins, CO, USA ; Davidson, J.H. ; Leone, D.M.

Corona current distributions at the ground plane of barbed plane-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 plane-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

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Industry Applications, IEEE Transactions on  (Volume:28 ,  Issue: 6 )