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Prof. mahmoud mohamed ahmed elbahy :: Publications:

Title:
Onset voltage of a particle-initiated negative corona in a co-axial cylindrical configuration
Authors: M Abouelsaad, N Abdel-Gawad and M Badawi
Year: 2007
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: International
Paper Link: Not Available
Full paper mahmoud mohamed ahmed elbahy_Onset voltage of negative corona on (1).pdf
Supplementary materials Not Available
Abstract:

Theoretical investigation of the onset voltage of negative corona on stranded conductors is described in this paper. The method of calculation is based on the criterion developed for the formation of repetitive negative corona Trichel pulses. This calls first for an accurate calculation of the electric field in the vicinity of stranded conductors. The investigated gap is a three-dimensional field problem. To solve this problem, a new modification of the charge simulation technique is presented, where the simulation charges are helical of infinite length. Laboratory measurements of the onset voltage on stranded conductors are carried out to check the accuracy of the present calculations. The effects of varying the field nonuniformity on the onset voltage values are investigated. The calculated onset voltage values for stranded conductors agree satisfactorily with those measured experimentally

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