A model for determining the unipolar ionic saturation current in parallel wire-cylinder electrodes during corona discharge

Antonios X. Moronis, Nikolaos Simou, Konstantinos N. Kiousis, Emmanouil Fylladitakis

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper presents a model for the determination of the ionic unipolar corona saturation current in parallel wire-cylinder electrodes in the air, based on the geometrical characteristics of the electric field lines distributing in the space surrounding the electrodes, under high voltage dc application. The distribution of the lengths of the electric field lines connecting the electrodes is determined by finite element analysis. Then the acquired data are treated theoretically in order to calculate the total saturation unipolar corona current limit for the aforementioned electrode arrangement. Experimental investigation has shown that corona current is closely related to the unipolar saturation current limits derived from the proposed model.

Original languageEnglish
Article number6832246
Pages (from-to)1035-1043
Number of pages9
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume21
Issue number3
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • air gaps
  • Corona
  • discharges
  • electrodes
  • finite element methods

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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