Charging Insulating Barrier by Corona in Air in Large Coaxial System
Paper in proceedings, 2015

Results of the experimental study and computer simulations of corona charging of an insulating barrier in a large scale coaxial arrangement are reported. A computational model describing transport of charged species generated by corona and their dynamics on dielectric surfaces is presented. The measured and computed voltage-current characteristics of corona discharge are compared and discussed. It is shown that charges deposited on gas-solid dielectric interfaces reach a steady state after few cycles of the applied triangular ac voltage. The electric field induced by the surface charges modifies the field in the entire system and alter corona characteristics.

charge deposition

ionic drift

space charge

gas-solid interface

corona discharge

electric field


Yuriy Serdyuk

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Martin Macken

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Olof Hjortstam

ABB Corporate Research Center

Birgitta Källstrand

ABB Corporate Research Center

Uno Gäfvert

ABB Corporate Research Center

Markus Saltzer

ABB Group

IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2015, Ann Arbor, United States, 18-21 October 2015

0084-9162 (ISSN)


Areas of Advance


Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering





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