Title :
Particle-initiated corona and breakdown under DC/AC mixed voltages
Author :
Abd-Allah, M.A. ; Ward, Sayed A. ; El-Bahy, M.M.
Author_Institution :
Fac. of Eng., Zagazig Univ., Egypt
Abstract :
The influence of conducting particles on the corona onset voltage and the breakdown voltage in a uniform field gap under AC voltage superimposed with negative DC biasing voltage is investigated. The effect of particle length, gap spacing and the DC biasing voltage on the corona onset and the breakdown voltages is also presented and discussed. The breakdown voltage of different gap spacing and DC biasing voltage is compared with calculated values. The comparison shows good agreement between experimental and calculated values
Keywords :
corona; electric breakdown; gas insulated substations; DC biasing voltage; DC/AC mixed voltages; breakdown voltage; conducting particles; corona onset voltage; gap spacing; negative DC biasing voltage; particle length; particle-initiated breakdown; particle-initiated corona; uniform field gap; Breakdown voltage; Corona; Dielectrics and electrical insulation; Electrons; Gas insulation; Geographic Information Systems; Ionization; Stress; Substations; Switching circuits;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1999 Annual Report Conference on
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-5414-1
DOI :
10.1109/CEIDP.1999.804665
