Title :
Corona characteristics for free conducting particles in various SF 6-gas mixtures
Author :
Mufti, A.H. ; Arafa, A.A. ; Malik, N.H.
Author_Institution :
Dept. of Electr. & Comput. Eng., King Abdulaziz Univ., Jeddah, Saudi Arabia
fDate :
6/1/1994 12:00:00 AM
Abstract :
This paper reports on experimental investigations concerning the behavior of pulsative corona discharges from free conducting wire particles of different sizes in parallel plane and concave electrode systems, insulated with SF6 and its mixtures with nitrogen N 2, triethylamine (C2H5)3N and perfluorocarbon C8F16O gases. Corona inception and particle lift-off voltages as well as corona charge levels are measured for different experimental conditions. The results show that corona and particle lift-off characteristics are affected by particle parameters, electrode shape and gas composition. Generally, addition of triethylamine and perfluorocarbon to SF6 reduces the corona charge level
Keywords :
corona; gaseous insulation; particle size; sulphur compounds; (C2H5)3N; C8F16O; N2; SF6; SF6-N2; SF6-gas mixtures; concave electrode system; corona characteristics; corona charge levels; corona inception; electrode shape; free conducting wire particles; gas composition; parallel plane electrode system; particle liftoff voltages; particle parameters; perfluorocarbon; triethylamine; Cable insulation; Charge measurement; Corona; Current measurement; Electrodes; Gas insulation; Gases; Nitrogen; Voltage; Wire;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
