Title :
Breakdown characteristics of CO2 containing 0.125% of SF 6
Author :
Önal, Emel ; Kalenderli, Özean ; Mardikyan, Kevork
Author_Institution :
Fac. Electr. Eng., Istanbul Tech. Univ., Turkey
Abstract :
AC breakdown strengths of CO2, SF6 and a mixture of CO2+SF6 containing 0.125% of SF6 in nonuniform field were experimentally studied. The electrode gap spacing and the relative gas pressure were varied within the range of 5-25 mm and of 100-500 kPa respectively. The experimental results have shown that the addition of SF6 to CO2 causes a significant increase of the AC breakdown voltage with respect to CO 2. Even at about pressures of 300 kPa and 25 mm gap spacing breakdown voltage of mixture were obtained 15% higher than that of pure SF6 and 54% higher than that of pure CO2
Keywords :
carbon compounds; 100 to 500 kPa; 5 to 25 mm; AC breakdown strength; CO2; CO2-SF6; HV equipment; SF6; breakdown characteristics; breakdown voltage measurement; electrode gap spacing; nonuniform field; relative gas pressure;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990759
