Title :
Breakdown characteristics of N2 containing 0.125% of SF 6
Author :
Önal, Emel ; Kalenderli, Ozcan ; Mardikyan, Kevork
Author_Institution :
Fac. Electr. Eng., Istanbul Tech. Univ., Turkey
Abstract :
AC breakdown strengths of N2, SF6 and a mixture of N2+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 N2 causes a significant increase the AC breakdown voltage with respect to N2 . Even at about pressures of 250 kPa and 25 mm gap spacing breakdown voltages of the mixture were obtained 74% higher than that of pure N2. But above 400 kPa and 25 mm gap spacing the breakdown voltage is 10% lower than that of pure N2
Keywords :
nitrogen; 100 to 500 kPa; 5 to 25 mm; N2; N2-SF6; SF6; breakdown voltage measurement;
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:19990760
