Title :
Physical Science, Measurement and Instrumentation, Management and Education, IEE Proceedings A
Author_Institution :
Dept. of Electr. & Electron. Eng., Nairobi Univ., Kenya
fDate :
3/1/1990 12:00:00 AM
Abstract :
The effect of Freon 113 additive ( approximately 1%) on DC and impulse corona discharges of SF6 is investigated in a point-plane gap arrangement, in the pressure range 0.1-0.2 MPa. Freon is found to inhibit corona activity and delay leader inception, and the results obtained are discussed in terms of existing models on streamer and leader mechanisms of SF6, as well as known chemical and physical properties of Freon 113. It is suggested that the observed effect of Freon 113 is probably related to its high attachment cross-section and its ability to form stabler negative ions.
Keywords :
corona; electric breakdown of gases; gaseous insulation; organic compounds; spark gaps; sulphur compounds; DC; Freon 113; SF6; attachment cross-section; corona; gaseous insulation; impulse discharge characteristics; leader inception; negative ions; organic compounds; point-plane gap; streamer;
Journal_Title :
Physical Science, Measurement and Instrumentation, Management and Education, IEE Proceedings A
