LOW FREQUENCY BREAKDOWN IN DIELECTRIC GASES
Abstract
Experiments were conducted on the breakdown strength of several dielectric gases at 60 cps in the region of a spark plug gap. Breakdown power of sulfur-hexafluoride (SF6) was 20% greater when the electrodes were degassed at 50 microns compared to 1000 microns. As the concentration of SF6 was decreased from 98% to 50%, only a small decrease in breakdown strength was noted. It is estimated that this factor can be used to reduce leakage of SF6 by approximately 50%. The degradation effects of prolonged arcing were measured on breakdown onset voltage, extinguish voltage, and chemical decomposition. Gases analyzed, listed in their order of decreasing dielectric strength, include C4F8, Freon 115, SF6, C3F8, Freon 116, and air.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1962
- Accession Number
- AD0296319
Entities
People
- Vincent C. Vannicola
Organizations
- Rome Laboratory