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AssigneeThe United States of America as represented by the United States Department of Energy
InventorsLoucas G. Christophorou, David R. James, Marshall O. Pace, Robert Y. Pai
Estimating the term…
Gaseous insulators comprise compounds having high attachment cross sections for electrons having energies in the 0-1.3 electron volt range. Multi-component gaseous insulators comprise compounds and mixtures having overall high electron attachment cross sections in the 0-1.3 electron volt range and moderating gases having high cross sections for inelastic interactions with electrons of energies 1-4 electron volts. Suitable electron attachment components include hexafluorobutyne, perfluorobutene-2, perfluorocyclobutane, perfluorodimethylcyclobutane, perfluorocyclohexene, perfluoromethylcyclohexane, hexafluorobutadiene, perfluoroheptene-1 and hexafluoroazomethane. Suitable moderating gases include N.sub.2, CO, CO.sub.2 and H.sub.2. The gaseous insulating mixture can also contain SF.sub.6, perfluoropropane and perfluorobenzene.
Apparatus comprising a gas-tight casing, spaced electrical elements therein adapted to be subjected to differences of electrical potential, and a gaseous insulator between said elements, said gaseous insulator comprising a compound selected from the group of perfluorocyclohexene and hexafluoroazomethane.
Apparatus comprising a gas-tight casing, spaced electrical elements therein adapted to be subjected to differences of electrical potential and a gaseous insulator between said elements, said gaseous insulator comprising a synergistic mixture comprising by volume at least 50% N.sub.2, 10-30% hexafluoro-2-butyne, and 10-20% SF.sub.6.
An apparatus comprising a gas-tight casing, spaced electrical elements therein adapted to be subjected to differences of electrical potential, and a gaseous insulator between said elements, said gaseous insulator comprising a synergistic mixture comprising a first component selected from the group of perfluorodimethylcyclobutane, perfluorocyclohexene, hexafluoroazomethane, perfluoromethylcyclohexane, hexafluorobutadiene, perfluoroheptene-1, perfluorocyclobutane, perfluorobutene-2 and mixtures thereof and a second component selected from the group of N.sub.2, CO, H.sub.2, C.sub.3 F.sub.8, C.sub.6 F.sub.6 and mixtures thereof.
An apparatus comprising a gas-tight casing, spaced electrical elements therein adapted to be subjected to differences of electrical potential, and a gaseous insulator between said elements, said gaseous insulator comprising a synergistic mixture comprising a first component selected from the group of perfluorodimethylcyclobutane, perfluorocyclohexene, hexafluoroazomethane, perfluoromethylcyclohexane, hexafluorobutadiene, perfluoroheptene-1, perfluorobutene-2 and mixtures thereof and a second component selected from the group of SF.sub.6, N.sub.2, CO, CO.sub.2, H.sub.2, C.sub.3 F.sub.8, C.sub.6 F.sub.6 and mixtures thereof.
Dependencies are inferred from the claim text.