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U.S. Department of Energy
Office of Scientific and Technical Information

Gaseous insulators for high voltage electrical equipment

Patent ·
OSTI ID:5378111
Gaseous insulators comprise compounds having high attachment cross sections for electrons having energies in the 0 to 1.3 electron volt range. Multi-component gaseous insulators comprise compounds and mixtures having overall high electron attachment cross sections in the 0 to 1.3 electron volt range and moderating gases having high cross sections for inelastic interactions with electrons of energies 1 to 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. 11 claims.
Assignee:
Dept. of Energy
Patent Number(s):
US 4175048
OSTI ID:
5378111
Country of Publication:
United States
Language:
English