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US 12,456,851 B2Granted
Gas-insulated switching device using C3HCIF4 or C4H2F6
AssigneeAGC Inc.
InventorsTamaki Chinsoga, Masato Fukushima, Hiroki Hayamizu
Life of this patent
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Abstract
An electric facility includes: a metal tank in which a conductor member is disposed, the metal tank being filled with a dielectric, in which the dielectric contains at least one selected from the group consisting of 1-chloro-2,3,3,3-tetrafluoropropene and 1,1,1,4,4,4-hexafluoro-2-butene; and a surface of the conductor member includes one or more selected from the group consisting of a metal and a metal oxide.
Claims17
An electric facility, comprising:
- a metal tank;
- a conductor member positioned in the metal tank;
- and
- a dielectric filling the metal tank and comprising at least one selected from a group consisting of 1-chloro-2,3,3,3-tetrafluoropropene and 1,1,1,4,4,4-hexafluoro-2-butene,
- wherein the conductor member has a surface comprising a metal selected from a group consisting of aluminum, copper, silver, tin, zinc iron and chromium or an alloy comprising at least one selected from the group consisting of aluminum, copper silver tin zinc iron and chromium.
2 more elements
An electric facility, comprising:
- a metal tank;
- a conductor member positioned in the metal tank;
- and
- a dielectric filling the metal tank and comprising at least one selected from a group consisting of 1-chloro-2, 3, 3, 3-tetrafluoropropene and 1,1, 1,4,4,4-hexafluoro-2-butene,
- wherein the dielectric satisfies −1.0 area %≤ΔZ≤1.0 area % and −1.0 area %≤ΔE≤1.0 area %, where ΔZ is a change amount of a peak area of a Z-isomer in the dielectric from an initial value measured by a gas chromatograph after a lapse of 1008 hours under a temperature condition of 160° C., and ΔE is a change amount of a peak area of an E-isomer in the dielectric from an initial value measured by a gas chromatograph after a lapse of 1008 hours under a temperature condition of 160° C.
2 more elements
Dependencies are inferred from the claim text.