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AssigneesGuangdong Power Grid Co., Ltd., Electric Power Research Institute of Guangdong Power Grid Co., Ltd.
InventorsDongwei Sun, Nian Tang, Jinpan Chen, Li Li, Junzhen Pan, Xiaoqing Xiao
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The present invention discloses a gas-insulating medium and its application. The gas-insulating medium includes the following components by mass: 8.4-76.7 parts of trans-1,1,1,4,4,4-hexafluoro-2-butene, and 23.3-91.6 parts of octafluorocyclobutane. The gas-insulating medium of the present invention has a dielectric strength better sulfur hexafluoride, and a low liquefaction temperature, and can be applied in a wider temperature range. In addition, the gas-insulating medium in certain compositions has similar properties with a single component insulating gas. when the gas leaks, the ratio of trans-1,1,1,4,4,4-hexafluoro-2-butene and octafluorocyclobutane remains unchanged, and during the maintenance of electrical equipment, trans-1,1,1,4,4,4-hexafluoro-2-butene and octafluorocyclobutane can be directly supplemented according to a certain ratio, without other operations such as analysis and detection. In addition, the gas-insulating medium of the present invention has good environmental protection performance, the GWP value is low, and the ODP value is 0.
A gas-insulating medium, consisting of component 1 and component 2, wherein the component 1 is trans-1,1,1,4,4,4-hexafluoro-2-butene, and the component 2 is octafluorocyclobutane;
A gas-insulating medium, consisting of component 1, component 2, and component 3, wherein the component 1 is trans-1,1,1,4,4,4-hexafluoro-2-butene, the component 2 is octafluorocyclobutane, and the component 3 is at least one selected from the group consisting of nitrogen, oxygen, air and carbon dioxide;
Dependencies are inferred from the claim text.