Invention Grant
- Patent Title: Method and facility for filling a gas-insulated electrical apparatus comprising a mixture of (CF3)2CFCN and CO2
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Application No.: US15778538Application Date: 2016-11-29
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Publication No.: US10770198B2Publication Date: 2020-09-08
- Inventor: Yannick Kieffel , François Biquez , Jacques Porte
- Applicant: General Electric Technology GmbH
- Applicant Address: CH Baden
- Assignee: General Electric Technology GmbH
- Current Assignee: General Electric Technology GmbH
- Current Assignee Address: CH Baden
- Agency: Eversheds Sutherland (US) LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6f52ad8a
- International Application: PCT/EP2016/079148 WO 20161129
- International Announcement: WO2017/093259 WO 20170608
- Main IPC: H01B3/56
- IPC: H01B3/56 ; F17C5/06 ; H01H33/56 ; G05D16/20 ; G05D16/02 ; F17C13/02 ; H02B13/055
Abstract:
A method and a facility for filling a high- or medium-voltage gas-insulated electrical apparatus in which the insulating gas comprises a mixture of heptafluoroisobutyronitrile ((CF3)2CFCN) and carbon dioxide. The method and the facility using a mixture of (CF3)2CFCN and CO2 in pressurised liquid form which is heated to a temperature no lower than the critical temperature of the mixture.
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