Invention Grant
- Patent Title: Electrical switching device
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Application No.: US15191287Application Date: 2016-06-23
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Publication No.: US09899167B2Publication Date: 2018-02-20
- Inventor: Javier Mantilla Florez , Xiangyang Ye , Mahesh Dhotre , Oliver Cossalter , Stephan Grob
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Taft Stettinius & Hollister LLP
- Priority: WOPCT/EP2013/077960 20131223
- Main IPC: H01H33/02
- IPC: H01H33/02 ; H01H33/22 ; H01H33/70 ; H01H33/74 ; H01H33/88 ; H01B3/56

Abstract:
An electrical switching device is filled with a dielectric insulating medium comprising an organofluorine compound, in particular a fluoroether, a fluoroarnine, a fluoroketone or a fluoroolefin, and comprises at least an arcing contact arrangement with a first arcing contact and a mating second arcing contact. At least a first intermediate volume is provided downstream from the first arcing contact, and/or at least a second intermediate volume is provided downstream from the second arcing contact. The intermediate volumes are for intermediate pressure enhancement and exhaust gas jet formation for turbulent convective heat transfer to metal walls of the exhaust system. In embodiments, the first and/or second intermediate volume is delimited by at least one moveable wall arranged transversally to the longitudinal axis and shiftable parallel to it by an actuation device.
Public/Granted literature
- US20160307716A1 ELECTRICAL SWITCHING DEVICE Public/Granted day:2016-10-20
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