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公开(公告)号：US11996251B2
公开(公告)日：2024-05-28
申请号：US17764944
申请日：2020-09-22
IPC分类号： H01H33/56 , H02B13/045 , H02B13/055
CPC分类号： H01H33/562 , H01H33/565 , H02B13/045 , H02B13/055
摘要： A medium or high voltage electrical device and method of maintaining the composition of an insulating gas mixture in a medium or high voltage electrical device, where the device comprises a sealed chamber, said sealed chamber comprising electrical components; a gas mixture ensuring electrical insulation and/or extinguishing of electrical arcs produced in this chamber, wherein the gas mixture comprises at least one insulating gas and at least one dilution gas; and a receptacle, said receptacle comprising an opening, at least one wall, wherein at least one wall is a heatable wall, and wherein said receptacle is positioned to receive liquefied gas; the device further comprising a heating element for heating the heatable receptacle wall; and a dielectrically and thermally insulating layer located between the heatable receptacle wall and the chamber.
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公开(公告)号：US20240072522A1
公开(公告)日：2024-02-29
申请号：US17893293
申请日：2022-08-23
IPC分类号： H02B13/055 , H02B13/045
CPC分类号： H02B13/055 , H02B13/045
摘要： A switch, includes electrical contacts separated by a contact gap, a tubular guide disposed around at least one of the electrical contacts axially movable between an open position retracted from the contact gap and a closed position bridging the contact gap, a blast cylinder disposed radially outward of the tubular guide and defining a compression volume therebetween, the blast cylinder axially movable in coordination with the tubular guide between the open position and the closed position, an isolating ring coupled to a tubular guide end, and a blast cylinder bottom ring coupled to a blast cylinder end, the blast cylinder bottom ring and the isolating ring configured to engage each other to form a gas seal to prevent a gas from exiting the contact gap into the compression volume when the blast cylinder and the tubular guide are moved to the closed position.
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公开(公告)号：US20230327411A1
公开(公告)日：2023-10-12
申请号：US18042348
申请日：2020-10-22
发明人： Kazuya KATAYAMA
IPC分类号： H02B13/055 , H02B13/045
CPC分类号： H02B13/055 , H02B13/045 , H02B13/065
摘要： A valve gas filter includes: a valve box attached to a gas enclosing port connected to a gas-insulated device to be filled with an insulating gas and hermetically sealed; and a valve body that opens and closes a gas passage by moving in the valve box, in which the valve body includes a gas filter, which is formed by a porous insulating material and allows passage of an insulating gas but does not allow passage of foreign matter contained in the insulating gas.
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4.发明公开公开(公告)号：US20230223224A1
公开(公告)日：2023-07-13
申请号：US18001445
申请日：2021-06-10
IPC分类号： H01H33/22 , H01B3/56 , H02B13/055
CPC分类号： H01H33/22 , H01B3/56 , H02B13/055 , H01H2033/566
摘要： The present application concerns a medium- or high-voltage equipment including a leaktight enclosure in which there are located electrical components and a gas mixture for providing electrical insulation and/or for extinguishing electric arcs that are likely to occur in the enclosure, the gas mixture including heptafluoroisobutyronitrile, carbon dioxide, and a high content of oxygen
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公开(公告)号：US11456132B2
公开(公告)日：2022-09-27
申请号：US17263632
申请日：2019-06-27
发明人： Andreas Glaue , Karsten Juhre , Andreas Kleinschmidt , Mark Kuschel , Bernhard Lutz , Ingo Seubert
IPC分类号： H01H33/56 , H02B13/055 , B01D53/00 , B01D53/70
摘要： An electrical switching device is provided for interrupting an electrical connection. The device has a switching chamber and two contact pieces being arranged directly in the switching chamber or in an encapsulated housing arranged in the switching chamber and configured to be gas-tight in relation to the switching chamber. The contact pieces are movable relative to each other to bring about a switching action. A fluid insulation medium is also provided, which is arranged in the switching chamber or in a storage volume which can be connected to the switching chamber. The switching chamber or the storage volume has an outlet for letting out the fluid insulation medium. A filter is provided at or adjacent to the outlet, the filter configured to filter gaseous components of the insulation medium, or the reaction products thereof, conducted through the outlet.
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公开(公告)号：US11005241B2
公开(公告)日：2021-05-11
申请号：US16317061
申请日：2017-07-07
发明人： Frédéric Loray , Hervé Dulphy , Ariel Satin
IPC分类号： H02B13/055 , H01H33/56 , F17C5/06 , F17C7/02 , H01H33/22
摘要： A method of distributing an electrically insulating liquefied gas mixture to high-voltage electrical equipment from a storage means containing an insulating gas mixture, including: heating the insulating gas mixture to a temperature such that the contents of the storage means are a homogeneous fluid; and withdrawing the insulating mixture resulting from step a) to fill high-voltage electrical equipment by raising the temperature of the mixture resulting from step a), wherein, during step b), a set value for regulation is applied at variable pressure, calculated in real time based on weighing the storage means, when the change in the set value of pressure is less than 0.2 bar per 1 kg/m3 of change in density, and then a set value for regulation is applied at constant temperature until the storage means is emptied of its content.
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公开(公告)号：US20190245330A1
公开(公告)日：2019-08-08
申请号：US16317061
申请日：2017-07-07
发明人： Frédéric LORAY , Hervé DULPHY , Ariel SATIN
IPC分类号： H02B13/055 , F17C7/02
CPC分类号： H02B13/055 , F17C5/06 , F17C7/02 , F17C2221/03 , F17C2223/0115 , F17C2260/04 , H01H33/22 , H01H33/562 , H01H2033/566
摘要： A method of distributing an electrically insulating liquefied gas mixture to high-voltage electrical equipment from a storage means containing an insulating gas mixture, including: heating the insulating gas mixture to a temperature such that the contents of the storage means are a homogeneous fluid; and withdrawing the insulating mixture resulting from step a) to fill high-voltage electrical equipment by raising the temperature of the mixture resulting from step a), wherein, during step b), a set value for regulation is applied at variable pressure, calculated in real time based on weighing the storage means, when the change in the set value of pressure is less than 0.2 bar per 1 kg/m3 of change in density, and then a set value for regulation is applied at constant temperature until the storage means is emptied of its content.
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公开(公告)号：US10157719B2
公开(公告)日：2018-12-18
申请号：US15608041
申请日：2017-05-30
申请人： HITACHI, LTD.
发明人： Yuki Nakai , Masanao Terada , Hajime Urai , Takashi Iida , Noriyuki Yaginuma
IPC分类号： H01H33/91 , H01H33/08 , H01H33/42 , H01H33/74 , H01H33/78 , H01H71/02 , H01H71/10 , H01H71/32 , H01H73/18 , H02B13/025 , H02B13/045 , H02B13/055
摘要： A gas circuit breaker includes a sealed tank, a movable side main electrode and a fixed side main electrode in the sealed tank facing each other, a movable side arc electrode and a fixed side arc electrode in the sealed tank facing each other, a cylinder at a circumference of the movable side arc electrode, a piston in the cylinder in a slidable manner and forming a puffer chamber together with the cylinder, an insulation nozzle in the sealed tank, an exhaust pipe at a circumference of the fixed side arc electrode and exhausting heat gas, which is sprayed on an arc generated in the insulation nozzle in the opening electrode operation, to an outside, and a closing plate in the exhaust pipe. One or more vent holes leading the heat gas from an inside of the exhaust pipe to the outside is on a surface of the closing plate.
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公开(公告)号：US20180350485A1
公开(公告)日：2018-12-06
申请号：US15781293
申请日：2016-12-02
申请人： SOLVAY SA
IPC分类号： H01B3/56 , H02B13/055
CPC分类号： H01B3/56
摘要： The invention concerns methods for dielectrically insulating electrical active parts using certain sulphur fluorides, as well as compositions and apparatus comprising such compounds.
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公开(公告)号：US20180350484A1
公开(公告)日：2018-12-06
申请号：US15781284
申请日：2016-12-02
申请人： SOLVAY SA
IPC分类号： H01B3/56 , H02B13/055 , H01H33/64
CPC分类号： H01B3/56
摘要： Methods for dielectrically insulating electrical active parts The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated sulfone or sulfoxide derivatives, preferably fluorinated dialkyl sulfone derivatives as well as compositions and apparatus comprising such compounds.
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