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公开(公告)号：US11978600B2
公开(公告)日：2024-05-07
申请号：US17621211
申请日：2020-03-30
申请人： HITACHI ENERGY LTD
发明人： Valeria Teppati , Saskia Scheel , Charles Doiron , Daniel Over , Philipp Simka , Branimir Radisavljevic
CPC分类号： H01H33/22 , H01B3/56 , H01H2033/566
摘要： The present invention relates to a dielectric-insulation or arc-extinction fluid for an apparatus for the generation, the transmission, the distribution and/or the usage of electrical energy, the fluid being a mixture comprising a fluoroolefin and oxygen. According the fluoroolefin is a monohydrofluoroolefin containing from 4 to 5 carbon atoms, the hydrogen atom being bound to a carbon atom of the double bond or directly adjacent to the double bond.
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2.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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3.发明公开公开(公告)号：US20230223168A1
公开(公告)日：2023-07-13
申请号：US17434330
申请日：2020-02-26
摘要： Electrical insulation system with low environmental impact for medium- and high-voltage electrical switchgear.
The invention relates to an electrical insulation system comprising two fundamental elements:
a) a gaseous medium formed by a mixture of i) one or more non-flammable hydrofluoroolefins with at least 4 carbon atoms and ii) one, two or three carrier gases selected from N2, O2, dry air, helium, CO2 or mixtures thereof; and
b) one or more drying agents.
Electrical insulation system with low environmental impact for medium- and high-voltage electrical switchgear.
The invention relates to an electrical insulation system comprising two fundamental elements:
a) a gaseous medium formed by a mixture of i) one or more non-flammable hydrofluoroolefins with at least 4 carbon atoms and ii) one, two or three carrier gases selected from N2, O2, dry air, helium, CO2 or mixtures thereof; and
b) one or more drying agents.-
公开(公告)号：US11699559B2
公开(公告)日：2023-07-11
申请号：US17365445
申请日：2021-07-01
发明人： Denis Tehlar , Martin Seeger , Nitesh Ranjan , Patrick Stoller , Raffael Buehler , Jan Carstensen
IPC分类号： H01R33/22 , H01H33/22 , H01H33/18 , H01H33/70 , H01H33/90 , H01H33/91 , H01H33/12 , C07C49/167 , H01H33/86
CPC分类号： H01H33/22 , C07C49/167 , H01H33/122 , H01H33/182 , H01H33/7084 , H01H33/86 , H01H33/90 , H01H33/91
摘要： The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. According to the application, a counter-arcing component is allocated to the arcing region, the counter-arcing component being designed for counteracting the generation of an arc and/or being designed for supporting the extinction of an arc.
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公开(公告)号：US11450448B2
公开(公告)日：2022-09-20
申请号：US16139904
申请日：2018-09-24
发明人： Charles Doiron , Thomas Alfred Paul , Branimir Radisavljevic , Nitesh Ranjan , Anna Di-Gianni , Saskia Scheel
摘要： The present invention relates to the use of a linear octafluorobutene as a dielectric compound in an environmentally safe dielectric-insulation or arc-extinction fluid for an apparatus for the generation, the transmission, the distribution and/or the usage of electrical energy.
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公开(公告)号：US20220181108A1
公开(公告)日：2022-06-09
申请号：US17440824
申请日：2020-03-12
摘要： A switching device for fast disconnection of short-circuit currents is provided. The switching device comprises a switching bridge with a movable contacting element and a fixed contacting element. The switching bridge being operable in a closed state, in which the movable contacting element is in contact with the fixed contacting element, and an open state, in which the movable contacting element is spaced apart from the fixed contacting element. The switching device further comprises an electromagnetic switching drive with a coil for generating a magnetic field and a magnet anchor, a guide sleeve to guide the movement of the magnet anchor in the magnetic field of the coil, a pyrotechnic propellant charge located in the cavity, and a supporting device for supporting the guide sleeve. The magnet anchor is arranged within the guide sleeve such that a cavity is formed below the magnet anchor.
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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：US20200273648A1
公开(公告)日：2020-08-27
申请号：US16794627
申请日：2020-02-19
申请人： Peter LELL
发明人： Peter LELL
摘要： An example electrical interruption switch includes a casing, surrounding a contact unit defining a current path therethrough. The contact unit has a first and second connection contact, a separation region and an upsetting region. A current supplied to the contact unit via the first connection contact can be discharged via the second connection contact, or vice versa. The contact unit includes, or is connected to, a sabot configured to move from a starting to an end position via pressure; in the end position, the separation region is separated causing an insulation spacing between the first and second connection contacts. The upsetting region, upset during movement of the sabot from the starting to end positions, is formed as a tubular or rod-shaped element having; the tubular or rod-shaped element has one or more tapers in its cross-sectional diameter; and the cross-sectional diameter is defined perpendicular to the axis.
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9.发明申请公开(公告)号：US20200161064A1
公开(公告)日：2020-05-21
申请号：US16773297
申请日：2020-01-27
申请人： ABB Schweiz AG
发明人： Denis Tehlar , Martin Seeger , Nitesh Ranjan , Patrick Stoller , Raffael Buehler , Jan Carstensen
摘要： The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. According to the application, a counter-arcing component is allocated to the arcing region, the counter-arcing component being designed for counteracting the generation of an arc and/or being designed for supporting the extinction of an arc.
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公开(公告)号：US10373785B2
公开(公告)日：2019-08-06
申请号：US15752684
申请日：2016-07-21
发明人： Sylvio Kosse
摘要： The present disclosure relates to switchgear. Various embodiments may include medium- or high-voltage switchgear with a gas-tight insulating space. For example, a switchgear may include: a gas-tight insulating space where an insulating gas is kept above atmospheric pressure and two switching contacts in the space. At least one of the contacts may movable with respect to a nozzle. The insulating gas may include a mixture of at least 90% by mass of nitrogen and oxygen or nitrogen and carbon dioxide. The nozzle may include a plastic with at least 65% by mass in total of the elements carbon, nitrogen, and oxygen.
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