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1. 发明申请

US20220384128A1 Breaking Device 有权
公开(公告)号：US20220384128A1
公开(公告)日：2022-12-01
申请号：US17663081
申请日：2022-05-12
申请人： ABB S.p.A.
发明人： James Mannekutla , Zichi Zhang , Lars Jonsson , Julia Viertel , Alessio Bergamini
IPC分类号： H01H33/06 , H01H33/56
摘要： A breaking device for interrupting current includes an electrically conducting outer member, an electrically conducting inner member arranged radially inside the outer member with respect to a breaking axis and an electrically insulating or semiconducting breaking member arranged radially between the outer member and the inner member with respect to the breaking axis, where the breaking member is arranged to move along the breaking axis from a starting position to a protruding position in which the breaking member protrudes from a space within the outer member for interrupting a current between the outer member and the inner member and the breaking member includes an inner tubular element and an outer tubular element, where the outer tubular element is joined to an outer surface of the inner tubular element thereby defining a recess between the outer tubular element and the inner tubular element.

2. 发明授权

US11456132B2 Electrical switching device 有权
公开(公告)号：US11456132B2
公开(公告)日：2022-09-27
申请号：US17263632
申请日：2019-06-27
申请人： Siemens Energy Global GmbH & Co. KG
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.

3. 发明申请

US20220026385A1 MONITORING OF GASES PRODUCED IN AN INSULATING-MEANS CIRCUIT 有权
公开(公告)号：US20220026385A1
公开(公告)日：2022-01-27
申请号：US17311362
申请日：2019-12-05
申请人： Maschinenfabrik Reinhausen GmbH
发明人： Rainer Frotscher , Andreas Sachsenhauser
IPC分类号： G01N27/16 , H01H33/56
摘要： A method monitors gases produced in an insulating medium circuit. The insulating medium circuit is in contact with a transition resistor of an on-load tap-changer. The method includes: ascertaining a time profile of a resistor temperature of the transition resistor during a loading time period; and determining at least one characteristic value for characterizing the gases produced based upon the time profile of the resistor temperature.

4. 发明申请

US20210175030A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20210175030A1
公开(公告)日：2021-06-10
申请号：US16768648
申请日：2017-12-01
申请人： KABUSHIKI KAISHA TOSHIBA , Toshiba Energy Systems & Solutions Corporation
发明人： Takanori IIJIMA , Toshiyuki UCHII , Amane MAJIMA , Norimitsu KATO , Akira SHIMAMURA
IPC分类号： H01H33/56 , H01H33/91
摘要： A gas circuit breaker that can reduce deterioration of insulation performance thereof and current breaking performance thereof by the unnecessary gas generated from the arc-extinguishing gas sprayed to the arc is provided. The gas circuit breaker includes a sealed container (8) which arc-extinguishing gas is filled therein, a first fixed contactor (2) which is fixed to the sealed container (8), a second fixed contactor portion (4) which is fixed to the sealed container (8), and a movable contactor portion (3) which moves between the first contactor portion (2) and the second contactor portion (4), and which conducts and breaks current between the first contactor portion (2) and the second contactor portion (4), in which an arc generated between a fixed arc contactor (21) provided to the first fixed contactor portion (2) and a movable arc contactor (31) provided to the movable contactor portion (3) at a time of current breaking action is extinguished by an arc-extinguishing gas being sprayed thereto, and the gas circuit breaker (1) includes a gas chamber (5) to accumulate an unnecessary gas generated from the arc-extinguishing gas sprayed to the arc.

5. 发明授权

US11005241B2 Distribution of a dielectric gaseous mixture to a high-voltage apparatus 有权
公开(公告)号：US11005241B2
公开(公告)日：2021-05-11
申请号：US16317061
申请日：2017-07-07
申请人： L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
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.

6. 发明申请

US20200279705A1 Gas Circuit Breaker 审中-公开
公开(公告)号：US20200279705A1
公开(公告)日：2020-09-03
申请号：US16645667
申请日：2018-07-30
申请人： Hitachi, Ltd.
发明人： Toshiaki SAKUYAMA , Hajime URAI , Masanao TERADA , Ryoichi SHIOBARA , Takahiro NISHIMURA , Makoto HIROSE , Yuichiro YAMANE
IPC分类号： H01H33/91 , H01H33/56
摘要： While lowering sliding resistance of an exhaust cylinder and reducing effects on a circuit breaking operation, an amount of high temperature and high pressure gas discharged into an insulating support cylinder is reduced, and both ground insulation performance and circuit breaking performance are improved. To solve the above problem, a gas circuit breaker of the present invention is characterized by including a gas suppressing means composed of a protruded portion which is formed on a horizontal surface facing an exhaust cylinder of a shaft guide and which forms a gap between itself and the exhaust cylinder and an enlarged portion which is adjacent to the protruded portion and where a gap to the exhaust cylinder is enlarged so that the shaft guide, which operates along an inner circumferential surface of the exhaust cylinder, which is provided to an inner circumferential portion of a movable side main conductor and is provided to outer circumferences of an exhaust shaft and an operation rod, and couples the operation rod with the exhaust shaft, is axially adjacent to a sliding member that slides along the exhaust cylinder with no space to the exhaust cylinder and suppresses discharge of heated and pressurized insulating gas.

7. 发明授权

US10763060B2 Mechanical cut-off apparatus for a high-voltage or very high-voltage electric circuit with splitting device 有权
公开(公告)号：US10763060B2
公开(公告)日：2020-09-01
申请号：US16507252
申请日：2019-07-10
申请人： SUPERGRID INSTITUTE
发明人： Maxime Gery , Paul Vinson
IPC分类号： H01H33/08 , H01H33/12 , H01H33/14 , H01H33/56
摘要： A mechanical breaker apparatus for breaking an electric circuit comprises two electrodes that are movable relative to each other, and including an electric arc splitter device having a multitude of distinct conductive elements that are spaced apart and electrically insulated relative to one another. The splitter device has a first portion and a second portion that are movable relative to each other between: an electrical contact position; and a spaced-apart position of the two portions. The splitter device has at least one series of the distinct conductive elements that, in an electrically closed position of the electrodes of the mechanical apparatus, are arranged along the continuous electrically-conductive path for the nominal electric current through the apparatus as defined by the two portions of the splitter device in the electrical contact position.

8. 发明授权

US10727013B2 Gas-insulated low- or medium-voltage switch with swirling device 有权
公开(公告)号：US10727013B2
公开(公告)日：2020-07-28
申请号：US16311890
申请日：2017-06-19
申请人： ABB Schweiz AG
发明人： Erik Jonsson
IPC分类号： H01H1/38 , H01H33/12 , H01H33/56 , H01H33/70 , H01H33/90
摘要： A gas-insulated low- or medium-voltage switch for system voltages within 1 to 52 kV and for up to 2000 A rated current includes first and second contacts being movable in relation to each other along an axis of the switch and defining a quenching region in which an arc is formed during a current breaking operation; and an arc-extinguishing system for extinguishing the arc during the current breaking operation. The arc-extinguishing system may include a pressurization system with a puffer chamber, and a nozzle system connecting the pressurization system with the quenching region, the nozzle system having a nozzle at its outlet for blowing the pressurized quenching gas onto the arc formed in the quenching region during the current breaking operation; and a swirling device configured for generating a subsonic swirl flow of a quenching gas onto the quenching region during the current breaking operation, wherein the swirling device is arranged at an entrance of the nozzle system. The arc-extinguishing system further includes a swirling device configured for generating a subsonic swirl flow of a quenching gas onto the quenching region during the current breaking operation, wherein the swirling device is arranged at an entrance of the nozzle system.

9. 发明授权

US10475607B2 Gas circuit breaker 有权
公开(公告)号：US10475607B2
公开(公告)日：2019-11-12
申请号：US15893733
申请日：2018-02-12
申请人： Kabushiki Kaisha Toshiba
发明人： Tomohiko Jimbo , Biswas Debasish , Amane Majima
IPC分类号： H01H33/70 , H01H33/56 , H01H33/74 , H01H33/88 , H01H33/90 , H01H33/91
摘要： In a gas circuit breaker, arc-extinguishing gas is filled in a container. A movable portion housed in the container includes a movable arc contact. The movable portion includes a pressure accumulator that increases pressure of an arc-extinguishing gas. An opposing portion housed in the container includes an opposing arc contact, an exhaust pipe, and a shielding portion. The shielding portion includes a first shielding wall intersecting with an axial direction of the pipe and a second shielding wall having a cylindrical shape extending from the first shielding wall toward the movable portion along the axial direction of the pipe. The second shielding wall includes through-holes. Lengths of the respective through-holes along the axial direction are from 18 millimeter's to 55 millimeters inclusive. An arc-extinguishing gas whose pressure has been increased in the pressure accumulator flows into a space to extinguish arc discharge, and flows into the second shielding wall.

10. 发明授权

US10381179B2 Gas-insulated medium voltage switchgear with a circuit breaker pole part arrangement 有权
公开(公告)号：US10381179B2
公开(公告)日：2019-08-13
申请号：US15898664
申请日：2018-02-19
申请人： ABB Schweiz AG
发明人： Manfred Sauer
IPC分类号： H01H33/666 , H01H33/40 , H01H33/56 , H01H33/02 , H02B13/035
摘要： A gas-insulated medium voltage switchgear includes: a circuit breaker pole part arrangement in a gastight compartment of the switchgear; a drive arrangement for switching actuation of the circuit breaker, the drive arrangement and the pole part arrangement being fixed on a common plate or frame, which is provided with the gastight compartment, and being configured to close the gastight compartment gastightly such that in a completely mounted position of the plate or frame, the circuit breaker pole part arrangement is positioned inside the gastight compartment, and the drive arrangement is positioned outside the gastight compartment; and a standardized circuit breaker drive adaptable to switchgear arrangements with different pole distances. The plate or frame is provided with holes, in which gastight mechanical feedthroughs are arranged, through which the standardized circuit breaker drive is coupled with each vacuum interrupter in the circuit breaker pole part arrangement.

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