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31. 发明申请

US20210359617A1 ELECTRICAL ASSEMBLY 有权
公开(公告)号：US20210359617A1
公开(公告)日：2021-11-18
申请号：US16982693
申请日：2019-03-20
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： Chandra Mohan Sonnathi , Radnya Anant Mukhedkar , Rajaseker Reddy Ginnareddy , Amit Kumar , Damien Pierre Gilbert Fonteyne
IPC分类号： H02M5/458 , H02J3/36 , H02M1/32 , H02M7/219
摘要： There is provided an electrical assembly (20) for interconnecting first and second networks (40). The electrical assembly (20) comprises a power transmission medium (36,38) and a converter (22), the power transmission medium (36,38) configured for connection to the first network, the converter (22) including: a first terminal (24,26) and a second terminal (34), the first terminal (24,26) connected to the power transmission medium (36,38), the second terminal (34) configured for connection to the second network (40); at least one switching module (44) arranged to interconnect the first terminal (24,26) and the second terminal (34), the or each switching module (44) switchable to control a transfer of power between the first and second networks (40); at least one discharge circuit including a discharge switching element (50) and a discharge resistor (52), the or each discharge switching element (50) switchable to switch the corresponding discharge resistor (52) into and out of the converter (22); and a controller (58) configured to selectively control the switching of the or each discharge switching element (50) to form a current path (60) in the converter (22), the current path including the or each discharge resistor (22), so that a discharging current flows through the current path to discharge an energy stored in the power transmission medium (36,38).

32. 发明授权

US11165420B2 Switching apparatus 有权
公开(公告)号：US11165420B2
公开(公告)日：2021-11-02
申请号：US16617237
申请日：2018-06-01
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： Colin Charnock Davidson
IPC分类号： H03K17/00 , H03K17/10 , H03K17/26
摘要： There is provided a switching apparatus (30,130) comprising: first and second nodes (32,34) operably connectable to a line voltage (44); first and second switching branches (38,40) connected in parallel between the first and second nodes (32,34), the first switching branch (38) including at least one first switching element (46,60); and the second switching branch (40) including a pair of switching assemblies connected in series between the first and second nodes (32,34), the second switching branch (40) further including a junction (48) between the pair of switching assemblies, each switching assembly including at least one second switching element (50), at least one of the switching assemblies further including at least one impedance element (52), wherein the switching apparatus (30,130) further includes a shunt impedance (42) and a third node (36), the shunt impedance (42) arranged to form a permanent electrical connection between the junction (48) and the third node (36), the third node (36) operably connectable to a voltage that is different in magnitude to the line voltage (44), the or each impedance element (52) arranged in the corresponding switching assembly to combine with the shunt impedance (36) so as to define a current path which extends between the corresponding first or second node (32,34) and the third node (36).

33. 发明申请

US20210328422A1 ELECTRONIC VALVE APPARATUS 有权
公开(公告)号：US20210328422A1
公开(公告)日：2021-10-21
申请号：US17270369
申请日：2019-08-14
申请人： General Electric Technology GmbH
发明人： Carl D. BARKER , Colin Charnock DAVIDSON , John Lewis OUTRAM , Timothy James STOTT , Robert Stephen WHITEHOUSE
IPC分类号： H02H7/26 , H02J3/36
摘要： The present disclosure relates to an electronic valve apparatus for a high voltage direct current, HVDC, power transmission system. The electronic valve apparatus comprises a first device chain (301) including a plurality of first devices (302, 303) connected in series between an input node (330) and an output node (332) of the electronic valve apparatus (300, 400, 500). Each of the plurality of first devices (302, 303) has an asymmetric transfer function configured substantially to block current flow through the device in a first direction, and the plurality of first devices (302, 303) are connected such that they all block current flow in the same direction. The electronic valve apparatus also includes a second device chain (311) including a plurality of second devices (312, 313) connected in series between the input node (330) and the output node (332). Each of the plurality of second devices (312, 313) has an asymmetric transfer function configured substantially to block current flow through the device in a first direction, and the plurality of second devices (312, 313) are connected such that they all block current flow in the same direction. The second device chain (311) is connected in parallel with the first device chain (301).

34. 发明授权

US11145476B2 Electric high-voltage circuit breaker 有权
公开(公告)号：US11145476B2
公开(公告)日：2021-10-12
申请号：US16624386
申请日：2018-06-11
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： Achim Stelter
IPC分类号： H01H33/86 , H01H33/90 , H01H33/91
摘要： Embodiments of the disclosure include systems and methods for providing an electric high-voltage circuit breaker. In one embodiment, a circuit breaker includes a primary chamber; and a compression chamber, wherein the circuit breaker further includes a valve configured to control a fluid flow between the primary chamber and the compression chamber, wherein the valve includes a valve body, a first valve plate that is arranged axially movable with respect to the valve body, and a second valve plate that is arranged between and movable with respect to the valve body and the first valve plate, wherein said first valve plate includes at least one opening enabling the fluid flow through the first valve plate, wherein a first surface of the valve body forms a valve seat for the first valve plate, and wherein a first surface of the first valve plate forms a valve seat for the second valve plate.

35. 发明授权

US11092331B2 Once-through evaporator systems 有权
公开(公告)号：US11092331B2
公开(公告)日：2021-08-17
申请号：US16193953
申请日：2018-11-16
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： Christoph Bernhard Ruchti , Petrus Johannes Koller , Chuan Wang , Jeffrey Fredrick Magee , Hans Ulrich Lenherr , Alexander Taylor
IPC分类号： F22B35/10 , F22B29/06 , F22B1/08 , F22B1/18 , F22B35/18
摘要： The present application provides a once-through evaporator system. The once-through evaporator system may include a number of enlarged once-through evaporator sections, a first superheater positioned immediately downstream of the enlarged once-through evaporator sections, a second superheater positioned downstream of the first superheater, and an attemperator positioned between the first superheater and the second superheater.

36. 发明授权

US11056300B2 Circuit breaker comprising a ceria-based catalyst for CO conversion into CO2 有权
公开(公告)号：US11056300B2
公开(公告)日：2021-07-06
申请号：US16614436
申请日：2018-05-16
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： Yannick Kieffel , Louis Maksoud
IPC分类号： H01H33/22 , H01H33/74 , H01H33/78
摘要： A circuit breaker, comprising an enclosure comprising: —at least two arcing contacts that are movable axially relative to each other, between an open position of the circuit breaker in which the arcing contacts are separated from each other and a closed position of the circuit breaker in which the arcing contacts are in contact with each other; and —a gas inlet configured to blow an arc-control gas in order to interrupt an electric arc that is likely to form during movement of the arcing contacts from the closed position to the open position of the circuit breaker, wherein the arc-control gas comprises at least 80% of carbon dioxide; wherein the enclosure further comprises a catalytic material, which converts carbon monoxide that forms after ionization of the carbon dioxide during arcing, into carbon dioxide, said catalytic material comprising ceria and a precious metal.

37. 发明申请

US20210164119A1 APPARATUS AND METHOD FOR CONTROLLED ALUMINA SUPPLY 有权
公开(公告)号：US20210164119A1
公开(公告)日：2021-06-03
申请号：US17053242
申请日：2019-05-17
申请人： GENERAL ELECTRIC TECHNOLOGY GMBH
发明人： Anders Kenneth SORHUUS , Sivert OSE
IPC分类号： C25C3/22 , C25C3/20 , B01D53/12 , B01D39/08
摘要： An apparatus and a method are useful for removing pollutants from process effluent gas produced by an electrolytic cell used in an aluminum production plant to produce aluminum. The apparatus and method use a flow control device to control alumina supply to an electrolytic cell and to a dry scrubber contact reactor.

38. 发明授权

US11022630B2 Measurement of current within a conductor 有权
公开(公告)号：US11022630B2
公开(公告)日：2021-06-01
申请号：US16332860
申请日：2017-09-14
申请人： General Electric Technology GmbH
发明人： Hengxu Ha , Celso Souza , Davi Bernardi , Xianwu Zeng , Elias Bencz
IPC分类号： G01R15/18 , G01R19/165 , G01R19/00 , G06F7/64 , G01R19/25 , G01R19/32
摘要： In the field of Rogowski coils for the measurement of current within a conductor there is provided an electrical interface for connection to a Rogowski coil arranged around a primary conductor. The electrical interface includes an input that is configured to sample an input voltage signal from the Rogowski coil. The electrical interface also has an integrator circuit which includes an integrator module that is configured to integrate the sampled input voltage signal to provide an output voltage signal from which can be derived a primary current flowing through the primary conductor. The integrator module employs a transfer function that includes an attenuation factor.

39. 发明授权

US11017919B2 Medium-voltage or high-voltage electrical device having low-thickness hybrid insulation 有权
公开(公告)号：US11017919B2
公开(公告)日：2021-05-25
申请号：US16066380
申请日：2016-12-28
申请人： General Electric Technology GmbH
发明人： David Gautschi , Robert Luescher , Yannick Kieffel , François Biquez
IPC分类号： H01B3/56 , H01H33/22 , H02B13/055 , H01B3/40 , H01B7/282 , H01B3/10 , H01H33/56
摘要： A medium-voltage or high-voltage electrical device comprising a sealed enclosure in which are located electrical components covered with a solid dielectric layer and a gaseous medium ensuring electrical insulation and/or extinguishing electrical arcs, the gaseous medium comprising heptafluoroisobutyronitrile and a dilution gas, the thickness of the solid dielectric layer being less than 1 mm and being produced from a material comprising a polyepoxide or polyurethane resin optionally containing a filler or aluminum oxide.

40. 发明授权

US11011335B2 In or relating to circuit interruption devices 有权
公开(公告)号：US11011335B2
公开(公告)日：2021-05-18
申请号：US15536796
申请日：2015-12-10
申请人： General Electric Technology GmbH
发明人： Yang Xia , Yongyue Ma , Brian Kirby , Gajendiran Balakrishnan , Hengxu Ha , Sankara Subramanian Srigopalakrishnamurthi
IPC分类号： H01H71/12 , H01H71/04 , H01H71/24
摘要： A trip apparatus for a circuit interruption device that comprises a coil operatively connectable to a circuit interruption device. The coil is configured to selectively operate the circuit interruption device to interrupt when a current flowing through the circuit interruption device exceeds a threshold. The trip apparatus also includes a current measuring device configured to selectively measure a coil current flowing through the coil to determine a measured coil current signal. In addition, the trip apparatus includes a monitoring device configured to determine the derivative of the measured coil current signal and to perform a correlation of the derivative of the measured coil current signal and a reference derivative of a reference coil current signal to determine a correlation output. The monitoring device is further configured to compare the correlation output with a reference correlation threshold to determine whether an operating condition of the coil is normal or abnormal.

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