公开(公告)号：US20240282498A1

公开(公告)日：2024-08-22

申请号：US18649351

申请日：2024-04-29

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Moon Young LEE ,  Baoming GE ,  Fan WANG ,  Lihua CHEN

IPC分类号： H01F21/12 ,  B60K6/40 ,  H01F27/12 ,  H01F27/32 ,  H02K9/00

CPC分类号： H01F21/12 ,  B60K6/40 ,  H01F27/12 ,  H01F27/322 ,  H02K9/00

摘要： An inductor for a converter of an electric machine includes a core defining a channel configured to receive transmission fluid on an outer surface of the core. Coils made of windings are wrapped on the core. The windings enclose an open side of the channel to define an oil flow passage, wherein oil flowing through the oil flow passage is in direct contact with both the windings and the core to absorb heat from the windings and the core.

公开(公告)号：US11946552B2

公开(公告)日：2024-04-02

申请号：US16522348

申请日：2019-07-25

申请人： Sentry Global Solutions, Inc.

发明人： Gerald D. Basore

IPC分类号： F16K17/16 ,  F16K27/12 ,  H01F27/12 ,  H01F27/24 ,  H01F27/28

CPC分类号： F16K17/16 ,  F16K27/12 ,  H01F27/12 ,  H01F27/24 ,  H01F27/28

摘要： An electrical transformer system includes an electrical transformer and a depressurization system in fluid communication with an outlet of the electrical transformer. The depressurization system may include a rupture disk housing assembly, a rupture disk cartridge, and a removable cover. The housing assembly may include a container having an opening and cavity to receive the cartridge and first and second flanges to connect to duct piping of the transformer. The removable cover may enclose the opening of the housing assembly. The cartridge may include a rupture disk secured between first and second disk support plates. The cartridge may be pre-assembled outside the housing assembly. The cartridge may be removed from and/or installed in the housing assembly through the opening. The rupture disk may be inspected, serviced, and/or replaced without disconnecting the housing assembly from the duct piping.

公开(公告)号：US11923127B2

公开(公告)日：2024-03-05

申请号：US17087543

申请日：2020-11-02

申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

发明人： Yunhua Zhang ,  Jieyong Meng ,  Qingchang Chen ,  Yihong Liu ,  Shilin Shen

IPC分类号： H01F27/32 ,  H01F27/02 ,  H01F27/04 ,  H01F27/12 ,  H01F27/14 ,  H01F27/245 ,  H01F27/28

CPC分类号： H01F27/325 ,  H01F27/02 ,  H01F27/04 ,  H01F27/12 ,  H01F27/14 ,  H01F27/245 ,  H01F27/2804 ,  H01F27/2823 ,  H01F27/324 ,  H01F2027/2809 ,  H01F27/32

摘要： The present disclosure relates to a tank of a high-voltage generator including a tank body and a tank lid. There is an opening in the tank lid. The opening is connected to the bellows so as to counteract the volume change of the transformer oil and avoid generation of bubbles. The tank includes a positive transformer, a negative transformer, a bellows, and other components. The high-voltage winding is embedded in the PCBs. The outer insulating bushing is covered by the PCBs so as to improve the insulativity between the turns of the high-voltage winding. In addition, oil barriers may be placed between the positive and the negative transformers, or between the transformers and the ground so as to eliminate the bridge breakdown effect and make the electric field uniform. By means of said measures, the present disclosure improves the stability of the high-voltage generator.

公开(公告)号：US11867683B2

公开(公告)日：2024-01-09

申请号：US16804923

申请日：2020-02-28

申请人： Hitachi Energy Ltd

发明人： Luiz Cheim

IPC分类号： G01N33/28 ,  H01F27/12 ,  H01F27/40 ,  H02H7/04 ,  G01N21/3504

CPC分类号： G01N33/2841 ,  G01N21/3504 ,  H01F27/12 ,  H01F27/402 ,  H02H7/04 ,  H01F2027/404

摘要： A method of analyzing dissolved gas in an oil-filled transformer includes determining a centroid of a polygon that represents a plurality of dissolved gas concentrations. A fault region in which the centroid of the polygon is located is determined, where the plurality of fault regions are defined in a composite fault region map that is a composite of a Duval Pentagons 1 and 2. The method classifies a fault experienced by the transformer based on the determined fault region within the composite fault region map. The classification is done by a machine learning classification technique. Further embodiments classify faults based on dissolved gas levels without determining a centroid of a polygon representing the dissolved gas levels. Related systems are also disclosed.

公开(公告)号：US11815566B2

公开(公告)日：2023-11-14

申请号：US17955267

申请日：2022-09-28

申请人： Aurtra Pty Ltd

发明人： Richard Harris

IPC分类号： G01R31/62 ,  G01N33/28 ,  G01R31/12 ,  H01F27/12 ,  H01F27/32

CPC分类号： G01R31/62 ,  G01N33/2847 ,  G01R31/1281 ,  H01F27/12 ,  H01F27/32

摘要： A method of determining polymerisation of transformer insulation within a transformer. The method includes the steps of measuring a first and second moisture activity of oil in a transformer, and a first and second temperature of the transformer. The method further includes calculating the ratio of the gradients of the moisture equilibrium curves associated with the moisture activity and the temperature. The calculated ratio can then be used to characterise the polymerisation of the insulation and age of the transformer.

公开(公告)号：US20230326651A1

公开(公告)日：2023-10-12

申请号：US18023776

申请日：2021-09-08

申请人： HITACHI ENERGY SWITZERLAND AG

发明人： Samuel Brodeur ,  Mattias Viksten ,  Glenn Stromberg ,  John Richard Tillery ,  Joakim Johansson

IPC分类号： H01F27/04 ,  H01F27/02 ,  H01F27/12 ,  H01F27/40

CPC分类号： H01F27/04 ,  H01F27/025 ,  H01F2027/404 ,  H01F27/402 ,  H01F27/12

摘要： In at least one embodiment, the housing part is configured to be connected to an electric component, to house an electric line, and to be filled with a liquid. The housing part comprises an electrically conductive material and has an open mounting side to be connected to the electric component. A surface-to-volume ratio of the housing part is at least 3 m-1, and a ratio of the volume and a wall rupture pressure of the housing part is at least 0.02 m3MPa-1. A corresponding electric system is operated so that, when an electric arc occurs in the housing part, the housing part absorbs a pressure rise that is led into a component tank.

公开(公告)号：US20230314094A1

公开(公告)日：2023-10-05

申请号：US17918984

申请日：2021-03-26

申请人： Hitachi Energy Switzerland AG

发明人： Samuel Brodeur ,  Miguel Aguirre ,  Rebei Bel Fdhila ,  Frederic Tholence ,  Ulf Sand ,  Saeed Maleksaeedi

IPC分类号： F28F7/02 ,  F28F13/12 ,  H01F27/12

CPC分类号： F28F7/02 ,  F28F13/12 ,  H01F27/12 ,  F28F2210/02 ,  F28F2250/102

摘要： An electric arrangement comprising a casing; a heat generating electric component arranged inside the casing; and a heat exchanger comprising a three dimensional lattice cell structure, the three dimensional lattice cell structure being arranged to conduct a dielectric cooling fluid from the casing at an exterior side of the casing for heat exchange with an ambient fluid, and back towards the casing for cooling of the electric component. A panel for a heat exchanger and a heat exchanger comprising a plurality of panels are also provided.

公开(公告)号：US20190051443A1

公开(公告)日：2019-02-14

申请号：US15676568

申请日：2017-08-14

申请人： ABB Schweiz AG

发明人： Bryan Siefker

IPC分类号： H01F27/12 ,  G01F23/30 ,  G01M3/02 ,  G01N29/04

CPC分类号： H01F27/12 ,  G01F23/30 ,  G01M3/02 ,  G01M3/3227 ,  G01M3/3245 ,  G01N29/04 ,  H01F27/402

摘要： A transformer system includes a transformer and a transformer tank housing the transformer in a bath of a coolant; and a plurality of radiator systems operative to transfer heat from the coolant, each radiator system being in fluid communication with the transformer tank. The transformer system also includes means for determining an occurrence of a potential coolant leak in one or more radiator system of the plurality of radiator systems; and means for isolating only radiator systems of the plurality of radiator systems that are leaking, in response to a determination of the occurrence of the potential coolant leak.

公开(公告)号：US20180247753A1

公开(公告)日：2018-08-30

申请号：US15755511

申请日：2016-08-25

申请人： FMC Kongsberg Subsea AS

发明人： Torbjørn Strømsvik

IPC分类号： H01F27/16 ,  H01F27/12 ,  H01F27/28 ,  H01F27/32 ,  H01F27/02

CPC分类号： H01F27/16 ,  H01F27/02 ,  H01F27/12 ,  H01F27/28 ,  H01F27/32 ,  H01F27/40 ,  H01F27/42 ,  H02J3/1878

摘要： A subsea AC power supply device comprises a subsea transformer, having a primary winding arranged to be connected to a topside AC power supply via a subsea power supply cable, and a subsea shunt reactor, connected in parallel with the primary winding of the subsea transformer. The subsea transformer and the subsea shunt reactor are arranged within a common subsea watertight housing. A subsea AC power supply system comprises a topside AC power supply, a subsea power supply cable connected to the topside AC power supply, and a subsea AC power supply device connected to the subsea power supply cable.

公开(公告)号：US20180233271A1

公开(公告)日：2018-08-16

申请号：US15889860

申请日：2018-02-06

申请人： Deere & Company

发明人： Nicolai Tarasinski ,  Volker Kegel ,  Dennis Kremer

IPC分类号： H01F27/28 ,  H01F27/12

CPC分类号： H01F27/2876 ,  H01F27/12 ,  H01F27/125

摘要： A transformer with integrated cooling is disclosed. The transformer comprises a primary winding and a secondary winding, and a coolant line partly or completely embedded in at least one of the primary or secondary windings. The coolant line is supplied with coolant from a supply device. The coolant line has a plurality of exit holes that are arranged to lead in a direction of at least one of the primary or secondary winding, so as to supply it with coolant.