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公开(公告)号：US20240082751A1
公开(公告)日：2024-03-14
申请号：US18372256
申请日：2023-09-25
申请人： The Ardry Group
发明人： Ed Vance
CPC分类号： B01D15/10 , G01N33/2847 , H01F27/14
摘要： The disclosure includes embodiments of systems and methods for removing moisture from an electric power transformer. According to an embodiment, a moisture removal system includes a pump to move oil from the transformer into the system; one or more incoming oil moisture and temperature sensors to detect a first moisture level and temperature of oil; a processor to receive the moisture and temperature and determine an estimated paper moisture value of the insulation of the transformer, and compare the estimate to a target paper moisture value; and an overdry prevention bypass valve positioned in a first position to divert oil without drying when the estimated paper moisture value is equal to or less than the target value, and in a second position to channel oil through one or more drying cylinders when the estimated paper moisture value exceeds the target value.
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公开(公告)号：US11742128B2
公开(公告)日：2023-08-29
申请号：US16584277
申请日：2019-09-26
发明人： Ion C. Radu , George K. Frimpong
CPC分类号： H01F27/025 , H01F3/00 , H01F27/06 , H01F27/14 , H01F27/26 , H01F27/263
摘要： A transformer having a transformer core that forms a magnetic flux path between and through a top yoke, leg, and bottom yoke of the transformer core. A winding can be disposed about the leg. Further, a flitch plate, which can have at least one slot that is configured to reduce eddy losses generated by the winding, can be disposed adjacent to the leg and extend between the top yoke and the bottom yoke. The flitch plate can be clamped to the top and bottom yokes by top and bottom clamps, respectively. The top and bottom clamps can each include at least one cutout that reduces an attraction of stray flux from the winding and into the corresponding top and bottom clamps. Additionally, at least one of the top clamp and the bottom clamp can include an internal lattice structure.
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3.发明公开公开(公告)号：US20230146976A1
公开(公告)日：2023-05-11
申请号：US17947201
申请日：2022-09-19
发明人： Jinsong Li , Hua Yu , Qingsong Chen , Hong Liu , Guodong Li , Guangqi Mu , Shuai Li , Like Dong , Jin Zhao , Hui Yuan , Xuan Wang , Zhumao Lu , Min Jiang , Shuai Wang , Shengzhi Chang
摘要： Disclosed are a defect monitoring apparatus and detection method for a transformer oil conservator based on edge computing. The monitoring apparatus includes: a sensing terminal, an edge intelligent gateway, a monitoring terminal, an oil conservator defect monitoring cloud platform, and a client terminal. The edge intelligent gateway and the monitoring terminal are both disposed in a substation. The monitoring terminal is configured to access the edge intelligent gateway. The sensing terminal includes: an airflow sensor, an oil temperature sensor, an ambient temperature sensor, and a microwave oil level measurement assembly. The sensing terminal sends detection data information to the edge intelligent gateway, and the edge intelligent gateway stores and determines a category of the detection data information. The present disclosure can recognize capsule damage, partial blockage of a breathing circuit, leakage in the breathing circuit, moisture impurities in a breathing tube, and false oil level.
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公开(公告)号：US20220208432A1
公开(公告)日：2022-06-30
申请号：US17604502
申请日：2020-03-31
发明人： Mario Scala
摘要： A method for drying a transformer which has a multistage cooling system, in particular a power transformer or a choke, has at least one transformer winding and at least one insulator for electrical insulation. Individual cooling stages of the cooling system are respectively associated with a loading state range of the transformer and are activated when the respective loading state range of the transformer is reached. The loading state range is a function which depends at least on a temperature of the transformer. The drying method is carried out during the operation of the transformer. An upper cooling stage, which lies above the lowest cooling stage, is or remains deactivated and the cooling stage which is situated directly below the upper cooling stage is or remains activated while the transformer is in the loading state range which is associated with the upper cooling stage.
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公开(公告)号：US11322289B2
公开(公告)日：2022-05-03
申请号：US16340266
申请日：2017-09-15
发明人： Joerg Findeisen
摘要： An electrical device for connecting to a high-voltage network has a vessel, which is filled with an insulating fluid, an active part, which is arranged in the vessel and which has a magnetizable core and partial windings for producing a magnetic field in the core, and a cooling apparatus for cooling the insulating fluid. The electrical device can be operated at high temperatures. At least one barrier system is provided, which at least partly delimits encapsulated spaces, in each of which at least one partial winding is arranged, the barrier system guiding the insulating fluid cooled by the cooling apparatus across the encapsulated spaces in such a way that different encapsulated-space temperatures arise in the encapsulated spaces.
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公开(公告)号：US20210343465A1
公开(公告)日：2021-11-04
申请号：US17258946
申请日：2019-03-20
摘要： A detection device to detect an operating condition of air-drying salts contained in a breather for power transformers operatively coupleable to the breather is described. The detection device comprises illumination means comprising at least a light source adapted to illuminate airdrying salts contained in the breather with a first light radiation. The detection device also comprises acquisition means comprising at least a light sensor adapted to receive a second light radiation coming from air-drying salts contained in the breather. The acquisition means is configured to provide first detection signals indicative of the color of the second light radiation. The detection device further comprises a control unit for controlling operation of the detection device. The control unit is configured to receive and process the first detection signals.
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公开(公告)号：US20210090778A1
公开(公告)日：2021-03-25
申请号：US17020633
申请日：2020-09-14
IPC分类号： H01F27/14
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 having a downwardly facing domed portion extending toward the outlet of the electrical transformer. The domed portion has an apex and a base with a retention portion surrounding the domed portion adjacent the base. A score line network extends circumferentially around the domed portion adjacent the base and spaced apart from the apex. The score line network includes a plurality of serrated score line segments and a plurality of hinge score line extending from the score line segments towards the apex of dome portion. The rupture disk may be interested into a housing assembly with a removable cover.
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公开(公告)号：US10811180B1
公开(公告)日：2020-10-20
申请号：US16691423
申请日：2019-11-21
发明人： Gerald D. Basore
IPC分类号： H01F27/14
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 having a downwardly facing domed portion extending toward the outlet of the electrical transformer. The domed portion has an apex and a base with a retention portion surrounding the domed portion adjacent the base. A score line network extends circumferentially around the domed portion adjacent the base and spaced apart from the apex. The score line network includes a plurality of serrated score line segments and a plurality of hinge score line extending from the score line segments towards the apex of dome portion. The rupture disk may be interested into a housing assembly with a removable cover.
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公开(公告)号：US10340075B2
公开(公告)日：2019-07-02
申请号：US15321820
申请日：2015-06-23
发明人： Yunhua Zhang , Jieyong Meng , Qingchang Chen , Yihong Liu , Shilin Shen
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.
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公开(公告)号：US20190172632A1
公开(公告)日：2019-06-06
申请号：US16266046
申请日：2019-02-02
发明人： Yunhua ZHANG , Jieyong MENG , Qingchang CHEN , Yihong LIU , Shilin SHEN
CPC分类号： H01F27/325 , H01F27/02 , H01F27/04 , H01F27/12 , H01F27/14 , H01F27/245 , H01F27/2804 , H01F27/2823 , H01F27/32 , H01F27/324 , H01F2027/2809
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.
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