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1. 发明授权

EP4099346B1 HELICOIDAL GUIDE FOR THE COOLING OF A MEDIUM-FREQUENCY TRANSFORMER 有权
公开(公告)号：EP4099346B1
公开(公告)日：2024-08-21
申请号：EP21177404.7
申请日：2021-06-02
IPC分类号： H01F27/08 , H01F27/12
CPC分类号： H01F27/085 , H01F27/12

2. 发明公开

EP4402601A1 A METHOD FOR OBTAINING AN IMPROVED TRANSFORMER DESIGN FOR A POWER PLANT 审中-实审
公开(公告)号：EP4402601A1
公开(公告)日：2024-07-24
申请号：EP22822277.4
申请日：2022-11-03
申请人： Hitachi Energy Ltd
发明人： LANERYD, Tor , SEIER, Sebastian
IPC分类号： G06F30/20 , G06F30/17 , H01F27/12 , H01F30/00 , H01F41/00 , G06F113/04 , G06F113/08 , G06F119/08
CPC分类号： H01F27/12 , G06F2119/0820200101 , G06F30/20 , G06F30/17 , G06F2113/0820200101 , G06F2113/0420200101 , H01F30/00 , H01F41/00

3. 发明公开

EP4369362A1 COOLING ARRANGEMENT AND METHOD FOR COOLING AT LEAST ONE OIL-TO-AIR EXTERNAL HEAT EXCHANGER 审中-公开
公开(公告)号：EP4369362A1
公开(公告)日：2024-05-15
申请号：EP22207018.7
申请日：2022-11-11
申请人： Hitachi Energy Ltd
发明人： SAND, Ulf , BEL FDHILA, Rebei , HOSAIN, Lokman
IPC分类号： H01F27/08 , F04F5/46 , F28D1/02 , F28F13/06 , H01F27/12 , H01F27/33
CPC分类号： H01F27/085 , H01F27/12 , F28D1/024 , H01F27/33 , F05D2260/60120130101 , F04F5/16 , F28C3/08 , F28D2021/002820130101
摘要： A cooling arrangement (20) for cooling at least one OAEHE in a transformer. The cooling arrangement (20) comprises at least one impeller-motor device (10), at least one fluid pipe (11) and at least one fluid discharge device (12). The at least one impeller-motor device (10) is adapted to supply a humidity-controlled fluid to the inlet of the at least one fluid discharge device (12) via the at least one fluid pipe (11) and cause the humidity-controlled fluid to flow through the at least one fluid discharge device (12) and be discharged through the at least one fluid outlet of the at least one fluid discharge device (12) in a direction of the at least one OAEHE.

4. 发明授权

EP2941674B1 PREDICTING THE OIL TEMPERATURE OF A TRANSFORMER 有权
公开(公告)号：EP2941674B1
公开(公告)日：2018-09-12
申请号：EP13802783.4
申请日：2013-11-19
申请人： ABB Schweiz AG
发明人： DAGNINO, Aldo , CHEIM, Luiz , LIN, Lan , PATEL, Poorvi
IPC分类号： G05B13/02 , H01F27/12
CPC分类号： H01F27/12 , G05B13/027 , H01F2027/406
摘要： Method and system for predicting an oil temperature of a transformer for a desired load and/or predicting a load that a transformer can support for a desired time. A machine learning algorithm is developed using historical data of a transformer. After the algorithm is developed, historical data corresponding to the transformer are input into the algorithm to develop a profile of the transformer describing how the temperature of oil within the transformer is expected to change as a function of a desired load. Using the profile, the of temperature of the transformer is predicted for a desired load. In this way, a prediction is made as to whether and/or for how long a transformer may support a desired load before the oil temperature reaches a specified threshold and/or before the transformer fails due to the load.

5. 发明公开

EP3355323A1 COOLING ASSEMBLY FOR A HIGH VOLTAGE ASSEMBLY AND METHOD TO OPERATE A COOLING ASSEMBLY FOR A HIGH VOLTAGE ASSEMBLY 审中-公开
公开(公告)号：EP3355323A1
公开(公告)日：2018-08-01
申请号：EP17153608.9
申请日：2017-01-27
申请人： General Electric Technology GmbH
发明人： STIRL, Tobias , HOBA, Günther
IPC分类号： H01F27/12
CPC分类号： H01F27/12
摘要： It is proposed a cooling assembly (2) for connecting to a compartment (18) of a high voltage assembly (16) via a flow line (4) and a return line (6), the cooling assembly (2) comprising: a heat exchange assembly (8) adapted to dissipate heat from the insulation liquid (10) to the environment; and a pump (14) arranged at the flow line (4) or the return line (6) and being operable at variable speeds.

6. 发明公开

EP3316268A1 TRANSFORMATOR MIT BEHEIZTEM RADIATORENGLIED 有权转让
标题翻译：带有加热散热器部件的变压器
公开(公告)号：EP3316268A1
公开(公告)日：2018-05-02
申请号：EP17193689.1
申请日：2017-09-28
申请人： Siemens Aktiengesellschaft
发明人： Bachinger, Florian
IPC分类号： H01F27/02 , H01F27/12
CPC分类号： H01F27/12 , H01F27/025 , H01F27/16
摘要： Um ein elektrisches Gerät (5) zum Anschluss an ein Hochspannungsnetz mit einem Kessel (6), der mit einem Isolierfluid (7) befüllt ist und in dem ein magnetisierbarer Kern (8) und wenigstens eine einen Abschnitt (10) des Kerns (8) umschließende Wicklung (9) angeordnet sind, und einer Kühlanlange (11), die wenigstens einen Radiator (1) umfasst, der außerhalb des Kessels (6)angeordnet und mit diesem zum Umwälzen des Isolierfluids (7) über den Radiator (1) verbunden ist, wobei der Radiator (1) wenigstens zwei einander parallel geschaltete Wärmeaustauschglieder (3) aufweist, zu schaffen, mit dem ein Kaltstart beschleunigt und auch bei tieferen Temperaturen durchgeführt werden kann, wird vorgeschlagen, dass nur eines der Wärmeaustauschglieder (3) als beheiztes Wärmeaustauschglied (12) in wärmeleitender Verbindung mit einer Wärmequelle steht, die beim Starten des Betriebs des elektrischen Geräts (5) Wärme erzeugt.
摘要翻译：一种用于连接到高压网络的电器（5），所述高压网络包括充满绝缘流体（7）的锅炉（6），并且其中可磁化核心（8）和核心（8）的至少一部分（10）包围绕组（9）被布置，和一个冷却设备（11），包括至少一个散热器（1），其被布置在锅炉外侧（6）和与该对（7）通过散热器循环的绝缘流体（1）连接其中，所述散热器（1）包括至少两个相互并联连接的热交换元件（3）提供，在冷启动加速，并且可在较低温度下进行的，所以建议仅在热交换元件中的一个（3）（作为加热热交换部件 12）与开始电气设备（5）的操作时产生热量的热源热传导连接。

7. 发明授权

EP2104116B1 Oil cooling system, particularly for transformers feeding traction electric motors, transformer with said system and method for determining the cooling fluid flow in a cooling system 有权转让
标题翻译：油冷却系统，特别是用于馈送牵引电动机的变压器的油冷却系统，具有用于确定冷却系统中的冷却流体流动的所述系统和方法的变压器
公开(公告)号：EP2104116B1
公开(公告)日：2017-05-10
申请号：EP08425152.9
申请日：2008-03-12
申请人： ALSTOM Transport Technologies
发明人： Moia, Piero
IPC分类号： H01F27/12 , H01F27/40
CPC分类号： H01F27/12 , H01F2027/404 , H01F2027/406

8. 发明公开

EP3159902A1 INSULATION METHOD AND DEVICE FOR HIGH-VOLTAGE GENERATOR OIL TANK 审中-公开
标题翻译：伊朗伊斯兰堡共和国
公开(公告)号：EP3159902A1
公开(公告)日：2017-04-26
申请号：EP15812407.3
申请日：2015-06-23
申请人： Shanghai United Imaging Healthcare Co., Ltd.
发明人： ZHANG, Yunhua , MENG, Jieyong , CHEN, Qingchang , LIU, Yihong , SHEN, Shilin
IPC分类号： H01F27/14 , H01F27/32
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.
摘要翻译：本公开涉及一种包括罐体和罐盖的高压发生器的罐。罐盖有一个开口。开口连接到波纹管，以抵消变压器油的体积变化，避免产生气泡。油箱包括正变压器，负变压器，波纹管和其他部件。高压绕组嵌入在PCB中。外绝缘套管被PCB覆盖，以提高高压绕组匝间的绝缘性。此外，可以在正负变压器之间或变压器和地之间放置油障碍物，以消除桥击穿效应并使电场均匀。通过所述措施，本公开提高了高压发生器的稳定性。

9. 发明公开

EP3098821A1 IN-VEHICLE TRANSFORMER 审中-公开
标题翻译：变压器一个人EINES FAHRZEUGES
公开(公告)号：EP3098821A1
公开(公告)日：2016-11-30
申请号：EP14878860.7
申请日：2014-01-20
申请人： Mitsubishi Electric Corporation
发明人： NODA, Toshihiro
IPC分类号： H01F27/28 , H01F27/12 , H01F27/24 , H01F27/245
CPC分类号： H01F27/12 , H01F27/025 , H01F27/245 , H01F27/2871
摘要： There are provided an iron core (110) including a main leg (111), two side legs located parallel to the main leg (111) and opposite each other with respect to the main leg (111), and two pairs of connections extending in a direction orthogonal to the main leg (111) and connecting opposite ends of the main leg (111) to opposite ends of the side legs, respectively, the iron core being formed as one piece by joining a plurality of stacked steel plates (11) together, a winding (120) wound around the main leg (111), two covers (130) each connected to each of opposite end faces of the iron core (110) in a direction in which the steel plates (11) are stacked, each of the covers surrounding the periphery of the winding (120) together with the iron core (110) and storing insulating oil in which the winding (120) is immersed, and each of the covers having an opening (130h) serving as a flow path for the insulating oil, and a pump (170) connected to the openings (130h) to circulate the insulating oil to flow from the opening (130h) in one of the covers (130) and through two windows each surrounded by the main leg (111), each of the side legs and one pair of the connections toward the opening (130h) in the other cover (130).
摘要翻译：提供了一种铁心（110），其包括主腿部（111），与主腿部（111）平行并且相对于主腿部（111）彼此相对定位的两个侧腿，以及两对连接件与主腿（111）正交的方向并将主腿（111）的相对端分别连接到侧腿的相对端，铁芯通过连接多个堆叠的钢板（11）而形成为一体，一起缠绕在主支腿（111）周围的绕组（120），两个盖板（130），每个盖板（130）沿着钢板（11）的堆叠方向与铁芯（110）的每个相对的端面相连，围绕绕组（120）的周边的每个盖子与铁芯（110）一起存储并且存储绝缘油，其中绕组（120）被浸入其中，并且每个盖具有用作流动的开口（130h）用于绝缘油的路径，以及连接到开口（130h）以使绝缘体循环的泵（170）油从所述盖（130）中的一个中的所述开口（130h）流动并且穿过两个窗口，每个窗口被所述主支腿（111）围绕，所述侧支腿中的每一个和所述一对连接朝向所述开口（130h）其他盖（130）。

10. 发明公开

EP3097572A1 SITE REPLACEMENT OF INTERNAL SATURABLE REACTORS OF A RECTIFIER POWER TRANSFORMER 审中-公开
标题翻译： LOCATION替代内部饱和电抗整流电源变压器
公开(公告)号：EP3097572A1
公开(公告)日：2016-11-30
申请号：EP15740235.5
申请日：2015-01-12
申请人： ABB Inc.
发明人： TENYENHUIS, Ed G.
IPC分类号： H01F41/00 , H01F27/06 , H02B3/00 , H02B7/00 , H01F27/12
CPC分类号： H01F27/004 , H01F27/12
摘要： A method replaces a saturable core reactor (SCRs) in a rectifier power transformer disposed in a transformer vault at its field location. The transformer has an oil-filled tank housing the SCRs. The tank has a manhole opening therein. A busbar structure is associated with each SCR. The method drains the oil from the tank. A busbar structure is disconnected from an associated SCR. The disconnected busbar structure is moved away from the transformer. The SCR is removed from the tank through the manhole opening and is lowered. The SCR is then conveyed from the transformer vault. A replacement SCR is moved to be adjacent the manhole opening and is then slid through the manhole opening and into the tank to a certain location. The busbar structure is moved so as to be associated with a replacement SCR and is connected to the replacement SCR.

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