ON-LOAD POWER ELECTRONIC TAP-CHANGER WITH POWER ELECTRONIC VALVES

    公开(公告)号:EP3382869A1

    公开(公告)日:2018-10-03

    申请号:EP17460018.9

    申请日:2017-03-31

    Applicant: ABB Schweiz AG

    CPC classification number: H02M1/092 H02M1/096 H02M5/12

    Abstract: The subject of the invention is an on-load power electronic tap changer with passive power electronic valves, having application in power or distribution transformers. The on-load power electronic tap changer comprises a control module (7) and a power electronic tap-changer module (1), which comprises a plurality of power electronic valves (V1... Vn). Each of the power electronic valve (V1... Vn) is connected with the control module (7) by an optical connector (C1... Cn) and comprises a main valve module (8) for current conduction between a first and second terminal. The first terminal is connected to a voltage source and the second terminal is connected to a transformer tap. Every single power electronic valve (V1... Vn) of the on-load power electronic tap changer is galvanically isolated from the control module (7) by optical connections (C1... Cn). The power electronic valve (V1... Vn) is adapted for triggering the main valve module (8) through the optical connector (C1... Cn) by a triggering circuit (9). The triggering circuit (9) is powered from voltage between the first and the second terminal. The power electronic valve (V1... Vn) can be also adapted for triggering the main valve module (8) directly through the optical connector (C1... Cn).

    A PRIMARY COIL AND A METHOD FOR MANUFACTURING A PRIMARY COIL

    公开(公告)号:EP3968345A1

    公开(公告)日:2022-03-16

    申请号:EP20195646.3

    申请日:2020-09-11

    Applicant: ABB Schweiz AG

    Abstract: The present invention relates to a primary coil suitable to use in a transformer and a method for manufacturing a primary coil suitable to use in a transformer.
    A primary coil suitable to use in a transformer comprising a primary winding bobbin (4) on which a layer of a primary winding (5) and at least one layer, preferably a fixed number of 1 to 3 layers, of an interlayer insulation material are wound alternately, wherein the interlayer insulation material and the primary winding (5) are impregnated with an epoxy (11), wherein the interlayer insulation material is a nonwoven material or a crepe paper.

    CONDUCTIVE SCREEN FOR POWER ELECTRONIC ELEMENTS ENCLOSED IN AN INSULATING MEDIUM
    7.
    发明公开
    CONDUCTIVE SCREEN FOR POWER ELECTRONIC ELEMENTS ENCLOSED IN AN INSULATING MEDIUM 审中-公开
    用于绝缘介质中电力电子元件的导电屏

    公开(公告)号:EP3306625A1

    公开(公告)日:2018-04-11

    申请号:EP16460075.1

    申请日:2016-10-05

    Applicant: ABB Schweiz AG

    CPC classification number: H01F27/362 G05F1/20 H01F29/02 H01L23/34 H01L23/60

    Abstract: The subject of the invention is a conductive screen for power electronic elements enclosed in insulating medium and working on high voltage potential having an application in energetic industry, specially designed for HV transformer. Conductive is characterized in that the power electronic element (1) is electrically connected with a heat radiator (8) having an external surface (8a) and a first conductive screen (10) is placed on the surface (8a) of the radiator (8). The first conductive screen is electrically connected with high voltage potential derived through a HV terminal (3). The conductive screen is adapted for shaping an electric field distribution between the potential of the screen (10) and a ground potential of the housing (5) filled-in with the insulating medium (6). The screen (10) is attached to the flat surface (8a) of the heat radiator (8) in such a way that the sharp edges of the radiator (8) and the power electronic device (1) are encircled by the screen (10) and a second conductive screen (10') is placed in the insulating medium (6) and the second screen (10') is electrically connected with the first screen (10).

    Abstract translation: 本发明的主题是一种用于功率电子元件的导电屏,该功率电子元件封装在绝缘介质中并且工作在高压电势下,在高能工业中应用,特别为高压变压器设计。 导电的特征在于,功率电子元件(1)与具有外表面(8a)的散热器(8)电连接,并且第一导电屏(10)放置在散热器(8)的表面(8a)上 )。 第一导电屏与通过HV端子(3)导出的高电压电位电连接。 导电屏适合于整形屏幕(10)的电势和用绝缘介质(6)填充的壳体(5)的地电势之间的电场分布。 屏幕(10)以散热器(8)和功率电子设备(1)的锐利边缘被屏幕(10)包围的方式附接到散热器(8)的平坦表面(8a) )并且第二导电屏(10')放置在绝缘介质(6)中并且第二屏(10')与第一屏(10)电连接。

    SPLIT-CORE COUPLER FOR INDUCTIVE POWER TRANSFER

    公开(公告)号:EP3709315A1

    公开(公告)日:2020-09-16

    申请号:EP19163049.0

    申请日:2019-03-15

    Applicant: ABB Schweiz AG

    Abstract: The subject of the invention is a split-core coupler for inductive power transfer, and more specially the invention relates to the split-core coupler used in wireless charging system in which the supply and receiving side are separated by some insulating gap having a specially designated thickness ensuring relatively large value of the coupling coefficient and, at the same time, enabling for movement of a transmitter relatively to a receiver or vice versa in an improved way. The invention is characterized in that the two parts (A) and part (B) of the split-core transformer are movable connected together during the matching and also during a charging process. The second core column (4) which is placed between the yokes (1) has at least three degrees of freedom in horizontal, vertical and torsional directions or combinations of all these directions during the charging process when the magnetic circuit of the split-core coupler is closed.

    A CATENARY LINE TEST DEVICE FOR A MAIN CIRCUIT BREAKER OF AN AC CATENARY LINE SYSTEM
    10.
    发明公开
    A CATENARY LINE TEST DEVICE FOR A MAIN CIRCUIT BREAKER OF AN AC CATENARY LINE SYSTEM 审中-公开
    一种用于交流线路系统的主电路断路器的线路测试装置

    公开(公告)号:EP3301460A1

    公开(公告)日:2018-04-04

    申请号:EP16460073.6

    申请日:2016-09-30

    Applicant: ABB Schweiz AG

    Abstract: The subject of the invention is a catenary line test device (7) for a main circuit breaker (6) of an AC catenary line system (1). The invention is used for detection of short circuit in AC catenary line system (1) prior to closing, the main circuit breaker (6). The catenary line system (1) is powered by through connecting terminals first (4) and second (5) and the main circuit breaker (6) is connected to the overhead line (2) and a load (8) is connected between the overhead line (2) and a return grounding line (3). The catenary line test device (7) is adapted to prevent of closing the main circuit breaker (6) on short-circuited overhead line (2), and the test device (7) comprises a capacitor circuit (103) and an impulse generator circuit (104) connected in series. To the capacitor circuit (103) a measuring and control circuit (105) is connected for providing a half period of an electrical impulse generated in the impulse generator circuit (104), causes the flow of the supply current into the catenary line system (1) through the first connecting terminal (4).

    Abstract translation: 本发明的主题是用于AC悬链线系统(1)的主电路断路器(6)的悬链线测试设备(7)。 本发明用于检​​测交流悬链线系统(1)在闭合之前的短路,主断路器(6)。 该悬链线系统(1)由第一(4)和第二(5)连接端子供电,主断路器(6)连接到架空线(2),负载(8)连接在架空 线(2)和返回接地线(3)。 所述悬链线测试装置(7)适于防止短路架空线(2)上的主断路器(6)闭合,所述测试装置(7)包括电容器电路(103)和脉冲发生器电路 (104)串联连接。 测量和控制电路(105)连接到电容器电路(103),用于提供在脉冲发生器电路(104)中产生的电脉冲的半个周期,使电源电流流入悬链线系统(1 )通过第一连接端子(4)。

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