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    PHOTOVOLTAIC CONVERTER AND PHOTOVOLTAIC POWER GENERATION SYSTEM
    3.
    发明公开
    PHOTOVOLTAIC CONVERTER AND PHOTOVOLTAIC POWER GENERATION SYSTEM 审中-实审

    公开(公告)号：EP4398481A1

    公开(公告)日：2024-07-10

    申请号：EP23829997.8

    申请日：2023-06-16

    申请人： Huawei Digital Power Technologies Co., Ltd.

    发明人： TANG, Yunyu ,  ZHANG, Yaojia ,  SHI, Lei ,  LIU, Chao

    IPC分类号： H02S40/30 ,  H02S40/32 ,  H02S50/00 ,  G01R19/00 ,  G01R15/18 ,  H01F38/30

    摘要： This application provides a photovoltaic converter and a photovoltaic generation system. The photovoltaic converter is configured to electrically connect to a first photovoltaic module and a second photovoltaic module, where the first photovoltaic module includes a first positive electrode output end and a first negative electrode output end, and the second photovoltaic module includes a second positive electrode output end and a second negative electrode output end. The photovoltaic converter includes a current transformer and a power conversion circuit. The current transformer includes a magnetic structure, a first positive primary side winding, a second positive primary side winding, a negative primary side winding, and a first secondary side winding. The three primary side windings all pass through the magnetic structure and are spaced from each other. One end part of one of the two positive primary side windings and one end part of the other positive primary side winding are respectively electrically connected to the first positive electrode output end and the second positive electrode output end, and the other end part of each of the two positive primary side windings is electrically connected to the power conversion circuit. One end part of the negative primary side winding is electrically connected to the two negative electrode output ends, and the other end part thereof is electrically connected to the power conversion circuit. The first secondary side winding is wound around the magnetic structure. This reduces an occupied board area.

    CURRENT TRANSFORMER MODULE
    8.
    发明公开
    CURRENT TRANSFORMER MODULE 审中-公开

    公开(公告)号：EP4102525A1

    公开(公告)日：2022-12-14

    申请号：EP21751477.7

    申请日：2021-01-27

    申请人： SHT Corporation Limited

    发明人： IMAZATO, Yuichi ,  KASATANI, Kazuhiro ,  MORI, Kazusa

    IPC分类号： H01F38/30 ,  H01F27/02 ,  H01F27/28 ,  H01F27/30 ,  H02M7/48

    摘要： The present invention provides a current transformer module that can prevent the primary coil from being lifted or dropped and prevent the bobbin from being cracked when the primary coil is inserted into the bobbin. The current transformer module 12 of the present invention comprises a current transformer 10 including a resin-made bobbin 20 and a core 50 mounted on the bobbin, wherein the bobbin has a U-shaped primary coil 30 disposed in a primary coil through-hole 40 and a wire-wound secondary coil 27, and a casing 80 for housing the current transformer, wherein the primary coil is a U-shaped pin having a pair of legs 32, 32 and a U-shaped bent portion 31 for connecting the legs, and the casing has a concaved contact area 82 positioned opposite the U-shaped bent portion of the primary coil to prevent the primary coil from falling out.

    A DRY HIGH VOLTAGE INSTRUMENT TRANSFORMER
    9.
    发明公开
    A DRY HIGH VOLTAGE INSTRUMENT TRANSFORMER 审中-公开

    公开(公告)号：EP4099350A1

    公开(公告)日：2022-12-07

    申请号：EP21176971.6

    申请日：2021-05-31

    申请人： ABB Schweiz AG

    发明人： Banaszczyk, Jedrzej ,  Adamczyk, Bartlomiej ,  Rzepecki, Michal ,  Wysocki, Wojciech

    IPC分类号： H01F38/30 ,  H01F38/26 ,  H01F27/32 ,  H01F27/02 ,  H01B3/47

    摘要： A dry high voltage instrument transformer in the form of a HV current transformer (100) comprising a core casing (101) provided with a secondary winding (106), a top housing (102), a primary winding (103), and a dry bushing (104), wherein the core casing (101) comprises an insulation (105) for its electrical insulation from the primary winding (103) and from the top housing (102), characterized in that the insulation (105) comprises an insulating composite containing an electrically insulating material made of PES nonwoven impregnated and cured with low viscosity epoxy.
    The second object of the invention is a dry high voltage instrument transformer in the form of a HV voltage transformer (200) comprising a bottom tank housing (209), a cast of a primary winding module (201) with an embedded screen (202) surrounding the primary winding (203), a field grading disc (208), and a core (210), characterized in that-the cast of the primary winding module (201) is made of an insulating composite (205) containing an electrically insulating material made of PES nonwoven impregnated and cured with low viscosity epoxy.

    HIGH-VOLTAGE COLUMN CURRENT TRANSFORMER
    10.
    发明公开
    HIGH-VOLTAGE COLUMN CURRENT TRANSFORMER 审中-公开

    公开(公告)号：EP4060696A1

    公开(公告)日：2022-09-21

    申请号：EP21163269.0

    申请日：2021-03-17

    申请人： Hitachi Energy Switzerland AG

    发明人： SOLOVYEV, Yury ,  HJORTSTAM, Olof ,  GIRLANDA, Orlando ,  AREVALO, Liliana

    IPC分类号： H01F38/30 ,  H01F27/36 ,  H01F27/32 ,  G01R15/18 ,  G01R15/14

    摘要： The invention relates to a high-voltage column current transformer (1) comprising a column insulating body (3) and a head (2) arranged thereon, whereby the head (2) defines a volume (6) and comprises arranged therein a primary winding conductor (7), a secondary winding core assembly (5) having secondary winding leads (4) and a conical insulator spacer (9) having a base (10) and an apex (11) with a lateral face (12) therebetween, the conical insulator spacer (9) is arranged with its base (10) on a bottom of the head (2) facing the column insulating body (3) and its apex (11) holds the secondary winding core assembly (5) distant from the head (2), and the conical insulator spacer (9) comprises at least one electrode (13) embedded in the base (10) and/or the apex (11), and/or the conical insulator spacer (9) comprises at least one opening (15) in the lateral face (12).