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    INVERTER DEVICE
    253.
    发明公开
    INVERTER DEVICE 审中-公开

    公开(公告)号：US20240164041A1

    公开(公告)日：2024-05-16

    申请号：US18282931

    申请日：2021-11-25

    Applicant: LS ELECTRIC CO., LTD.

    Inventor： Tae Suk BAE ,  Dong Sik KIM ,  Chun Suk YANG

    IPC: H05K7/14 ,  H02M7/00

    CPC classification number: H05K7/14324 ,  H02M7/003 ,  H05K7/14322

    Abstract: An inverter device is provided. The inverter device according to an embodiment of the present disclosure may include: a main body housing in which an optional module is detachably installed and a first circuit module is disposed inside, and the inverter device may include an optional module installation portion; an opening portion formed in the optional module installation portion; and a connection member insertion portion disposed in the opening portion.

    ARC EXTINGUISHING UNIT, INTERRUPTION UNIT, AND AIR CIRCUIT BREAKER COMPRISING SAME
    254.
    发明公开
    ARC EXTINGUISHING UNIT, INTERRUPTION UNIT, AND AIR CIRCUIT BREAKER COMPRISING SAME 审中-公开

    公开(公告)号：US20240153728A1

    公开(公告)日：2024-05-09

    申请号：US18282042

    申请日：2022-04-29

    Applicant: LS ELECTRIC CO., LTD.

    Inventor： Kyu Ho LEE ,  Il Hyun KIM

    IPC: H01H73/18 ,  H01H33/08 ,  H01H73/04

    CPC classification number: H01H73/18 ,  H01H33/08 ,  H01H73/04

    Abstract: Disclosed are an arc extinguishing unit, a circuit breaking unit, and an air circuit breaker including the same. The present disclosure provides an arc extinguishing unit, a circuit breaking unit, and an air circuit breaker, including: side plates spaced apart from each other and disposed to face each other; a plurality of grids disposed between the side plates, spaced apart from each other, and coupled to the side plates, respectively; and a grid cover located above the grid and covering the grid, wherein the grid includes a grid leg extending downward to surround from both sides a protruding contact disposed to extend upward from a movable contact; and a first protective part formed to surround at least a portion of the grid leg at a lower portion of the grid leg.

    ARC PATH FORMING UNIT AND DIRECT CURRENT RELAY COMPRISING SAME
    255.
    发明公开
    ARC PATH FORMING UNIT AND DIRECT CURRENT RELAY COMPRISING SAME 审中-公开

    公开(公告)号：US20240145196A1

    公开(公告)日：2024-05-02

    申请号：US18405176

    申请日：2024-01-05

    Applicant: LS ELECTRIC CO., LTD.

    Inventor： Jungwoo YOO

    IPC: H01H50/38 ,  H01H50/02 ,  H01H50/54

    CPC classification number: H01H50/38 ,  H01H50/02 ,  H01H50/54

    Abstract: An arc path forming unit and a direct current relay are disclosed. An arc path forming unit according to an embodiment of the present disclosure comprises: a magnet frame extending in a longitudinal direction; and a plurality of main magnet units disposed in the width direction of the magnet frame. The surfaces, which face each other, of the main magnet units have the same polarity. Therefore, magnetic fields that repel each other are generated in a space between the respective main magnet units. An electromagnetic force in the direction oriented toward the outside of the arc path forming unit is formed by means of the magnetic fields. Thus, a generated arc can move in the direction of the electromagnetic force so as to be stably extinguished. As a result, various members positioned in the center of the direct current relay are prevented from being damaged by the arc.

    Static transfer switch, and ups module to which static transfer switch is applied
    256.
    发明授权
    Static transfer switch, and ups module to which static transfer switch is applied 有权

    公开(公告)号：US11967858B2

    公开(公告)日：2024-04-23

    申请号：US17772632

    申请日：2020-03-18

    Applicant: LS ELECTRIC CO., LTD.

    Inventor： Jiheon Lee ,  Dongjin Yun ,  Dohyun Kim ,  Jihong Kim ,  Minjun Park ,  Wonseok Do

    IPC: H02J9/06 ,  H01H9/54 ,  H02M1/00 ,  H02M7/145

    CPC classification number: H02J9/061 ,  H01H9/542 ,  H02J9/062 ,  H02J9/068 ,  H02M1/0067 ,  H02M7/145

    Abstract: The present disclosure relates to an uninterruptible power supply (UPS) system and, more specifically, to a static transfer switch (STS) that can be applied to a UPS module, the static transfer switch comprising: one semiconductor rectifying element connected to either the anode terminal or the cathode terminal of a direct current power source; a bypass circuit for connecting the input terminal and the output terminal of the semiconductor rectifying element so as to bypass the semiconductor rectifying element; a breaker for opening or closing the bypass circuit; and a switch including a control unit, which controls the semiconductor rectifying element so as to conduct current when a preset conduction signal is received, controls the breaker so as to close the bypass circuit, and, when the bypass circuit is closed by the breaker, controls the semiconductor rectifying element so as to stop the conduction of current.

    MULTI-LEVEL CONVERTER-TYPE STATCOM SYSTEM AND OPERATION METHOD
    257.
    发明公开
    MULTI-LEVEL CONVERTER-TYPE STATCOM SYSTEM AND OPERATION METHOD 审中-公开

    公开(公告)号：US20240106236A1

    公开(公告)日：2024-03-28

    申请号：US18273703

    申请日：2022-01-14

    Applicant: LS ELECTRIC CO., LTD.

    Inventor： Jin Hee LEE

    IPC: H02J3/18 ,  H02M7/483

    CPC classification number: H02J3/1857 ,  H02M7/483

    Abstract: A system including a multi-level converter including a plurality of valve sections including a plurality of sub modules, a plurality of VCU controllers connected to each of the plurality of valve sections, and an upper controller connected to the plurality of VCU controllers, wherein the VCU controller is configured to receive status information from each of the plurality of sub modules to transmit the state information to the upper controller, receive a specific sub module control command information from the upper controller, and transmit the control command information to a specific sub module among the plurality of sub modules.

    Motion sensing device for vacuum circuit breaker and vacuum circuit breaker comprising same
    258.
    发明授权
    Motion sensing device for vacuum circuit breaker and vacuum circuit breaker comprising same 有权

    公开(公告)号：US11942291B2

    公开(公告)日：2024-03-26

    申请号：US17602151

    申请日：2020-03-09

    Applicant: LS ELECTRIC CO., LTD.

    Inventor： Yong-Jin Choi

    IPC: H01H33/662 ,  H01H33/664 ,  H01H33/666

    CPC classification number: H01H33/664 ,  H01H33/662 ,  H01H33/6664

    Abstract: The present disclosure relates to a motion sensing device for a vacuum circuit breaker and a vacuum circuit breaker comprising same. In the present disclosure, the motion sensing device for a vacuum circuit breaker is provided with a push rod assembly coupled to a movable electrode of a vacuum interrupter to elevate or lower the movable electrode, wherein the motion sensing device comprises: a sensor module spaced apart from the push rod assembly and arranged to face a side of a rod housing; and a sensing unit installed on a side of the push rod assembly and arranged to face the sensor module that senses the movement of the sensing unit.

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