公开(公告)号：US11205911B2

公开(公告)日：2021-12-21

申请号：US16765759

申请日：2018-11-15

Applicant: LS ELECTRIC CO., LTD.

Inventor： Sung-Ha Won

IPC: H02J7/00 ,  H02J9/06 ,  H02J3/32

Abstract: The present invention relates to an energy storage system. An energy storage system, according to an embodiment of the present invention, relates to an energy storage system for managing power of a system and a direct current (DC) distribution network linked with the system, the energy storage system comprising: a first converter connected between the system and the DC distribution network so as to control a voltage of the DC distribution network; a second converter connected to the DC distribution network; a load connected to the second converter, and controlling the voltage by means of the second converter; a battery connected to the DC distribution network; and a third converter connected between the battery and the load, and controlling discharge of the battery.

公开(公告)号：USD936023S1

公开(公告)日：2021-11-16

申请号：US29741477

申请日：2020-07-13

Applicant: LS ELECTRIC CO., LTD.

Designer： Minho Choi

公开(公告)号：US20210351591A1

公开(公告)日：2021-11-11

申请号：US17266832

申请日：2019-07-24

Applicant: LS ELECTRIC CO., LTD.

Inventor： Ju Ho LIM

IPC: H02J3/38 ,  H02S50/00 ,  H02S40/38 ,  H02J7/35

Abstract: A photovoltaic system and a control method therefor are disclosed. A photovoltaic system according to an embodiment of the present disclosure comprises: a solar cell array for converting solar energy into electric power; a power management device for monitoring the power generation amount of the solar cell array and the reverse power from an external power grid; an energy storage device charged by receiving the electric power produced by the solar cell array or the power of the external power grid; and a power control device for supplying, to the energy storage device, the electric power generated by the solar cell array or the power of the external power grid in response to a valid power command, wherein the power management device generates the valid power command which has different values according to whether the reverse power is generated by the external power grid.

公开(公告)号：US20210328454A1

公开(公告)日：2021-10-21

申请号：US17275559

申请日：2019-09-03

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jiheon LEE ,  Younggeun KIM ,  Heejung KIM ,  Ilhyung LIM

IPC: H02J9/06

Abstract: The present specification relates to a power supply device and a power supply system capable of supplying uninterruptible power, and to a power supply device and a power supply system, which comprise a breaker for controlling a connection in a power bus to which a plurality of power supply devices are connected, and thus the breaker is opened and closed according to various situations occurring in the system so as to control power demand and supply, and thus a UPS function can be performed between the plurality of power supply devices.

公开(公告)号：US20210288519A1

公开(公告)日：2021-09-16

申请号：US17275936

申请日：2019-09-03

Applicant: LS ELECTRIC CO., LTD.

Inventor： Dohyun KIM ,  Dongjin YUN ,  Minjun PARK

IPC: H02J9/06 ,  H02J13/00 ,  H02M1/00

Abstract: The present specification relates to a power supply system which enables uninterruptible power supply, wherein a circuit breaker is provided to switch on/off each of electric circuits via which a plurality of power supply devices are connected, and thus the UPS function can be performed among the plurality of power supply devices by opening or closing the circuit breaker according to various situations occurring in the system to control power reception and supply.

公开(公告)号：US20210160428A1

公开(公告)日：2021-05-27

申请号：US16857709

申请日：2020-04-24

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seungpil YANG

IPC: H04N5/232 ,  H04N5/225

Abstract: The present disclosure relates to a thermal image monitoring apparatus and a distributing panel having the same. According to the present disclosure, a rotation-vibration reduction unit and a horizontal vibration reduction unit can prevent relative sliding between a base and a bracket and between the bracket and a thermal image camera, and also reduce vibration in a rotating direction or one direction by virtue of contact with each other.

公开(公告)号：US20210142971A1

公开(公告)日：2021-05-13

申请号：US16857793

申请日：2020-04-24

Applicant: LS ELECTRIC CO., LTD.

Inventor： Seungpil YANG

IPC: H01H71/04 ,  H01H71/12 ,  H01H31/02 ,  H01H33/28

Abstract: Disclosed is an air circuit breaker including a safety cover. According to embodiments disclosed herein, a setting unit of an overcurrent trip relay exposed to the outside through an opening is covered by the safety cover, and thus manipulation of the setting unit is not allowed before opening the safety cover. Accordingly, an accident due to malfunction or manipulation of the overcurrent trip relay by an unauthorized person may be prevented.

公开(公告)号：US20210066940A1

公开(公告)日：2021-03-04

申请号：US16960204

申请日：2019-01-11

Applicant: LS ELECTRIC CO., LTD.

Inventor： Sang-Ki SHON

IPC: H02J7/00 ,  H02J7/35 ,  H02S40/32 ,  H02S40/38

Abstract: A photovoltaic apparatus according to an embodiment of the present invention may comprise: a photovoltaic cell array for generating electricity by using solar energy; a battery energy storage system for charging electric energy supplied from the photovoltaic cell array and discharging the charged electric energy to a system; and a processor for controlling a generated power amount to be supplied to the system on the basis of the generated power amount of the photovoltaic cell array and power consumption of the photovoltaic apparatus.

公开(公告)号：US20210020397A1

公开(公告)日：2021-01-21

申请号：US17060923

申请日：2020-10-01

Applicant: LS Electric Co., LTD.

Inventor： Kihwan OH ,  Kyunghwan OH ,  Younghwan KIM

IPC: H01H73/18 ,  H01H33/08 ,  H01H71/10 ,  H01H9/36

Abstract: The present disclosure relates to an arc extinguishing unit of a molded case circuit breaker with a barrier provided between a fixed contact and a movable contact when a circuit is cut off, including fixed contacts fixed to part of a base assembly case; movable contacts that come contact or are separated from the fixed contacts; and an arc extinguishing part that extinguishes an arc generated when the movable contacts are separated from the fixed contacts. The arc extinguishing part includes a pair of side plates; multiple grids installed at a fixed interval between the pair of side plates; and arc barriers each installed on a base assembly case in a slidable manner, and configured to be in an open state of being separated from the movable contacts when a normal current flows on the circuit or is cutoff, and to close when a fault current is cutoff.

公开(公告)号：USD1074625S1

公开(公告)日：2025-05-13

申请号：US35521820

申请日：2024-07-01

Applicant: LS ELECTRIC CO., LTD.

Designer： Minho Choi