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331.发明公开公开(公告)号：US20240184263A1
公开(公告)日：2024-06-06
申请号：US18284984
申请日：2022-03-16
Applicant: LS ELECTRIC CO., LTD.
Inventor： Geon YOON , Jung Girl LEE
IPC: G05B19/05
CPC classification number: G05B19/052 , G05B19/056 , G05B2219/1215
Abstract: The present disclosure relates to a method for managing a parameter of a communication-based master-slave control system, and has an effect of storing and applying parameters of all slave devices in a non-volatile memory in a master device, thereby enabling the slave devices to be set-up in a position where an operator is difficult to access or dangerous by a parameter stored in the master device, thereby simplifying maintenance of the slave devices and ensuring safety of a user.
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公开(公告)号：US12002638B2
公开(公告)日：2024-06-04
申请号：US17612059
申请日：2020-04-24
Applicant: LS ELECTRIC CO., LTD.
Inventor： Gyeongho Lee
IPC: H01H33/662 , H01H33/664 , H01H33/666
CPC classification number: H01H33/662 , H01H33/664 , H01H33/666
Abstract: The present disclosure relates to a bypass switch used in a super-high voltage direct current transmission sub-module including a case; a first bus bar; a second bus bar; a fixing contact provided in a hollow part and connected to the first bus bar; a movable contact provided in the hollow part, and connected to the second bus bar so as to come into contact with or be separated from the fixing contact; an insulating cover coupled to the rear surface of the second bus bar, and having an accommodation part therein; a movable part extension rod provided on the accommodation part and coupled to the movable contact; and an actuator provided on the rear part of the insulating cover, and providing power for moving the movable part extension rod.
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公开(公告)号：US20240178656A1
公开(公告)日：2024-05-30
申请号：US18284758
申请日：2022-02-14
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jungwook SIM , Dongjin YUN , Sunghee KANG , Woonghyeob SONG
CPC classification number: H02H7/18 , H02J7/00304 , H02J7/0031 , H02J7/0047 , H02J7/00712
Abstract: The present disclosure comprises: a solid-state circuit breaker, which is arranged between a battery system and a line and includes a semiconductor switch for providing an electrical connection or insulation between the battery system and the line according to the voltage applied to a gate terminal; an interrupter switch for providing a physical connection or separation between the solid-state circuit breaker and the line; and a rack battery management system which controls a gate driver applying the gate voltage, so as to provide insulation between the battery system and the line according to the result of sensing a current flowing between the battery system and the line, and which controls the interrupter switch to physically separate the solid-state circuit breaker from the line.
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公开(公告)号：US20240170239A1
公开(公告)日：2024-05-23
申请号：US18281727
申请日：2022-04-29
Applicant: LS ELECTRIC CO., LTD.
Inventor： Il Hyun KIM
IPC: H01H33/08
CPC classification number: H01H33/08
Abstract: Disclosed are an arc extinguishing unit and an air circuit breaker comprising the same. The present disclosure provides an arc extinguishing unit, 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 from both ends in the width direction so that an induced magnetic field can be formed by an arc generated when a fixed contact and a movable contact are spaced apart.
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公开(公告)号：US11990791B2
公开(公告)日：2024-05-21
申请号：US17274706
申请日：2019-09-03
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jiheon Lee , Younggeun Kim , Heejung Kim , Ilhyung Lim
Abstract: The present specification relates to a power supply device and a power supply system which enable uninterruptible power supply, wherein a circuit breaker is provided in a power bus to which a plurality of power supply devices are connected, so as to switch on/off the connected power supply devices, 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.
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Patent Agency Ranking
公开(公告)号：US20240164058A1
公开(公告)日：2024-05-16
申请号：US18281914
申请日：2022-02-14
Applicant: LS ELECTRIC CO., LTD.
Inventor： Ki Nam RYU
CPC classification number: H05K7/203 , H02H9/023 , H05K7/20309 , H05K7/20318 , H05K7/20381
Abstract: The present disclosure relates to a cooling apparatus for a superconducting fault current limiter, and may comprise a first container for accommodating a super-cooled liquid coolant into which a superconducting element is immersed, a second container disposed in contact with an outer surface of the first container to expose a lower side of a lateral surface of the first container, and for accommodating a saturated liquid coolant, and a freezer inserted into the second container to condense the vaporized saturated liquid coolant.
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公开(公告)号：US20240159830A1
公开(公告)日：2024-05-16
申请号：US18280744
申请日：2022-01-05
Applicant: LS ELECTRIC CO., LTD.
Inventor： Kihyeon KIM
CPC classification number: G01R31/327 , G01R1/30 , G01R15/181 , G01R19/15 , G01R19/18 , G01R33/02
Abstract: Disclosed is a test device. The test device according to an embodiment of the present invention is operated by a power supply unit provided to be portable, and tests a sensor device using an alternating current of a high frequency. Therefore, the portability and operation reliability of the test device are improved, and the convenience of use can be improved since a separate wire member or the like for the operation of the test device need not be provided.
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公开(公告)号：US11978604B2
公开(公告)日：2024-05-07
申请号：US17639061
申请日：2020-04-07
Applicant: LS ELECTRIC CO., LTD.
Inventor： Jinhee Park , Jungwoo Yoo
Abstract: Disclosed are an arc path forming unit and a direct current relay comprising same. The arc path forming unit according to an embodiment of the present disclosure comprises a single magnet unit disposed on one side of a magnet frame, and a plurality of magnet units disposed on another side opposite to the one side. The plurality of magnet units are sequentially arranged in the longitudinal direction. One side of a magnet unit positioned between at least two of the plurality of magnet units and facing the single magnet unit is magnetized with the same polarity as that of one side of the single magnet unit facing the magnet unit. As such, magnetic fields in the direction of exerting repulsive forces on each other are formed in the central portion of the direct current relay. Accordingly, since the arc does not move to the central portion, damage to components disposed in the central portion can be prevented.
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公开(公告)号：US20240120727A1
公开(公告)日：2024-04-11
申请号：US18285922
申请日：2022-04-01
Applicant: LS ELECTRIC CO., LTD.
Inventor： Sunghee KANG , Jungwook SIM , Woonghyeob SONG , Dongjin YUN , Chaeyoon BAE
Abstract: The present disclosure relates to a power device protection apparatus. A power device protection apparatus according to an embodiment of the present invention comprises: a comparator which is connected to a power device, and determines whether an overcurrent of the power device occurs; and a control unit which controls the comparator so as to change, by software, a overcurrent reference value for determining whether the overcurrent occurs, wherein the control unit receives temperature information of the power device, changes the overcurrent reference value on the basis of the temperature information, and performs the overcurrent reference value change according to the temperature information, on the basis of the characteristics of the power device.
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340.发明授权公开(公告)号：US11953553B2
公开(公告)日：2024-04-09
申请号：US17601535
申请日：2020-03-13
Applicant: LS ELECTRIC CO., LTD.
Inventor： Hyun-Wook Lee , Ju-Hyun Kim
IPC: G01R31/327 , G01N21/55 , H01H33/664
CPC classification number: G01R31/3275 , G01N21/55 , H01H33/664
Abstract: The present disclosure relates to a contact point monitoring device for a vacuum circuit breaker, and a correction method performed through same, wherein deviations due to temperature in a sensor for monitoring the amount of wear at a contact point may be compensated for. According to the present disclosure, the amount of wear at the contact point may be accurately detected by correcting a characteristic value of a photosensor according to operation temperature, by taking into consideration the temperature characteristics of the photosensor.
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