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    • 53. 发明公开
    • 초고압 차단기용 스프링 조작기구
    • KR20180071086A
    • 2018-06-27
    • KR20160173880
    • 2016-12-19
    • LSIS CO LTD
    • CUI MINGKIM KYOUN WOO
    • H01H33/42H01H33/02H01H33/53H02B13/035
    • 본발명은초고압차단기용스프링조작기구에관한것으로, 보다상세하게는댐핑장치의반발력을조절하여차단성능을최적화할수 있는초고압차단기용스프링조작기구에관한것이다. 본발명의일 실시예에따른초고압차단기용스프링조작기구는개폐장치의일측에설치되는케이스; 상기케이스의내부에삽입되고, 일단부에는플랜지가마련되어상기케이스의일단에고정결합되는하우징; 상기케이스와하우징사이에구비되고, 일단이상기플랜지에지지되는개방스프링; 상기하우징의내부에고정설치되고, 내부에작동홈및 피스톤홀이형성되는실린더; 상기피스톤홀에슬라이딩가능하게설치되는피스톤;을포함하고, 상기실린더에서상기작동홈이형성된부분에는축 방향을따라일렬로배치되는복수개의홀을갖는오리피스세트가복수개 형성되고, 상기작동홈의내주면을따라설치되고, 상기오리피스세트중에서어느하나가개방되도록하는슬리브;를더 포함하는것을특징으로한다.
    • 56. 发明公开
    • 태양광 인버터
    • 光伏逆变器
    • KR20180024169A
    • 2018-03-08
    • KR20160109839
    • 2016-08-29
    • LSIS CO LTD
    • KIM YOUNG MIN
    • H02S40/32H01L31/042H02S50/00
    • H02M1/14H02J1/02H02M7/4826H02M2001/0006H02S40/30Y02E10/16Y10T307/32Y10T307/707
    • 본발명은태양광인버터에관한것으로, 보다상세하게는 DC 링크커패시터에저장된직류전압의역전압을태양전지어레이에인가하여태양광발전효율저하를방지하는태양광인버터에관한것이다. 본발명의일 실시예에따른태양광인버터는태양전지어레이로부터출력되는직류전압을저장하는 DC 링크커패시터, 상기 DC 링크커패시터에저장된직류전압을이용하여교류전력을생성하고, 상기생성된교류전력을전력계통에전송하는전력변환부및 상기태양전지어레이의구동값이미리설정된구동조건을만족하는지여부에따라상기 DC 링크커패시터에저장된직류전압을상기전력변환부에인가하거나상기 DC 링크커패시터에저장된직류전압의역전압을상기태양전지어레이에인가하는제어부를포함하는것을특징으로한다.
    • 本文公开了通过将存储在DC链电容器中的DC电压的反向电压施加到太阳能电池阵列来防止光伏发电效率降低的光伏逆变器(100)。 该光伏逆变器包括:DC链路电容器,被配置为存储从太阳能电池阵列输出的DC电压; 电力转换级,其被配置为通过使用存储在所述DC链电容器中的所述DC电压来生成AC电力,以将所生成的AC电力发送到电力系统; 以及控制器,其被配置为将存储在DC链电容器中的DC电压施加到功率转换级,或者根据太阳能电池的驱动值是否将存储在DC链电容器中的DC电压的反向电压施加到太阳能电池阵列 阵列满足预定的驾驶条件。
    • 57. 发明授权
    • Extinguishing device of gas insulated circuit breaker
    • 气体绝缘断路器灭火装置
    • KR101158656B1
    • 2012-07-03
    • KR20100140688
    • 2010-12-31
    • LSIS CO LTD
    • KIM DUK RAE
    • H01H33/04H01H9/34
    • PURPOSE: An arc-extinguishing unit of a gas insulated circuit breaker is provided to prevent dielectric breakdown by partially discharging heated gas when a certain pressure is formed in a cooling room. CONSTITUTION: A fixed electrode part(100) includes a fixed electrode rod(120). A moving electrode part(200) faces the fixed electrode part. The moving electrode part includes a moving electrode rod(220). A pressure outlet includes a pressure discharging hole and a switching valve opening and closing the pressure discharging hole. The pressure discharging hole is included at least one of a fixed side supporting body(110) or a moving side supporting body(210).
    • 目的:提供一种气体绝缘断路器的灭弧装置,用于在冷却室内形成一定压力时,通过部分排放加热气体来防止电介质击穿。 构成:固定电极部件(100)包括固定电极棒(120)。 移动电极部分(200)面向固定电极部分。 移动电极部分包括移动电极棒(220)。 压力出口包括压力排出孔和打开和关闭压力排出孔的切换阀。 压力排出孔包括固定侧支撑体(110)或移动侧支撑体(210)中的至少一个。
    • 58. 发明公开
    • Apparatus for setting operation authority of a digital device in power distribution system
    • 用于设置电力分配系统中数字设备的操作权限的装置
    • KR20120067800A
    • 2012-06-26
    • KR20100129384
    • 2010-12-16
    • LSIS CO LTD
    • SEONG IN SEOK
    • H02B15/00G05B23/02H02J13/00
    • Y02E60/74Y04S10/30H02B1/24
    • PURPOSE: An apparatus for setting operation authority of a digital device in a power distribution system is provided to prevent accidents due to the operating a digital device. CONSTITUTION: An external signal input unit(100) comprises an input port(101) and a photo-coupler(103). The input port receives a signal switching a local/remote state of a digital device from the outside. A controller(110) sets the digital device to a local state from a remote state. A key input unit(120) and a display unit(130) performs a user interface function. The key input unit receives user instructions from a user. The display unit displays information on the device on a screen.
    • 目的:提供一种用于设置配电系统中的数字设备的操作权限的装置,以防止由于操作数字设备而引起的事故。 构成:外部信号输入单元(100)包括输入端口(101)和光耦合器(103)。 输入端口接收从外部切换数字设备的本地/远程状态的信号。 控制器(110)将数字设备从远程状态设置为本地状态。 键输入单元(120)和显示单元(130)执行用户界面功能。 密钥输入单元从用户接收用户指令。 显示单元在屏幕上显示设备上的信息。
    • 59. 发明公开
    • Current detection apparatus using sensor
    • 使用传感器的电流检测装置
    • KR20120067797A
    • 2012-06-26
    • KR20100129381
    • 2010-12-16
    • LSIS CO LTD
    • CHOE WON JOONPARK KWON BAE
    • G01R19/165
    • PURPOSE: A current detecting apparatus is provided to determine a trouble by detecting an abnormal current by using a Rogowskii coil sensor and a CT(current Transformer) sensor at the same time. CONSTITUTION: A CT sensor(101) detects a current flowing in a line. A Rogowskii sensor is closely located to the CT sensor and detects the current flowing through the CT sensor. A CT sensor output processing unit(120) rectifies and compares an output signal of the CT sensor. The CT sensor output processing unit outputs the comparison result to a logic gate unit. A Rogowskii sensor output processing unit(130) rectifies and compares an output signal of the Rogowskii sensor. The Rogowskii sensor output processing unit outputs the comparison result to the logic gate unit. A controller(140) turns on and off a disconnect switch according to an output signal of the logic gate unit.
    • 目的:提供一种电流检测装置,用于通过使用Rogowskii线圈传感器和CT(电流互感器)传感器同时检测异常电流来确定故障。 构成:CT传感器(101)检测线路中流动的电流。 Rogowskii传感器位于CT传感器上,并检测流过CT传感器的电流。 CT传感器输出处理单元(120)整流并比较CT传感器的输出信号。 CT传感器输出处理单元将比较结果输出到逻辑门单元。 Rogowskii传感器输出处理单元(130)对Rogowskii传感器的输出信号进行整流和比较。 Rogowskii传感器输出处理单元将比较结果输出到逻辑门单元。 控制器(140)根据逻辑门单元的输出信号打开和​​关闭断开开关。
    • 60. 发明公开
    • Motor control device and motor protection system including the device
    • 电机控制装置和包括装置的电动机保护系统
    • KR20120054194A
    • 2012-05-30
    • KR20100115451
    • 2010-11-19
    • LSIS CO LTD
    • SONG CHANG ICK
    • H02H7/08H02P7/20
    • H02H7/085G01R31/343H02H1/0007H02H3/04H02P29/00
    • PURPOSE: An apparatus for controlling a motor and a system for protecting the motor including the same are provided to generate an internal voltage having a constant voltage level by using a second source current which is made by transforming a first source current. CONSTITUTION: A motor protection system(100) comprises a first breaker(110), a current transformer(120), a second breaker(130), a transformer(140), and a motor controlling unit(150). The first breaker supplies a three phase current to a motor(160) or blocks the three phase current. The current transformer generates a second source current by transforming the first source current. The second breaker supplies the three phase current in response to a blocking control signal to the motor or blocks the three phase current. The transformer generates a power source voltage by using the first source current. The motor controlling unit generates internal power by using a negative current obtained by rectifying conversion currents. A motor protector comprises a current distribution and voltage generation unit(151), a current detecting unit(152), a controlling unit(153), a display unit(154), and an input unit(155).
    • 目的:提供一种用于控制电动机的装置和用于保护包括其的电动机的系统,以通过使用通过变换第一源电流而形成的第二源电流来产生具有恒定电压电平的内部电压。 构成:电动机保护系统(100)包括第一断路器(110),电流互感器(120),第二断路器(130),变压器(140)和电动机控制单元(150)。 第一个断路器向电动机(160)提供三相电流或者阻塞三相电流。 电流互感器通过转换第一源电流产生第二源电流。 第二个断路器响应于对电动机的阻塞控制信号而提供三相电流或阻塞三相电流。 变压器通过使用第一源电流产生电源电压。 电机控制单元通过使用通过整流转换电流获得的负电流来产生内部电力。 电动机保护器包括电流分配和电压产生单元(151),电流检测单元(152),控制单元(153),显示单元(154)和输入单元(155)。