公开(公告)号：US20150332884A1

公开(公告)日：2015-11-19

申请号：US14666021

申请日：2015-03-23

申请人： LSIS CO., LTD.

发明人： Gyeong Ho LEE ,  Jung Wook SIM ,  Hae Yong PARK

IPC分类号： H01H83/02

CPC分类号： H01H83/02 ,  H01H33/167 ,  H01H33/66 ,  H01H71/2409

摘要： The fast switch includes: a housing; a vacuum interrupter installed in the housing, connected to a main circuit, and configured to open and close the main circuit; a contact spring coupled to a mover of the vacuum interrupter, and configured to provide a contact force; an insulating rod connected to the contact spring; a permanent magnet actuator connected to a lower end of the insulating rod, and configured to provide a switching driving force; a first capacitor configured to provide a discharge current to a coil of the permanent magnet actuator; a driving coil connected to a lower end of the permanent magnet actuator; and a second capacitor configured to provide a discharge current to the driving coil.

摘要翻译： 快速开关包括：一个外壳; 安装在壳体中的真空断路器，连接到主电路，并且被构造成打开和关闭主电路; 耦合到所述真空断续器的动子的接触弹簧，并且被配置为提供接触力; 连接到接触弹簧的绝缘杆; 连接到所述绝缘杆的下端的永久磁铁致动器，构造成提供切换驱动力; 第一电容器，被配置为向永磁体致动器的线圈提供放电电流; 连接到永磁体致动器的下端的驱动线圈; 以及构造成向驱动线圈提供放电电流的第二电容器。

公开(公告)号：US20150138683A1

公开(公告)日：2015-05-21

申请号：US14528949

申请日：2014-10-30

申请人： LSIS CO., LTD.

发明人： Jung Wook SIM ,  Gyeong Ho LEE ,  Hae Yong PARK

IPC分类号： H02H9/02

CPC分类号： H02H9/02 ,  H01H9/54 ,  H01H33/02 ,  H02H3/025 ,  H02H3/08 ,  H02H9/026

摘要： A fault current limiter is provided. According to an embodiment of the present disclosure, the fault current limiter includes a switch whose contact point is opened when a fault current occurs; a current limiting element configured to limit the fault current when the fault current occurs; and a diode being serial-connected to the current limiting element, wherein a breakdown voltage of the diode is higher than a voltage drop by an impedance of the switch when a normal current flows.

摘要翻译： 提供故障电流限制器。 根据本公开的实施例，故障限流器包括开关，其在故障电流发生时接触点断开; 限流元件，用于限制故障电流发生时的故障电流; 以及串联连接到限流元件的二极管，其中当正常电流流动时，二极管的击穿电压高于开关阻抗的电压降。

公开(公告)号：US20160018457A1

公开(公告)日：2016-01-21

申请号：US14793439

申请日：2015-07-07

申请人： LSIS CO., LTD.

发明人： Hae Yong PARK ,  Jung Wook SIM ,  Gyeong Ho LEE

IPC分类号： G01R31/02 ,  G01R19/165

CPC分类号： G01R31/027 ,  G01R19/165 ,  H02H3/105

摘要： A fault current detection circuit according to the invention comprises a primary current transformer that detects a current; a pair of secondary current transformers that convert a current detection signal into secondary conversion signals with a small current; a fault detection circuit section that determines whether or not a fault current occurs by comparing a current value according to a secondary conversion signal with a predetermined reference current value; a surge detection circuit section that determines whether or not a surge current occurs on the electric power circuit; and a trip determination unit that receives a fault detection signal and a surge detection signal, and generates a trip control signal when at least either one of the fault detection signal and the surge detection signal is received.

摘要翻译： 根据本发明的故障电流检测电路包括检测电流的初级电流互感器; 一对二次电流互感器，其将电流检测信号转换成具有小电流的二次转换信号; 故障检测电路部，其通过将根据二次转换信号的电流值与规定的基准电流值进行比较来判断是否发生故障电流; 浪涌检测电路部，判定电力电路是否发生浪涌电流; 以及行程确定单元，其接收故障检测信号和浪涌检测信号，并且当接收到故障检测信号和浪涌检测信号中的至少一个时产生跳闸控制信号。

公开(公告)号：US20140118001A1

公开(公告)日：2014-05-01

申请号：US14051269

申请日：2013-10-10

申请人： LSIS CO., LTD.

发明人： Seung Hyun BANG ,  Hae Yong PARK ,  Gyeong Ho LEE ,  Jung Wook SIM ,  Won Joon CHOE ,  Min Jee KIM

IPC分类号： G01R19/00

CPC分类号： H02H3/44 ,  H02H3/093 ,  H02H9/02

摘要： The fault current detecting circuit includes: a current detection unit that outputs a current detection signal; a first comparing circuit unit that compares the current detection signal with a predetermined reference current value and outputs a first output signal; a differentiator that differentiates the current detection signal to output a change slope of the current detection signal; a second comparing circuit unit that compares the change slope with a predetermined reference change slope value and outputs a second output signal; a third comparing circuit unit that compares the current detection signal with a predetermined current detection limit reference value and output a third output signal; and a trip determining unit that outputs a trip control signal only when the first output signal and the second output signal are maintained to be received and the third output signal is not received.

摘要翻译： 故障电流检测电路包括：电流检测单元，其输出电流检测信号; 第一比较电路单元，将电流检测信号与规定的基准电流值进行比较，并输出第一输出信号; 微分器，其区分电流检测信号以输出电流检测信号的变化斜率; 第二比较电路单元，其将所述变化斜率与预定的基准变化斜率值进行比较，并输出第二输出信号; 第三比较电路单元，其将所述电流检测信号与预定电流检测限参考值进行比较，并输出第三输出信号; 以及跳闸确定单元，仅在第一输出信号和第二输出信号保持被接收并且没有接收到第三输出信号时输出跳闸控制信号。