公开(公告)号：US09640984B2

公开(公告)日：2017-05-02

申请号：US14441918

申请日：2013-01-09

申请人： Shaogui Al ,  Chuan Wang ,  Yongning Huang ,  Yiping Fan ,  Guoyong Zhang ,  Yanjun Li ,  Ning Pan ,  Shuang Zhang

发明人： Shaogui Al ,  Chuan Wang ,  Yongning Huang ,  Yiping Fan ,  Guoyong Zhang ,  Yanjun Li ,  Ning Pan ,  Shuang Zhang

IPC分类号： H02H9/02

CPC分类号： H02H9/02 ,  H02H9/021

摘要： A current limiting device for a power grid includes a first current limiting reactor; a first smart fast switch connected with the first current limiting reactor in parallel; a current transformer sleeved on a bus bar located on one side of a circuit resulting from the parallel connection of the first current limiting reactor with the first smart fast switch to monitor the current in the bus bar in real time; and a controller connected with the current transformer to control the switch-off of the first smart fast switch when the current in the bus bar is higher than a first preset value and the switch-on of the first smart fast switch when the current in the bus bar is smaller than a second preset value, wherein the first preset value is higher than the second preset value. The current limiting device improves the operational reliability of a power grid.

公开(公告)号：US20150318688A1

公开(公告)日：2015-11-05

申请号：US14441918

申请日：2013-01-09

申请人： Shaogui AL ,  Chuan WANG ,  Yongning HUANG ,  Yiping FAN ,  Guoyong ZHANG ,  Yanjun LI ,  Ning PAN ,  Shuang ZHANG

发明人： Shaogui AI ,  Chuan WANG ,  Yongning HUANG ,  Yiping FAN ,  Guoyong ZHANG ,  Yanjun LI ,  Ning PAN ,  Shuang ZHANG

IPC分类号： H02H9/02

CPC分类号： H02H9/02 ,  H02H9/021

摘要： A current limiting device for a power grid includes a first current limiting reactor; a first smart fast switch connected with the first current limiting reactor in parallel; a current transformer sleeved on a bus bar located on one side of a circuit resulting from the parallel connection of the first current limiting reactor with the first smart fast switch to monitor the current in the bus bar in real time; and a controller connected with the current transformer to control the switch-off of the first smart fast switch when the current in the bus bar is higher than a first preset value and the switch-on of the first smart fast switch when the current in the bus bar is smaller than a second preset value, wherein the first preset value is higher than the second preset value. The current limiting device improves the operational reliability of a power grid.

摘要翻译： 电网的限流装置包括第一限流电抗器; 与第一限流电抗器并联连接的第一智能快速开关; 电流互感器套在位于电路一侧的总线上，该电流互感器由第一限流电抗器与第一智能快速开关的并联连接而实时监控母线中的电流; 以及与所述电流互感器连接的控制器，用于当所述母线中的电流高于第一预设值时控制所述第一智能快速开关的断开，并且当所述第一智能快速开关中的电流为 母线小于第二预设值，其中第一预设值高于第二预设值。 限流装置提高了电网的运行可靠性。