专利检索 ap:("LSIS CO., LTD.") AND inv:"Su-Hyeong Jang" 第 1 页

1.

发明授权
Directional over-current ground relay (DOCGR) using sampled value and method for operating the DOCGR 有权

公开(公告)号：US11128128B2

公开(公告)日：2021-09-21

申请号：US16111879

申请日：2018-08-24

申请人： LSIS CO., LTD.

发明人： Su-Hyeong Jang

IPC分类号： H02H7/26 , H02H1/00

摘要： The present disclosure relates to a directional over-current ground relay (DOCGR) for performing a protective relay of the power source system such as a micro-grid system using communications between an SV-remote terminal unit (SV-RTU) and the DOCGR, wherein the SV-RTU is configured for measuring voltage and current of the distributed power source system and thus generating a sampled value (SV) signal. Further, the present disclosure relates to a method for operating the DOCGR.