The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Aug. 24, 2018
Directional over-current ground relay (docgr) using sampled value and method for operating the docgr
Applicant:
Lsis Co., Ltd., Anyang-si, KR;
Inventor:
Su-Hyeong Jang, Anyang-si, KR;
Assignee:
LSIS CO., LTD., Anyang-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 7/26 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 7/263 (2013.01); H02H 1/0007 (2013.01); H02H 1/0069 (2013.01); H02H 1/0092 (2013.01);
Abstract
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.