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:
Dec. 18, 2012
Filed:
Mar. 01, 2011
Seung Hyun Bang, Busan, KR;
Kwon Bae Park, Daejeon, KR;
Jung Wook Sim, Cheongju, KR;
Won Joon Choe, Cheongji, KR;
Gyeong Ho Lee, Cheongju, KR;
Seung Hyun Bang, Busan, KR;
Kwon Bae Park, Daejeon, KR;
Jung Wook Sim, Cheongju, KR;
Won Joon Choe, Cheongji, KR;
Gyeong Ho Lee, Cheongju, KR;
LS Industrial Systems Co., Ltd., Anyang-si, Gyeonggi-do, KR;
Abstract
The present invention is related to a hybrid fault current limiter comprising a switching unit detaching a moving contact located on a cable and transmitting a trip signal if a fault current is flowed at an electric power system, a semiconductor switching unit connected in series with the switching unit and configured to be turned off to limit the flow of the fault current when the trip signal is transmitted, and a circuit breaking unit connected in parallel to the switching unit and the semiconductor switching unit and configured to limit the fault current detoured from the switching unit and the semiconductor switching unit. The present invention provides rapid treatment for the fault current problem by applying the algorithm sensing the occurrence of the fault current and the algorithm limiting the fault current simultaneously.