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:
Jan. 21, 2025
Filed:
Sep. 13, 2019
Applicant:
Siemens Aktiengesellschaft, Munich, DE;
Inventor:
Yi Zhu, Kuemmersbruck, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01); H01H 9/54 (2006.01); H01H 33/59 (2006.01); H02H 1/00 (2006.01); H02H 3/087 (2006.01); H02H 7/125 (2006.01); H02H 7/22 (2006.01); H02H 7/26 (2006.01); H02H 9/00 (2006.01); H02J 1/10 (2006.01); H02J 1/12 (2006.01);
U.S. Cl.
CPC ...
H01H 33/596 (2013.01); H01H 9/542 (2013.01); H02H 1/0007 (2013.01); H02H 3/087 (2013.01); H02H 7/1252 (2013.01); H02H 7/1257 (2013.01); H02H 7/222 (2013.01); H02H 7/268 (2013.01); H02H 9/001 (2013.01); H02J 1/10 (2013.01); H02J 1/12 (2013.01); H01H 2009/544 (2013.01);
Abstract
A device is for opening or closing a DC circuit with at least one busbar. The device includes an electric switch for opening or closing the DC circuit; a fault current detector; a trigger unit and a precharging device. The electric switch opens the DC circuit via the trigger unit upon a fault current being detected by the fault current detector. Further, the precharging device restores the voltage on the busbar prior to closing the electric switch. The device further includes a control unit for automatically closing the electric switch after the pre-charging process.