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:
Jun. 28, 2022
Filed:
May. 02, 2018
Applicant:
Siemens Aktiengesellschaft, Munich, DE;
Inventors:
Dirk Hertz, Fichtenhof, DE;
Johann Seitz, Amberg, DE;
Assignee:
SIEMENS AKTIENGESELLSCHAFT, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); H02P 29/024 (2016.01); G01R 31/327 (2006.01); G01R 31/34 (2020.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02P 29/024 (2013.01); G01R 31/3278 (2013.01); G01R 31/34 (2013.01); H02P 27/08 (2013.01);
Abstract
A soft starter includes a plurality of live phases, wherein a semiconductor switching element and an electromechanical switch parallel-connected thereto are arranged in each phase. In the soft starter, on a load-facing side of the semiconductor switching elements and of the electromechanical switches, the plurality of phases are connected in a circuit forming a star point. The star point circuit includes at least one passive component and is configured for detecting a reduced voltage drop in a defective state of a semiconductor switching element and/or of an electromechanical switch.