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:
Feb. 15, 2022
Filed:
Jan. 10, 2020
Applicant:
General Electric Company, Schenectady, NY (US);
Inventors:
Timothy John Sommerer, Ballston Spa, NY (US);
Joseph Darryl Michael, Delmar, NY (US);
David John Smith, Clifton Park, NY (US);
Assignee:
General Electric Technology GmbH, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 3/087 (2006.01); H01C 7/12 (2006.01); H01H 71/02 (2006.01); H01H 71/08 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/087 (2013.01); H01C 7/12 (2013.01); H01H 71/02 (2013.01); H01H 71/08 (2013.01); H02H 1/0007 (2013.01);
Abstract
A DC circuit breaker includes a gas discharge tube (GDT) coupled in parallel with an extinguishing path. The GDT conducts and interrupts a load current through a normal current path. The GDT includes a thermionic cathode, an anode, and a control grid. The control grid is configured to regulate opening and closing of the normal current path. The extinguishing path is configured to lengthen a break time for the DC circuit breaker.