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:
May. 03, 2011
Filed:
Mar. 26, 2008
Carlos Restrepo, Atlanta, GA (US);
Hugh Kinsel, Sugar Hill, GA (US);
Vaske Mikani, Atlanta, GA (US);
Joselito Endozo, Dacula, GA (US);
Carlos Restrepo, Atlanta, GA (US);
Hugh Kinsel, Sugar Hill, GA (US);
Vaske Mikani, Atlanta, GA (US);
Joselito Endozo, Dacula, GA (US);
Siemens Industry, Inc., Alpharetta, GA (US);
Abstract
A circuit tests the health of a ground-neutral transformer within a ground fault circuit interrupter. This test can include testing both the ground-to-neutral detection circuitry and the differential current detection circuitry. The test circuit provides a conductive path through the respective cores of a differential transformer and the ground-neutral transformer of the GFCI device. A closed loop induces current from the differential transformer, which creates a current imbalance through the differential transformer. In a properly working device, the circuit breaker will trip, confirming the health of the ground-neutral transformer portion of the GFCI.