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. 29, 2015
Filed:
Dec. 19, 2013
Michael P. Vangool, Chicago, IL (US);
Nehad El-sherif El-kharbawe, Chicago, IL (US);
George J. Fenty, Chicago, IL (US);
Michael P. Vangool, Chicago, IL (US);
Nehad El-Sherif El-Kharbawe, Chicago, IL (US);
George J. Fenty, Chicago, IL (US);
LITTELFUSE, Inc., Chicago, IL (US);
Abstract
A three-phase GFCI device is disclosed. The three-phase GFCI device may include contactors, a contactor control module configured to cause the contactors to close during normal operation of the GFCI device and open based on receiving a fault signal, a current detection module, a transient suppression module, a miswire detection module, a ground-fault test module, a ground load detection module, and a fail-safe module. In some examples, the GFCI device may include the stated modules in accordance with the UL 943C standard.