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:
Nov. 20, 2018
Filed:
Dec. 23, 2015
Schneider Electric Usa, Inc., Schaumburg, IL (US);
Kevin M. Jefferies, Raleigh, NC (US);
Benjamin W. Edwards, Rolesville, NC (US);
Matthew L. White, Raleigh, NC (US);
Konstantin Alexander Filippenko, Grenoble, FR;
Richard Karl Weiler, Wake Forest, NC (US);
Schneider Electric USA, Inc., Andover, MA (US);
Abstract
The present invention provides a method of using a current transformer for a temperature sensing device. The method determines the temperature of the current transformer's secondary winding by injecting a DC current into the secondary winding, measuring a voltage across the secondary winding, calculating the resistance of the secondary winding from the voltage induced into the secondary winding by the injected DC current and determining the secondary winding temperature by calculations or a comparison with verified resistance/temperature combinations.