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. 16, 1986
Filed:
Aug. 31, 1983
Applicant:
Inventors:
Gilles Missout, St. Bruno, CA;
Marcel Dery, Varennes, CA;
Assignee:
Hydro-Quebec, Quebec, CA;
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; H05K / ; H01C / ;
U.S. Cl.
CPC ...
324126 ; 174 / ; 338 49 ; 361424 ;
Abstract
An apparatus for sensing and measuring a DC or AC current on an LV or HV power circuit. The apparatus comprises a shunt element having an input connected to the transmission line. The current flowing through the shunt is measured by an electronic circuit which is located in a conductive housing connected in series with the shunt element. The housing conducts the current from the shunt back to the power circuit. The housing is dimensioned to contain therein the electronic circuit whereby to shield the circuit from thermal effects of the shunt element, the magnetic field effect of the measured current, and environmental electrostatic interference.