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. 02, 2010
Filed:
May. 06, 2005
Jean-pierre Dupraz, Bressolles, FR;
Lionel Lucot, Fleurieux, FR;
Olivier Chuniaud, Chambery, FR;
Bernard Regnier, Trevignin, FR;
Jean-Pierre Dupraz, Bressolles, FR;
Lionel Lucot, Fleurieux, FR;
Olivier Chuniaud, Chambery, FR;
Bernard Regnier, Trevignin, FR;
Areva T&D SA, Paris, FR;
Abstract
The current transformer comprises at least two partial circuits (CB) each comprising a Rogowski type winding (C), each of said the partial circuits being made in the form of an angular portion of a complete circuit (CB) which surrounds at least one primary conductor (A,B,C) of the transformer over 360°. The winding (C) of each partial circuit (CB) is constituted by a go winding (C) and by a return winding (C) which extend over the angular extent (θ) of the partial circuit (CB). For each partial circuit (CB), the go and return windings are electrically connected in series, both having turns wound in the same direction so as to form a single winding (C) which presents a pair of adjacent electrical terminations (T, T) connected to an acquisition system (').