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.

Date of Patent:
Mar. 17, 2020

Filed:

Jan. 09, 2017
Applicant:

Safran Electrical & Power, Blagnac, FR;

Inventor:

Pierre Henri Henrard, Blagnac, FR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/18 (2006.01); G01R 1/36 (2006.01); H01F 38/28 (2006.01); H01F 38/30 (2006.01); H01F 38/32 (2006.01); G01R 31/00 (2006.01);
U.S. Cl.
CPC ...
G01R 15/183 (2013.01); G01R 1/36 (2013.01); H01F 38/28 (2013.01); H01F 38/30 (2013.01); H01F 38/32 (2013.01); B64D 2221/00 (2013.01); G01R 31/008 (2013.01); H01F 2038/305 (2013.01);
Abstract

A current measuring device is protected against electrical surges in the event of the device being open circuit. The device includes a first current transformer, a first connection terminal having connected thereto a first terminal of the first current transformer, a second connection terminal having connected thereto a second terminal of the first current transformer, a protective resistance having a first terminal connected to the second connection terminal, and a load resistance connected between the first and second connection terminals across the terminals of which a voltage is measured from which the current flowing in a circuit passing through the first current transformer is determined. The device also includes a second current transformer connected to the terminals of the protective resistance, and current branch connection structure connected between the first connection terminal and a second terminal of the protective resistance.


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