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:
Jul. 23, 2019

Filed:

Oct. 15, 2015
Applicant:

Win MS, Orsay, FR;

Inventors:

Laurent Sommervogel, Jouy en Josas, FR;

Marc Olivas, Bagnolet, FR;

Arnaud Peltier, Gif sur Yvette, FR;

Assignee:

WIN MS, Orsay, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 7/00 (2006.01); G01K 7/16 (2006.01); G01M 3/04 (2006.01); G01M 3/08 (2006.01); G01M 3/18 (2006.01);
U.S. Cl.
CPC ...
G01K 7/16 (2013.01); G01M 3/04 (2013.01); G01K 2007/166 (2013.01);
Abstract

A method uses at least: one line made up of at least two conductors insulated by a material whose insulation impedance depends locally on the temperature, the line running through the installation; a reflectometer periodically transmitting a reflectometry signal at one end of the line, the signal being propagated along the line, the reflectometer measuring the echoes received and comparing the amplitudes of the echoes with a given reference; a hot spot being detected when the amplitudes of a given number of successive echoes are greater than the given reference, the echoes being provoked by a local reduction of the value of the insulation impedance.


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