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. 13, 2022
Filed:
Jan. 27, 2020
Applicant:
Gentec Inc., Québec, CA;
Inventors:
Assignee:
GENTEC INC., Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01R 31/01 (2020.01); G01R 31/40 (2020.01); H02J 3/00 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); G01R 31/016 (2013.01); G01R 31/40 (2013.01); H02J 3/001 (2020.01);
Abstract
A method and an apparatus are presented which enable the identification of a capacitor fault in a given string of a capacitor bank, based on the computation of the string impedance by measuring the string AC current and voltages, where each string includes a plurality of capacitor elements connected in series. The method consists of measuring the string capacitive impedance and comparing this value with a previously measured capacitive impedance of the same string. If a difference between these two values is obtained, which exceeds a given threshold for a certain duration, a fault is recorded.