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:
Apr. 09, 2024

Filed:

Apr. 08, 2019
Applicant:

Generac Power Systems, Inc., Waukesha, WI (US);

Inventors:

Kyle Klumper, Vancouver, CA;

Jonathan Hallam, Vancouver, CA;

Shabnam Shambayati, Vancouver, CA;

Jonathan Li, Vancouver, CA;

Colby Gore, Vancouver, CA;

Ching Kun Meng, Vancouver, CA;

Assignee:

Generac Power Systems, Inc., Waukesha, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 35/02 (2006.01); H01F 27/40 (2006.01); H01F 27/42 (2006.01);
U.S. Cl.
CPC ...
G01R 35/02 (2013.01); H01F 27/402 (2013.01); H01F 27/427 (2013.01);
Abstract

A smart current transformer for determining primary current or power consumption, by stepping down the primary current to a secondary current for subsequent measurement by a connected meter. The current transformer is provided with a connected non-volatile memory for storing calibration data (and optionally identification data) regarding that particular current transformer. The calibration data can include the gain error and/or phase delay for the current transformer, as determined from prior calibration testing of the current transformer. The calibration data may be communicated to or otherwise determined by the meter, and used to calibrate the measurement of the secondary current, in order to determine the primary current or power consumption. Also disclosed is a system and method utilizing such a smart current transformer.


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