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, 2024

Filed:

Jul. 29, 2022
Applicant:

S&c Electric Company, Chicago, IL (US);

Inventor:

Thomas J. Tobin, Northbrook, IL (US);

Assignee:

S&C Electric Company, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 1/04 (2006.01); H02H 3/08 (2006.01); H02H 3/093 (2006.01); H02H 7/04 (2006.01);
U.S. Cl.
CPC ...
H02H 3/093 (2013.01); H02H 3/006 (2013.01); H02H 1/04 (2013.01); H02H 3/00 (2013.01); H02H 3/08 (2013.01); H02H 7/04 (2013.01);
Abstract

A method for determining an optimized TCC operating curve for an electronic interrupting device that protects a distribution transformer in a power distribution network, where the TCC operating curve is some optimized predetermined percentage above a TCC curve for normal transformer operation. The method includes providing a TCC transformer curve that identifies an allowed transformer operation current once the transformer magnetics have been stabilized and the transformer is operating normally, and determining a TCC operating curve that is defined by points along the transformer curve plus a predetermined percentage above the transformer curve, where the operating curve identifies a response time for when the electronic interrupting device will open in response to a certain current flow.


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