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:
Oct. 06, 2026

Filed:

Dec. 16, 2024
Applicant:

Abb Schweiz Ag, Baden, CH;

Inventors:

Zhou Dong, Raleigh, NC (US);

Govind S. Chavan, Garner, NC (US);

Harish Suryanarayana, Apex, NC (US);

Pietro Cairoli, Cary, NC (US);

Assignee:

ABB Schweiz AG, Baden, CH;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 1/00 (2006.01); H02H 3/08 (2006.01);
U.S. Cl.
CPC ...
H02H 3/08 (2013.01); H02H 1/0007 (2013.01);
Abstract

A predefined peak current value for a system that includes a transfer switch system, a first power source, a downstream transformer, and a downstream circuit breaker is obtained. A sensed current value for some components of the system are obtained by sensors of the system. A corresponding semiconductor switch assembly of the first power source is instructed to turn off in response to determining a fault in the electrical distribution system using the sensed current value and the predefined peak current value. A reference current is obtained for the downstream circuit breaker. An updated sensed current value is obtained. The corresponding semiconductor switch assembly of the first power source is instructed to turn on based on an integrated value of the updated sensed current value matching an integrated value of the reference current, where turning on and off the switch is repeated until the downstream circuit breaker clears the fault.


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