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:
Mar. 10, 2026
Filed:
Nov. 08, 2023
Abb Schweiz Ag, Baden, CH;
Govind S. Chavan, Garner, NC (US);
Chunmeng Xu, Raleigh, NC (US);
Zhou Dong, Raleigh, NC (US);
Pietro Cairoli, Cary, NC (US);
ABB Schweiz AG, Baden, CH;
Abstract
Embodiments of the present disclosure provide an electrical circuit and a method for detecting short circuit faults with a solid-state circuit breaker (SSCB) in a direct current (DC) electrical system. The electrical circuit includes a first sensor configured to detect a fault current of an electrical system, and the first sensor is configured for installation on a main current path of an SSCB pole; a second sensor configured to detect a derivative of the fault current of the electrical system with respect to time, and the second sensor is configured for installation on the main current path of the SSCB pole; and an analog circuit, and an output of the first sensor and an output of the second sensor are connected to the analog circuit.