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:
Apr. 14, 2026
Filed:
Nov. 01, 2023
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Abstract
The presently described systems and methods include differential protection architectures for power lines, including three-phase transmission lines and distribution lines, in which each protective device monitors and protects more than one power line. A protective device with multi-channel line current differential protection provides additional security from data corruption and/or single event upsets. A protective device on one end of a transmission line may include multiple communication channels to simultaneously receive independent differential data (e.g., current measurements) from protective devices on the other end of the transmission line. The device may use the independent channels of line current differential protection data to implement multiple independent differential protection functions for two or more power line segments.