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:
Jul. 28, 2026
Filed:
Dec. 13, 2023
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Marcos A. Donolo, Pullman, WA (US);
Anushka M. Dissanayake, Pullman, WA (US);
Pallavi Kulkarni, Pullman, WA (US);
Jay Hartshorn, Pullman, WA (US);
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Abstract
A system for high impedance bus protection that includes a safety module to divert excess current away from a protective element of an intelligent electronic device. The safety module may include a variable resistor and a bypass relay in parallel across secondaries of one or more current transformers. The bypass relay may be configured to close upon detection of excess current through the secondaries to divert the excess current away from the variable resistor and the protective element.