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:
Sep. 15, 2026
Filed:
Jun. 10, 2024
Google Llc, Mountain View, CA (US);
Hammad Ahmad Khan, Leesburg, VA (US);
Kei Hao, Anaheim, CA (US);
Krishnanjan Gubba Ravikumar, Ashburn, VA (US);
Google LLC, Mountain View, CA (US);
Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for verifying current transformer polarity for one or more current transformers. In one aspect, a method comprises for each input power leg of a protected device, injecting a first test current into a first primary node Hof a respective current transformer to induce a second test current in a first secondary node Sof the respective current transformer, determining a positive test result based on the flow of the second current, and determining a polarity verification for each of the input power legs of the protected device when a positive test result is determined for each of the one or more input legs of the protected device.