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:
Oct. 20, 2026
Filed:
Jan. 27, 2023
Safegrid Oy, Espoo, FI;
Jyrki Penttonen, Espoo, FI;
Jussi Hakunti, Turku, FI;
Safegrid Oy, Espoo, FI;
Abstract
A method of measuring current for fault detection in a distribution grid. The method includes: using three current transformers, wherein three current transformers are connected to one another; installing three connected current transformers in series on three phase conductors by winding; measuring voltages of three series connected current transformers by measuring first voltage over first current transformer, measuring second voltage over first current transformer and second current transformer, measuring third voltage over first current transformer, second current transformer and third current transformer; using measured first voltage, second voltage and third voltage for determining sum current; using measured first voltage, second voltage, third voltage and calculated sum current for calculating phase currents; using determined sum current and phase currents to detect first fault transient in the distribution grid.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile