ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,870, issued on Oct. 20, was assigned to Safegrid Oy (Espoo, Finland).
"Method and apparatus for fault detection in distribution grid" was invented by Jyrki Penttonen (Espoo, Finland) and Jussi Hakunti (Turku, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "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...