ALEXANDRIA, Va., May 12 -- United States Patent no. 12,627,135, issued on May 12, was assigned to HITACHI ENERGY LTD (Zurich, Switzerland).
"Distance protection of a transmission line" was invented by Od Naidu (Bangalore, India), Neethu George (Bangalore, India), Sinisa Zubic (Vasteras, Sweden) and Zoran Gajic (Vasteras, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method for distance protection of a transmission line carrying a plurality of phases for a phase-to-phase-to-ground fault comprising a first phase and a second phase of the plurality of phases as faulted phases in the phase-to-phase-to-ground fault, wherein the first phase is different from the second p...