ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,299, issued on Oct. 21, was assigned to MASCHINENFABRIK REINHAUSEN GmbH (Regensburg, Germany).
"On-load tap changer and method for actuating an on-load tap changer" was invented by Christian Hammer (Regensburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An on-load tap-changer for switching, without interruption, between winding taps of a tap-changing transformer, including a diverter switch for performing a switch-over from a first to a second fixed contact, a selector for preselecting, without power, the first and second fixed contact, and a first controller, wherein the diverter switch has a plurality of semiconductor and mechanical sw...