US Patent Issued to ABB Schweiz on May 13 for "Method and apparatus for controlling neutral point voltage of three-phase resonant-earthed electric network" (Finnish Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,131, issued on May 13, was assigned to ABB Schweiz AG (Baden, Switzerland).

"Method and apparatus for controlling neutral point voltage of three-phase resonant-earthed electric network" was invented by Ari Wahlroos (Vaasa, Finland), Janne Altonen (Tampere, Finland) and Janne Leminen (Tampere, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for controlling a neutral point voltage of a three-phase resonant-earthed electric network, the apparatus including determining means configured to determine a target value for the neutral point voltage of the three-phase resonant-earthed electric network, calculating means configured...