ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,918, issued on May 5, was assigned to Transportation IP Holdings LLC (Norwalk, Conn.).

"Ground fault detection system and method" was invented by Sai Kumar Vudugula (Bangalore, India), Rajendra Prasad Chittimalla (Bangalore, India) and Ajith Kuttannair Kumar (Ashburn, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ground fault detection system for a power system having a DC link, a battery bank, a link capacitor unit connected to the DC link, and plural power converters connected to the DC link. The power converters convert first DC power from the DC link to at least one of AC power or second DC power for powering at least one electrical load. A...