US Patent Issued to HITACHI ENERGY on April 15 for "Fault classification and zone identification in a power transmission system" (Indian Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,472, issued on April 15, was assigned to HITACHI ENERGY LTD (Zurich, Switzerland).

"Fault classification and zone identification in a power transmission system" was invented by Od Naidu (Karnataka, India) and Neethu George (Karnataka, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "Fault classification and zone identification in a power transmission system are described. Voltage or current measurements are obtained at a terminal of the transmission line in each of the three phases measured during a fault. Modal transformations are performed on voltage or current measurements to obtain traveling wave signals with reference to each of the three ph...