ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,115, issued on Oct. 20, was assigned to Schneider Electric Industries SAS (Rueil-Malmaison, France).
"Method and apparatus for differential protection of protection section, relay protection device" was invented by Wansen Du (Shanghai) and Xinrong Ni (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A differential protection method for a protection section of a power system is disclosed. The differential protection method includes: obtaining a first secondary current value of a first current transformer and a second secondary current value of a second current transformer; determining a differential current value and a braking current value; o...