ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,768,903, issued on Oct. 20, was assigned to Accuenergy (Canada) Inc. (Canada).

"Detection of circuit anomalies in current transformers" was invented by Shaohang Cui (Toronto), Yufan Wang (Toronto), Ketao Li (Toronto) and Liang Wang (Toronto).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention presents a method for detecting circuit anomalies in a current transformer. The method is executed by a module integrated into an intelligent electronic device. The process involves a multi-step analysis that starts with comparing the frequency of a detected current signal from the transformer's secondary winding with the frequency of a detected voltage si...