Method and system for judging accuracy abnormity of gateway metering current transformer

The invention discloses a method and a system for judging the accuracy abnormity of a gateway metering current transformer, relates to the technical field of equipment detection, can accurately position a current transformer with out-of-tolerance abnormity, and greatly reduces the judgment workload of the accuracy abnormity of the gateway metering current transformer. The method comprises the steps of obtaining current data collected at the two sides of a plant station bus, performing current balance detection on the current data output by a current transformer by using a pre-constructed first anomaly detection model to obtain a current deviation condition at the two sides of the plant station bus, and when abnormal current deviation at the two sides of the plant station bus lasts for a preset time length, judging whether the current deviation condition is abnormal or not. And performing anomaly positioning detection on the current transformers on the same loop on the two sides of the plant station bus by usi