BIDIRECTIONAL ELECTRONIC WATT METER

摘要

PURPOSE: A bidirectional electronic watt hour meter is provided to efficiently use power by connecting to a smart grid system. CONSTITUTION: A measuring unit(300) produces power data by using a digital signal of an A/D converter. A first memory unit(500) stores power data of the measuring unit. A second memory unit(600) stores error compensation information about the power data stored in the first memory unit. A microcomputer(400) corrects the error of the power data by using error correction information of the second memory unit.