METHOD OF ENABLING CALIBRATION OF A CURRENT TRANSFORMER, AND ASSOCIATED APPARATUS

摘要

An improved current transformer apparatus includes a current transformer upon which are stored a number of calibration values which can be used when connecting the current transformer to a metering device. An improved method of enabling calibration of the current transformer involves deriving from a signal detected from the current transformer a number of calibration values for the current transformer and storing the calibration values in a storage disposed on the current transformer. A metering device retrieves from the storage the calibration values and applies the calibration values to a signal from the current transformer to generate a calibrated output.