Calibration of Integrated Error Verification Equipment for 10kV High Voltage Electrical Energy Measurement Device

The current test method of high voltage energy measurement device is that test meter,voltage transformer and current transformer,respectively.Then get the total composite error by theoretical calculation.The total composite error is used to determine the accuracy level of the measurement device.This assessment method does not meet the IEC’s basic principles on the power meter and power meter testing device.Therefore high voltage electrical energy measurement device has become a research focus.This article describes the method of calibration on high voltage electrical energy measurement device.The high-voltage standard energy measurement system of this method composed of standard PT,standard CT and standard meter.And the uncertainty of the measurement result was evaluated.Evaluation results show that the calibration method is reliable.