ELECTRONIC TRANSFORMER CALIBRATOR CALIBRATION DEVICE AND METHOD BASED ON DIGITAL SOURCE

摘要

Provided are an electronic transformer calibrator calibration device and method based on a digital source. As a calibration measurement system, a digital source and standard synchronous pulse source combined method is adopted, standard IEC61850 data frames are generated by adopting a mathematical method, time delay does not exist between the standard IEC61850 data frames and corresponding analog output signals in another loop, and a ratio difference and an angular difference are superposed by adopting a digital method. By means of the method and the device, since the standard IEC61850 data frames are generated by adopting the mathematical method, the standard IEC61850 data frames can be obtained without conducting analog sampling and the time delay does not exist between the standard IEC61850 data frames and the corresponding analog output signals in another loop; and since the ratio difference and the angular difference are superposed by adopting the digital method, the accuracy is high and the tracing process is simple.