DC electronic transformer calibration device and method

The invention discloses a DC electronic transformer calibration device and a method; the device comprises a hardware part and a software part, wherein, the software part is Labview software running on the computer; the connecting structure of the hardware part is as follows: a DC high-voltage generator or a DC large-current generator are respectively connected with a DC proportion standard and to-be-tested transformer port; the DC proportion standard is connected with a standard resistor or a voltage divider, the standard resistor or the voltage divider are connected with the computer; the to-be-tested transformer port is connected with a multimode fiber optic transceiver; the multimode fiber optic transceiver is connected with the computer; the computer and the to-be-tested transformer port are connected with a sync source. The advantages of the invention are as follows: the adaptability is good, different proportion standards are provided, various DC electronic transformers can be calibrated, the performance is accurate and reliable, and the using is convenient.