Electronic transformer checking device based on synchronization pulse output power supply

The invention relates to an electronic transformer checking device based on a synchronization pulse output power supply, belonging to the field of calibration, verification and detection of an electronic transformer. The high-precision synchronous pulse power supply outputs a high-precision current and voltage signal and a synchronous pulse signal, output of the electronic transformer to be tested is simply calculated, the error of a digital output electronic transformer and the error of an analog output electronic transformer can be accurately tested, a standard transformer is not required, rate error and angle difference test of the electronic transformer are simplified, and a novel method is provided for calibration of the electronic transformer.