Multifunctional power transformer secondary vector dynamic detection device

The invention relates to the field of power transformer vector measurement, in particular to a multifunctional power transformer secondary vector dynamic detection device which comprises a transformer secondary vector integrated detection module which comprises a high-voltage signal input interface module, a high-voltage signal acquisition module and a high-voltage signal processing module. The high-voltage signal input interface module is used for converting analog quantity standard signals with continuously changing voltage, phase voltage, phase sequence, phase angle and phase difference of a bus PT secondary winding or a three-phase four-wire power line into signals which are suitable for internal processing of a programmable controller and are represented by a plurality of binary digits. The method is suitable for five kinds of power secondary vector detection work including power transformer, single bus PT secondary phasing, double bus PT secondary phasing, 400V low-voltage alternating-current single pow