Multifunctional transformer ratio bridge tester

The utility model discloses a multifunctional transformer ratio bridge tester, comprising a multifunctional transformer ratio bridge, several capacitance type potential transformers, a multichannel A/D converter and a CPU chip. Two ends of the voltage transformer are respectively electrically connected with the multifunctional transformer ratio bridge and the multichannel A/D converter; the multichannel A/D converter is connected with the CPU chip through a data line; the multifunctional transformer ratio bridge is provided with a panel; the panel is provided with a plurality of lead wire sockets, a supply socket, a high-voltage plug for the voltage transformers, a grounding plug and a touch liquid crystal display screen; the lead wire sockets are respectively connected to the voltage transformers in a point-to-point manner; and the touch liquid crystal display screen is connected with the CPU chip. The advanced multichannel A/D converter is employed, the measuring range is wide, the CPU chip is a core proces