Double-transformer operation mode switching control system and control method thereof

The invention provides a double-transformer operation mode switching control system and a control method thereof, belongs to the technical field of electrics, and solves the problems that two transformers in the same power supply system cannot run in parallel for a long time and the operation is tedious. Two incoming power supplies are respectively connected in series with a power unit control module, an incoming transformer and a circuit breaker; the programmable logic control module is connected with a control end, the comparison module is connected with a voltage transformer with two inlet wire power supplies, the current zero-crossing detection module is connected with a current transformer with two inlet wire power supplies, and the programmable logic control module is connected with the multi-path photoelectric conversion module, the first circuit breaker, the second circuit breaker and the third circuit breaker respectively. According to the invention, the switching function of the double transformers