The primary and secondary electrical schematic diagrams of the power supply and distribution project box transformer, including the vacuum load switch, the plant distribution transformer protection schematic diagram, the secondary schematic diagram of the high-voltage incoming cabinet, the secondary schematic diagram of the high-voltage incoming cabinet, the secondary schematic diagram of the high-voltage contact cabinet, the secondary schematic diagram of the transformer outgoing cabinet, the low-voltage incoming cabinet, the low-voltage outgoing cabinet, the lighting and temperature control in the box transformer, are of high reference value