Multi-voltage input and output dry-type isolation transformer for photovoltaic inverter test

The utility model relates to the technical field of transformers, in particular to a multi-voltage input and output dry-type isolation transformer for a photovoltaic inverter test, which comprises an iron core, a primary side coil and a secondary side coil, a plurality of input side wiring copper bars are connected onto a foil material on the inner side of the primary side coil and extend out of the upper end of the primary side coil, and the secondary side coil is connected with the input side wiring copper bars. The upper ends of the innermost input side wiring copper bars of the three primary side coils are all connected to an input side connecting copper bar, and the input side connecting copper bar is fixedly connected with the iron core; a plurality of output side wiring copper bars are connected to the foils on the inner sides of the secondary side coils, the output side wiring copper bars extend out of the upper ends of the secondary side coils, the output side wiring copper bars on the innermost side