Railway vehicle high-voltage transformer

The utility model relates to a railway vehicle high-voltage transformer, which comprises a power supply module, an acquisition processing module and a signal output module, wherein the power supply module comprises a first high-voltage arm resistor, a first low-voltage arm resistor, a luminous plate and a photovoltaic cell panel, one end of the first high-voltage arm resistor is connected with a high-voltage wire, the other end is connected with the first low-voltage arm resistor, the other end of the first low-voltage arm resistor is grounded, the luminous plate is connected with a common terminal of the first high-voltage arm resistor and the first low-voltage arm resistor, the photovoltaic cell panel is arranged beside the luminous plate and connected with the acquisition processing circuit module. The railway vehicle high-voltage transformer provided by the utility model is small in size, and realizes that an internal circuit module of the transformer is powered by the existing high-voltage electricity wi