Mining current transformation mobile substation with control power supply

The invention discloses a mining current transformation mobile substation with a control power supply and relates to the technical field of mining power equipment. The substation comprises a transformer part, a high-voltage vacuum switch box and a low-voltage protection box, wherein an explosion-proof shell is arranged outside the transformer part, and the transformer part comprises a converter transformer and a control transformer; the converter transformer adopts a Dd0y11 connection group, high-voltage windings are in angle connection, and low-voltage windings are in star connection and angle connection respectively; a coil of the low-voltage winding is composed of two coils, an upper half portion of the coil adopts a Y-shaped connection method, a lower half portion of the coil adopts a D-shaped connection method, phase angle difference of voltage is 30 degrees, the number of layers of the two coils is even, and a cushion block is arranged between the upper half portion of the coil and the lower half portio