Electric drive low-voltage control device of mining direct-current locomotive

The utility model discloses an electric drive low-voltage control device of a mining direct-current locomotive, belongs to an electric traction apparatus in high-voltage direct-current power supply, and relates to a low-voltage control device of the locomotive. The electric drive low-voltage control device is characterized in that a master controller is connected with a battery E1, a reverser pneumatic electromagnetic valve and a shutter pneumatic electromagnetic valve respectively; a reverser is provided with a photoelectric switch GDK-1, and a connecting terminal is electrically connected with a battery E2, an overvoltage relay J5, a sequence relay J1 and a reverse relay J2 respectively; a shutter is provided with a photoelectric switch GDK-II, and the connecting terminal is electrically connected with a battery E3, a positive and reverse relay J3 and an electric braking relay J4 to control a high-voltage power to be connected with a motor. The relays are integrated in a relay cabinet, and the relay cabinet