The working principle of BDG series electric flat car is as follows: the AC 380V power supply is stepped down to the AC 36V two-phase through the transformer and connected to the two rails respectively. The wheels on the track flat car introduce the AC 36V power supply on the track into the vehicle electrical equipment. The box, through the rectifier module, rectifies the AC 36V to DC 36V and then controls the DC motor through the DC control system to make the flat start, stop, advance, retreat, speed regulation and so on.
