Rectifier cabinets primarily provide traction power for overhead electric locomotives used in mines and tunnels, converting AC power into DC power for transmission to the locomotives.

Mining rectifier cabinet). A rectifier cabinet is a power unit that converts alternating current (AC) to direct current (DC). The rectifier cabinet utilizes a three-phase bridge rectification circuit with the same-phase parallel structure.

Rectifier cabinet function:

1. Rectifier cabinets are used to convert the 100HZ three-phase AC power output from the main exciter to DC current for the motor rotor. Typically, there are two or three rectifier cabinets to ensure the reliability of the generator rotor current. During normal operation, they operate in parallel.

2. The rectifier cabinet converts the three-phase AC voltage from the excitation transformer into DC voltage (using a three-phase bridge rectifier).