Rectifier cabinets primarily provide traction power for overhead electric locomotives used in mining and tunneling, 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 employs a three-phase bridge rectifier circuit structure with the same-phase parallel configuration.

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. For the reliability of the generator rotor current, typically two or three rectifier cabinets are used. 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).