This project includes 16 sets of BHHT-3000 series 400V, 132KW air-cooled island low-voltage inverter cabinet, and 6 Schneider BLOKSET series low-voltage switch cabinets (BLOKSET cabinets). It is an integrated solution integrating switch cabinets and frequency conversion cabinets, reducing the directness of different manufacturers.The interface communicates,saving production time. The project has passed the 168 test run in March 2018. The BHHT-3000 variable frequency speed control system still achieves the on-site power-on commissioning 0 failure rate with its excellent performance.