A Dual-Power Dual-VFD (Variable Frequency Drive) Fan System is an advanced industrial ventilation solution designed for high reliability, energy efficiency, and uninterrupted operation in critical environments such as mines，tunnels and so on.

A High Voltage Variable Frequency Drive (HV VFD) is a power control device designed to adjust the speed and torque of high-voltage motors (typically rated at 3kV, 6kV, 10kV, or higher) by varying the input power frequency, enabling energy savings, soft starts, and precise motor control.

Low voltage mining explosion-proof frequency converter is a power control equipment designed specifically for flammable and explosive environments such as coal mines and metal mines, used to drive mining machinery such as fans, water pumps, belt conveyors, and elevators. Its core features are explosion-proof safety design and adaptability to harsh working conditions, while also possessing functions such as high efficiency, energy saving, and intelligent control.