Direct Feed
Power supply system for arc furnaces, directly connected to the grid
Building on decades of expertise in the Metals industry, GE Power Conversion has developed an advanced solution to allow steel producers to help optimize their OPEX, while delivering ultimate grid power quality.
Our power supply solution is suitable for AC or DC Electrical Arc Furnaces (EAF). It is directly connected to the grid and allows to precisely manage the furnace electrode current. The digital control system enables a qualitative monitoring of the electrical arc and prevent disturbances.
With our Direct Feed converter system, we offer an integrated solution including:
• Multi-level converter system
• EAF transformer
• EAF control & regulation systems
We can also provide the full high voltage grid connection and distribution system, including HV/ MV grid step-down transformer and GIS/AIS.
GE Power Conversion’s Direct Feed system is based on proven press-pack IEGT technology offering high availability thanks to redundancy.
Benefits
Process performance
• Reduced electrical power consumption –stable operation
• Improved power-on time
• Significant reduction of electrodes consumption
Life cycle/Reduced maintenance
• Limited usage of transformer tap changer
• No reactor tap changer
• Circuit breakers only switched at no-load
Grid performance
• AF reactive power and harmonic current not propagated to the grid
• Improved EAF flicker
• Enhanced harmonic performance