Medium Frequency Power Supply for Induction Furnace: What You Need to Know
The medium frequency power supply is the electrical heart of an induction melting system.
It converts incoming electrical power into the controlled medium frequency power required by the induction coil.
Main functions
A modern power supply system is designed to provide:
- Stable output power
- Frequency control
- Automatic frequency tracking
- Soft starting
- Over-current protection
- Over-voltage protection
- Short-circuit protection
- Fault protection
KGPS series power supply
KGPS-type medium frequency power supplies are widely used in induction melting systems.
Depending on system design, input voltage configurations may include 380 V, 660 V or 1000 V.
The final electrical configuration must always be confirmed according to the customer's plant power system.
Power selection
The power supply must be matched with:
- Furnace capacity
- Required melting rate
- Metal type
- Operating frequency
- Furnace coil design
- Production schedule
Selecting a power supply simply according to furnace capacity can result in an improperly balanced system.
Complete electrical system
The power supply normally works together with:
Transformer → power supply → capacitor bank → induction coil
The complete system must be electrically coordinated.
Conclusion
A reliable medium frequency power supply is essential for stable induction furnace operation.
For a complete project, power supply selection should be performed together with furnace, coil, capacitor and cooling-system engineering.
Related equipment
- KGPS Series Power Supply
- Parallel Inverter Power Supply
- High-Power MF Power Supply
- Capacitor Bank
- Induction Furnace Transformer
- Furnace Control Cabinet