Why Choose Our Furnace Transformers
We specialize in manufacturing heavy-duty furnace transformers for steel mills, foundries, and metallurgical plants. Our designs incorporate advanced cooling technologies, robust mechanical structures, and high-quality materials to ensure reliable operation in the most demanding furnace environments.
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- Extreme High Current Design specifically engineered for very high current outputs required by electric arc furnaces and smelting operations.
- Advanced Cooling Systems features forced oil cooling (OFAF/OFWF) with high-efficiency heat exchangers for optimal thermal management.
- Frequent Voltage Regulation equipped with on-load tap changers supporting rapid voltage adjustments during furnace operation cycles.
- Superior Short-Circuit Strength reinforced winding structures and mechanical bracing to withstand severe furnace short-circuit conditions.
- Heavy-Duty Cycle Operation designed for continuous, demanding duty cycles typical of steel production and metal refining processes.
Industrial Furnace Transformer Series
Our furnace transformer series covers a wide range of capacities and configurations for various furnace types and metallurgical processes. Each transformer is custom-engineered to match specific furnace requirements and operating conditions.
Arc Furnace Transformer
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- Capacity: 5MVA-100MVA
- Voltage: 10kV-110kV
- For EAF steelmaking
- High current output
- OLTC equipped
- Custom design
Ladle Furnace Transformer
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- Capacity: 5MVA-50MVA
- Voltage: 10kV-66kV
- For LF refining
- Stable voltage output
- OLTC equipped
- Custom design
Submerged Arc Furnace Transformer
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- Capacity: 5MVA-80MVA
- Voltage: 10kV-110kV
- For ferroalloy smelting
- For silicon metal
- High current design
- Custom design
Induction Furnace Transformer
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- Capacity: 500kVA-20MVA
- Voltage: 6kV-35kV
- For induction melting
- For induction heating
- Medium frequency
- Custom design
Need a Custom Solution?
Contact our engineering team with your specific requirements. We will provide a tailored solution and competitive quotation.
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Frequently Asked Questions
What impedance range do your furnace transformers cover?
Impedance is set against the melting cycle, generally inside the 4.5% to 21% band. Higher impedance limits short circuit current and stabilises the arc, which matters more on a furnace than a low loss figure.
How wide is the secondary voltage regulation range?
Secondary voltages are normally in the low hundreds of volts with multiple tap steps and on load tap changing, so the furnace can be driven through meltdown, refining and holding without changing equipment.
Which cooling methods are used on furnace transformers?
AN and AF on smaller units, with OFAF and OFWF on larger ones. The cooling arrangement is sized against the cyclic load rather than a steady rating, because furnace duty alternates between heavy and light load.
Can you handle short circuit duty on an arc furnace?
Yes. Arc furnace service produces repeated short circuits and mechanical shock, so windings are braced, leads are shortened and balanced, and the design is checked against the short circuit requirement in the applicable standard.
