Furnace Transformers Built for Continuous Duty.
Induction and arc furnace transformers up to 30 MVA, 33 kV — designed for the extreme thermal, electrical, and mechanical demands of steel, metal, and ferro-alloy production where transformer failure means furnace downtime.
The Transformer the Furnace Depends On.
Furnace transformers operate in the harshest electrical environment in the industrial sector. Induction furnaces impose high-current low-voltage output with rapid load cycling. Arc furnaces add short-circuit stresses and asymmetric loading on top of continuous thermal duty. Standard power transformers are not built for this.
KLR Furnace Transformers are engineered specifically for induction and arc furnace duty. The winding and insulation system is designed for high current density at low secondary voltage. The mechanical structure is reinforced for repetitive short-circuit forces. The cooling system is sized for continuous operation at rated load — not the intermittent duty cycle of general industrial transformers.
Technical Specifications
- Capacity range: Up to 30 MVA
- Voltage class: Up to 33 kV
- Secondary Voltage: Customized as per Furnace Requirement
- Application: Induction Furnaces, Arc Furnaces, Ladle Furnaces, Ferro-Alloy Furnaces
- Insulation System: Class A Oil-Impregnated Paper
- Cooling: ONAN / ONAF / OFAF / OFWF
- Tank Design: Heavy-Duty Conventional Radiator Type Tank
- Standards: IEC, IS
- Winding Material: Electrolytic Grade Copper
- Winding Type: Disc / Helical / Pair Disc
- Vector Group: Furnace Duty Vector Groups as Required
- Insulation Levels (kVp): Up to 170 kVp (As per Voltage Class)
- Tapping Range: Off-Circuit Tap Changer On-Load Tap Changer (In-Tank or External )
- Frequency: 50 Hz
- Short-Circuit Strength: Designed for Severe Electromechanical Stresses
- Testing: Complete Routine Tests as per IS / IEC . Type Tests on request.
Key Features
- Designed for induction, arc, and ladle furnace applications
- High-current, low-voltage secondary winding design
- Reinforced mechanical structure for repetitive short-circuit forces
- Heavy-duty thermal design for continuous furnace operation
- Optimized for severe load fluctuations and unbalanced loading
- High reliability and long service life in steel and ferro-alloy plants
- Robust cooling systems for demanding industrial environments
Applications
- Steel melting and refining plants — induction furnace duty
- Arc furnace steel plants — EAF transformer duty
- Induction heating and forging operations
- Ferro-alloy manufacturing facilities
- Non-ferrous smelting — aluminium, copper, zinc
- Ladle furnace and vacuum degassing units
- Foundries and metal processing plants
Specify Your Furnace Transformer.
Share your furnace type (induction or arc), MVA rating, secondary voltage, and duty cycle — our engineering team will configure a transformer to your exact process requirements.