Urja Techniques (India) Pvt. Ltd. designs, manufactures, and exports custom-engineered Furnace Transformers engineered for extreme electrical, thermal, and dynamic stresses encountered in steel plants, smelting operations, and chemical processing facilities worldwide.
Operating a furnace transformer requires handling severe cyclic overloads, short circuits caused by electrode scrap movements, frequent switching operations, and heavy harmonic distortions. As an ISO 9001:2015, ISO 14001:2015, and ISO 45001 certified transformer OEM with over 30 years of manufacturing excellence, Urja Techniques builds robust furnace duty units rated up to 30 MVA with primary voltages up to 33 kV and specialized low-voltage, extremely high-current outputs.
Our furnace transformers are fully compliant with international quality norms including IEC 60076, IS 2026, and ANSI/IEEE standards. Every unit undergoes rigorous type testing and routine inspection at accredited independent test laboratories (CPRI & ERDA) to ensure optimal short-circuit withstand capacity, minimal thermal losses, and long operational lifespans in demanding industrial environments across Africa, the Middle East, Europe, and Asia.
| Technical Attribute | Standard Export Range / Specification |
|---|---|
| Power Scope / Capacity | 500 kVA to 30,000 kVA (30 MVA) |
| Primary Voltage (HV) | 11 kV, 22 kV, 33 kV (Custom HV inputs available) |
| Secondary Voltage (LV) | 85 V to 1,200 V (High Current Output) |
| Rated Frequency | 50 Hz / 60 Hz (Global Utility Compatibility) |
| Winding / Coil Material | High-Conductivity Electrolytic Copper (ETP Grade) |
| Cooling Mechanism | ONAN, ONAF, OFAF, or OFWF (Oil Forced Water Forced) |
| Voltage Regulation / Tappings | On-Load Tap Changer (OLTC) / Off-Circuit Tap Changer (OCTC) |
| Core Insulation & Steel | Prime Cold Rolled Grain Oriented (CRGO) Step-Lap Design |
| Efficiency Rating | Up to 99.9% (Low Loss, Low Noise Design) |
| International Standards Compliance | IEC 60076, IS 2026, IS 1180, ANSI / IEEE C57.12.00 |
| Third-Party Testing & Certification | Type-tested at CPRI (Central Power Research Institute) & ERDA |
Engineered to match unique metallurgical processes, electrode configurations, and duty cycles for global procurement clients.
Heavy-duty step-down transformers engineered to deliver massive current output at low secondary voltages. Built with toroidal/layer wound copper coils for high overload endurance in intensive heating cycles.
Specifically designed for Steel Electric Arc Furnaces (EAF). Reinforced internal clamping bracing prevents mechanical damage caused by severe electromagnetic forces during arc short-circuit conditions.
Equipped with motorized On-Load Tap Changers (OLTC) for seamless voltage adjustments under load. Ideal for smelting, ferro-alloy processing, and calcium carbide industrial furnaces.
High-efficiency duty transformer designed for continuous thermal loading and induction heating systems. Features low-noise construction, hermetically sealed or expansion tank configurations.
Engineered to supply ultra-high current output for submerged arc smelting processes (ferro-silicon, ferro-manganese). Provides exceptional thermal withstand against severe harmonic distortion.
Multi-winding industrial transformer custom-built to feed solid-state thyristor and rectifier converters for induction melting applications with high harmonic filtering integration.
Why leading EPC contractors, steel mills, and utility buyers select Urja Techniques furnace transformers.
Furnace operation involves sudden short circuits during electrode scrap cave-ins. Our transformer coils undergo a precision pre-compression process and rigid wooden/epoxy clamping structure to withstand extreme radial and axial electrodynamic forces.
Heavy non-linear furnace loads produce strong harmonic currents. We utilize de-rated flux density designs combined with prime-grade CRGO steel cores (step-lap jointing) to prevent localized stray-loss heating and core saturation.
Extremely high secondary currents (up to 60 kA) require custom-built interleaved copper busbar arrangements to minimize skin effect, proximity losses, and parasitic inductive voltage drops across furnace leads.
For high ambient industrial environments, we offer Oil Forced Water Forced (OFWF) and Oil Forced Air Forced (OFAF) heat exchangers, ensuring continuous thermal dissipation even during peak overload conditions.
Delivering certified quality and seaworthy packaging for international procurement orders across 40+ countries.
Every furnace transformer manufactured at Urja Techniques undergoes rigorous testing in accordance with IEC 60076 and IS 2026. Our testing facility includes dedicated temperature-rise testing rigs, high-voltage dielectric withstand equipment, and precision power loss analyzers.
Get in touch with our expert engineering team for customized transformer designs, technical drawings, and commercial quotations for global industrial projects.