Introduction

In heavy industries where high-temperature processes are essential, Furnace Transformers play a critical role by supplying specialized power to electric furnaces. Engineered to handle extremely high currents at low voltages, these transformers ensure efficient, stable, and reliable power delivery to melting, refining, and heat treatment operations.

What is a Furnace Transformer?

A Furnace Transformer is a specially designed transformer that steps down high voltage to a low voltage, high current supply required for electric furnaces used in industries like steel, metal processing, and foundries. It is built to withstand heavy electrical and thermal stresses.

How Does It Work?

The transformer receives high-voltage electrical power from the grid.

It steps down the voltage to a much lower level suitable for the furnace (typically a few hundred volts).

It simultaneously provides very high current to meet the furnace’s heavy power demand.

 Purposes

To supply low-voltage, high-current power to electric furnaces

To ensure stable voltage and current under heavy load conditions

To protect furnace circuits from electrical faults

To withstand thermal and electrical stresses in harsh industrial environments

 Key Features

High current capacity with low voltage output

Heavy-duty insulation and cooling systems

Robust core and winding design for durability

Oil-immersed or dry-type variants available

Overload and short circuit protection capabilities  

Efficient thermal management with ONAN or ONAF cooling

 Benefits

 ✅ Ensures efficient and stable furnace operation ✅ Prolongs furnace lifespan by protecting electrical circuits ✅ Reduces downtime through reliable performance ✅ Handles extreme electrical and thermal stresses ✅ Improves overall energy efficiency in heating processes ✅ Customizable to fit various furnace types and capacities

 Applications

Steel and iron manufacturing plants

Metal melting and refining industries

Foundries and casting units

Heat treatment facilities

Electric arc furnaces (EAF) and induction furnaces

Glass manufacturing and ceramics industries

 Conclusion

Furnace Transformers are indispensable for industries relying on electric heating processes. Their ability to deliver high current at low voltage safely and reliably ensures optimal furnace performance, helping industries achieve quality production and energy efficiency under demanding conditions.

Company Details:

📍 Company Name: Padmavahini Transformers 🌐 Website: Padmavahini Transformers 📞 Contact No: +91 99430 49222 📧 Email: [email protected] 📍 Address: S. F. No. 353/1, Door No. 7/140, Ruby Matriculation School Road, Keeranatham, Saravanampatti, Coimbatore, Tamil Nadu - 641035, India