Question 1

What is the difference between a Furnace Transformer and a Power Transformer?

Accepted Answer

A Furnace Transformer is specifically engineered for the harsh operating conditions of industrial furnaces — frequent short circuits, high secondary currents, wide voltage regulation, and continuous thermal stress. A standard power transformer is designed for stable load conditions and would fail rapidly in furnace duty service. Key differences include reinforced windings, higher short-circuit impedance, OLTC for continuous voltage adjustment, and robust clamping structures.

Question 2

What KVA range is available for Furnace Transformers from Tirupati?

Accepted Answer

Tirupati Transformers manufactures Furnace Transformers up to 5000 KVA, with primary voltage of 11 KV or 33 KV. Secondary voltage is customized to match your specific furnace electrode voltage requirements. Contact our engineering team for requirements outside this standard range.

Question 3

Can a Furnace Transformer handle short-circuit conditions during arc furnace operation?

Accepted Answer

Yes. Tirupati Furnace Transformers are specifically designed and tested to withstand the repeated short-circuit conditions that occur naturally during the arc ignition and melting phases of electric arc furnace operation. This is achieved through reinforced winding clamping, optimized impedance design, and robust mechanical construction — verified through factory short-circuit withstand testing per IS 2026 / IEC 60076.

Question 4

What type of cooling is used in Furnace Transformers?

Accepted Answer

Standard cooling configurations include Oil Natural Air Natural (ONAN) cooling. For higher duty applications or larger KVA ratings, Oil Natural Air Forced (ONAF) cooling with forced-air radiators is available. The cooling system is selected based on your furnace duty cycle, ambient temperature, and installation space.

Question 5

Do you supply Furnace Transformers with on-load tap changers?

Accepted Answer

Yes. All Furnace Transformer models are available with motor-operated on-load tap changers (OLTC), enabling continuous voltage adjustment under load — essential for maintaining arc stability and optimizing power input during the melting cycle.

Question 6

What is your delivery timeline for a Furnace Transformer?

Accepted Answer

Standard delivery for Furnace Transformers is typically 8 to 14 weeks from order confirmation, depending on KVA rating and customization requirements. Contact our sales team with your specifications for an accurate delivery schedule.

Question 7

Do you provide installation and commissioning support for Furnace Transformers?

Accepted Answer

Yes. Our Electrical Turnkey Projects team provides complete site installation, oil filling, pre-commissioning testing, and energisation support for all Furnace Transformers we supply — ensuring safe and reliable startup of your furnace installation.

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Top Furnace Transformer Manufacturers & Suppliers in Delhi NCR

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