Special Transformer

Steelmaking Eelectric Arc Furnace Transformer

Brand: HENGFENGYOU
Series: HJSSP
USES: Furnace transformer
Country of origin: China
Terms of payment: L/C, T/T, Western Union, Paypal, Money Gram
Certification: ISO9001、CB、CE、KEMA

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Steelmaking Eelectric Arc Furnace Transformer

Product Feature

Hengfengyou steelmaking electric arc furnace transformer is a special transformer designed and manufactured according to the special requirements of electric furnace steelmaking production for power supply. It is specially used for smelting excellent steel, alloy steel and aluminum silicate refractory fiber.
In addition to the characteristics of ordinary transformer, electric arc furnace transformer should also meet the special requirements of steel-making process, have certain overload capacity and short-circuit resistance mechanical strength. The regulation mode of electric arc furnace transformer is divided into on load voltage regulation and non excitation bump voltage regulation. The electric arc furnace transformer with on load voltage regulation does not have series reactor. The structure of arc furnace transformer without excitation, bump and voltage regulation can be divided into two types: with series reactor and without series reactor. Both structures can change the impedance under the highest secondary voltage. The former changes the impedance by inputting and cutting off the series reactor, while the latter changes the impedance by changing the connection mode of the high-voltage winding of the arc furnace transformer itself.

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- Authoritative certification: ISO9001、CE、CCC、COC、UL、CSA, etc
- Perfect SQA quality management system and patented technology to ensure high quality products
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Steelmaking Eelectric Arc Furnace Transformer FAQ

What is the primary function of an electric arc furnace (EAF) transformer?
The EAF transformer steps up or steps down voltage to provide the high current needed for melting scrap metal in the electric arc furnace.
Why is cooling crucial for EAF transformers?
EAF transformers handle high loads, generating significant heat. Proper cooling (oil or forced air) ensures efficiency and prevents overheating damage.
How does an EAF transformer differ from a standard power transformer?
EAF transformers are designed for frequent load fluctuations, high short-circuit currents, and rapid temperature changes, unlike standard transformers.
What are the common failure modes of EAF transformers?
Common failures include insulation degradation, winding damage from thermal stress, and mechanical wear due to frequent load cycling.
How often should maintenance be performed on an EAF transformer?
Regular inspections (oil testing, cooling checks) should occur every 6–12 months, with detailed maintenance during furnace relining.
What are the key parameters to monitor in an EAF transformer?
Monitor oil temperature, winding temperature, voltage/current stability, cooling efficiency, and dissolved gas analysis (DGA) for faults.
Can EAF transformers be repaired, or must they be replaced after failure?
Many failures (e.g., damaged windings, bushings) can be repaired, but severe core damage may require replacement.
What safety features are critical for EAF transformers?
Overload protection, pressure relief devices, fault detection systems, and fire-resistant fluids are essential for safety.
How does voltage regulation affect EAF transformer performance?
Precise voltage control ensures stable arc formation and energy efficiency during melting, reducing electrode wear.
What advancements are improving EAF transformer reliability?
Innovations like real-time monitoring sensors, advanced cooling systems, and robust insulation materials extend lifespan and performance.