Description
Submerged Arc Furnace Transformer
High-Intensity Power Supply Solutions by HANI Metallurgy
The Electrical Heart of Modern Smelting
The Submerged Arc Furnace Transformer is the most critical electrical component in any metallurgical facility, responsible for converting high-voltage grid power into the high-current, low-voltage supply required for smelting. As a specialized SAF Transformer, it is engineered to withstand extreme harmonic distortion, frequent short circuits, and continuous heavy loads. At HANI, we have developed world-class submerged arc furnace transformer solutions that prioritize high energy efficiency and exceptional thermal stability. Our furnace power supply systems utilize advanced copper-winding technology and multi-stage oil cooling to ensure that the intense energy demands of ferroalloy and silicon metal production are met without interruption.
HANI’s Submerged Arc Furnace Transformer is designed for the most rigorous industrial duty cycles. Whether providing power for a 12.5 MVA or a 50 MVA facility, the SAF Transformer must deliver a stable secondary voltage under varying material impedance. Our furnace power supply units are equipped with On-Load Tap Changers (OLTC) that allow for precise voltage adjustments without stopping the smelting process. By utilizing our transformer technology, producers can achieve higher power factors and significantly lower electrical losses in the short-net system. As a leading provider of electrical engineering for metallurgy, HANI provides Submerged Arc Furnace Transformer solutions that are the industry benchmark for reliability and long-term ROI.
Technical Parameters of HANI SAF Transformers
| Model Specification | Unit | HANI-TX-12.5 | HANI-TX-25.5 | HANI-TX-50.0 |
|---|---|---|---|---|
| Rated Capacity | MVA | 12.5 | 25.5 | 50.0 |
| Secondary Voltage Range | V | 110-240 | 140-320 | 180-450 |
| Secondary Current (Max) | kA | ≥40 | ≥65 | ≥110 |
| Efficiency (Full Load) | % | ≥98.8 | ≥99.1 | ≥99.4 |
The Electrical Science of High-Current Smelting
The performance of a Submerged Arc Furnace Transformer is determined by its reactance management and cooling capacity. In an SAF Transformer, the extreme secondary current (often exceeding 100 kA) generates intense magnetic fields that can cause localized eddy current heating in the transformer tank. HANI’s submerged arc furnace transformer utilizes specialized shielding and high-purity electrolytic copper to minimize these losses, ensuring that more power reaches the furnace power supply terminals.
Transformer Engineering Principles:
1. Harmonic Filtering: Integrated designs to handle the non-linear loads of the arc.
2. OFAF Cooling: Oil-Forced Air-Forced systems for rapid heat dissipation in the SAF Transformer.
3. Dynamic Stability: Robust internal bracing to withstand electromagnetic forces during short-net “shuddering”.
Scientific facts show that a 1% improvement in transformer efficiency can save over $100,000 in electricity costs annually for a 33 MVA furnace. HANI’s Submerged Arc Furnace Transformer ensures that your submerged arc furnace transformer is optimized for the highest possible power factor. Our furnace power supply solutions also include real-time gas-in-oil monitoring (DGA) to provide early warning of insulation degradation, ensuring 100% operational safety.
Key Advantages of HANI Power Supply Solutions
- Highest Thermal Reserves: Our SAF Transformer designs include a 20% overload capacity to handle peak production cycles without overheating.
- Advanced OLTC Integration: HANI’s submerged arc furnace transformer features vacuum tap changers for maintenance-free voltage regulation.
- Low Reactance Layout: Optimized terminal arrangements for the furnace power supply ensure the shortest possible path to the short-net.
Professional FAQ for SAF Transformers
Q1: What is the typical service life of a HANI Submerged Arc Furnace Transformer?
A: With HANI’s high-quality insulation materials and advanced OFAF cooling, our SAF Transformer units typically deliver a service life of 25 to 30 years in continuous furnace power supply duty.
Q2: How does HANI handle harmonic distortion in the transformer?
A: Our submerged arc furnace transformer utilizes a proprietary winding geometry and optional harmonic filtering modules to protect the internal core from the electrical “noise” generated by the furnace power supply arc.
Q3: Can the SAF Transformer be customized for specific altitude or humidity conditions?
A: Yes. HANI provides bespoke Submerged Arc Furnace Transformer designs for high-altitude plants (up to 4000m) and tropical environments with ≥95% humidity, ensuring stable furnace power supply everywhere.
Empower Your Smelting Facility with HANI
The Submerged Arc Furnace Transformer is the backbone of your production capacity. Partner with HANI for a high-intensity SAF Transformer solution that ensures reliability and energy savings today.
