Newtranstech's high-performance Medium Frequency Furnace Rectifier Transformer, also known as Transformer Rectifier Unit, a specialized rectifier transformer engineered to supply stable rectified DC power for medium frequency induction furnaces. As a dedicated rectifying transformer and one of the leading transformer rectifiers in the industry, it is specifically designed to handle the demanding shock-load characteristics of MF electric furnaces, delivering exceptional overload capacity, significantly reduced harmonic currents, and outstanding cooling performance.
This rectifier transformer supports 6-pulse or 12-pulse rectification systems, ensuring clean and reliable power delivery for metal melting, smelting, and casting applications in metallurgical plants. Built with premium materials, our transformer rectifiers feature flame-retardant, self-extinguishing, moisture-proof properties, and excellent heat dissipation. Their high mechanical strength and robust short-circuit resistance allow safe installation near the load center, minimizing cabling losses while maintaining superior efficiency.
When comparing rectifier vs transformer applications, this unit stands out as a true rectifier duty solution optimized for non-linear loads and harmonic-heavy environments typical of induction furnace operations. Standard operating conditions include ambient temperatures from -25°C to +40°C, altitude up to 1000m, and indoor installation. Custom designs are available to meet special voltage, pulse, or environmental requirements.
Buyers interested in industry market data often search for transformers and rectifiers share while evaluating high-performance rectifier transformers and transformer rectifier unit solutions like this one to optimize efficiency, reduce harmonics, and lower long-term operational costs in demanding foundry and steel plant environments.
Experience the reliability of advanced rectifier transformers and transformer rectifiers that power modern medium frequency induction melting systems with unmatched durability and performance. Contact us for tailored solutions that enhance your production efficiency.
Product Features
• Exceptional Overload Capability
Optimized for the intermittent heavy loads of medium frequency furnaces, supporting overloads up to 160% or more of rated capacity for reliable high-power melting operations.
• Minimal Harmonic Currents
Advanced multi-pulse design (6-pulse or 12-pulse) effectively suppresses harmonics (especially 5th and 7th), improving grid power quality and reducing interference with other equipment.
• Superior Cooling Performance
Enhanced heat dissipation structure combined with flame-retardant and moisture-proof materials ensures stable temperature control under continuous high-load conditions.
• Robust Mechanical Design
High mechanical strength, excellent short-circuit withstand capability, flame-retardant, self-extinguishing, and moisture-proof properties for durability in harsh foundry environments.
• Load-Center Installation Friendly
Compact and efficient design allows placement close to the furnace, reducing voltage drop and installation costs while integrating seamlessly as a Transformer Rectifier Unit with MF inverters.
• Energy Efficient & Reliable
Low no-load losses, low noise, high efficiency, and flexible configurations make it ideal for 100kW to 12000kW+ medium frequency induction furnace systems.
Specifications & Parameters
Typical technical parameters – fully customizable to meet specific project needs:
| Category | Specification / Description |
| Application | Dedicated rectifier power supply for medium frequency induction melting furnaces (100kW – 12000kW systems) |
| Rated Capacity |
500kVA – 12500kVA (common ratings include 800kVA, 2000kVA, 4000kVA, 6300kVA, etc.) |
| High Voltage Side | 6kV, 10kV, 11kV, 22kV, 33kV (with no-load or on-load tap changer, typical range ±5% or ±2×2.5%) |
| Low Voltage Side | 400V – 1250V (customized double secondary windings, e.g., 750V, 950V for 12-pulse operation) |
| Phases | Three-phase |
| Frequency | 50Hz / 60Hz |
| Vector Group | Dyn11, Yd11, Y0/Yd11, etc. (optimized for 6-pulse or 12-pulse rectification) |
| Cooling Method | ONAN (oil-immersed natural cooling) or forced air/water cooling for enhanced performance |
| Insulation Class | F-class or H-class |
| Pulse Number | 6-pulse or 12-pulse (extendable to 18/24-pulse for further harmonic reduction) |
| Impedance Voltage | Optimized according to capacity and application |
| Operating Conditions | Ambient temperature -25°C ~ +40°C, altitude ≤1000m, indoor installation |
| Winding Material | High-quality copper windings (all-copper design optional) |
| Other Features | Strong anti-short-circuit ability, low loss design. |
| Special requirements such as higher altitude, extreme temperatures, or custom voltages must be clearly stated at the time of ordering.. | |
Packaging, Warranty & Certifications Packaging：
Professionally packed in robust export-grade wooden crates or steel containers with full moisture-proof and shock-absorbing protection. Each unit undergoes rigorous factory testing and is shipped with complete test reports, quality certificates, and detailed operation & installation manuals.
Warranty：
Standard 18-month warranty from the date of shipment (free repair or replacement for manufacturing defects, excluding human-induced damage). Extended warranty options and customized terms are available upon request.
Certifications & Testing：
Compliant with GB/T, IEC, and other relevant international standards. ISO9001 quality management system certified. CE marking ,UL and additional export certifications can be arranged as required.
