Professional rectifier transformer & transformer rectifier supplier offering custom high‑voltage oil‑immersed rectifier transformers. Built for industrial AC‑to‑DC conversion, ideal for green hydrogen, electrolysis, chlor‑alkali and non‑ferrous smelting with robust reliable solutions.
Product Advantages
Structure & Material
Three-phase three-limb iron core. High-quality copper windings, heavy-duty welded steel tank. The tank surface adopts grey anti-corrosion paint coating for outdoor installation. The tank body is equipped with inspection ladder, temperature gauge, control cabinet, oil conservator, pressure relief valve and oil drain valves for easy operation and maintenance.
Superior performance
High temperature resistance, low noise, high overload capacity, no oil leakage, no core lifting required for routine operation, minimal maintenance. It improves electrolysis efficiency and reduces overall power consumption.
Flexible winding design
Each core limb can be fitted with two or more sets of high & low voltage coils. Multiple low-voltage coils can run independently or in parallel. High short-circuit impedance between windings ensures stable and safe multi-channel output.
Flexible operation modes
Support single unit independent operation or parallel operation of multiple units. It adapts to complex working conditions, suitable for AC-AC variable frequency speed regulation for steel rolling mills and DC motor power supply after rectification.
Wide application
Mainly used in electrochemical industry, non-ferrous metal electrolysis, chlor-alkali industry, water electrolysis for green hydrogen production from solar, wind and hydropower renewable energy.
Specifications & Parameters
Specifications are customizable to meet exact project needs. Typical technical parameters for our oil immersed rectifier transformer include:
| Category | Specification / Description |
| Model | ZHS-6000/10 |
| Rated Capacity | 6000 kVA |
| Rated Voltage | 10000 / 600 V |
| Rated Current | 346.4 A / 5773.5 A |
| Phase / Frequency | 3 Phase, 50 Hz |
| Vector Group | Dy11 |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Insulation Level | LI75 AC35 / AC5 |
| Tap Positions | 5 tap positions: 10500V,10250V,10000V,9750V,9500V |
| Impedance Voltage | 7.23 % |
| No-load Loss | 5155 W |
| Load Loss | 46212 W |
| Tank & Color | Welded steel tank, industrial grey anti-corrosion coating |
| Standard Compliance | GB/T 18494.1, GB/T 18494.3 |
| Installation Condition | Outdoor type |
| Customization available: We, as your rectifier transformer manufacturer & transformer rectifier supplier, can tailor high voltage rectifier transformer according to your required capacity, voltage, cooling method and working scenarios. | |
Packaging, Warranty & Certifications Packaging：
The high voltage rectifier transformer will be fixed on the base skid for sea shipment. External protective package, reinforced fastening for long-distance ocean transport. All accessories, control boxes and spare parts are packed separately in plywood cases. The product dimension is based on customized capacity and design.
Warranty：
12 months warranty after on-site commissioning or 18 months from the date of shipment, whichever comes first. Lifelong technical consultation and spare parts support.
Certifications & Testing：
Our rectifier transformer products are manufactured complying with national GB standards. Full factory test reports will be supplied before delivery. As a reliable transformer rectifier manufacturer and rectifier transformer supplier, we support third-party inspection upon customer request.
Use Scenarios
Power Supply for Steel Mill DC Motor Drives
In steel manufacturing plants, the employment of DC motor drives demands consistent, high-quality DC power. The rectifier transformer supplies this power by converting high-voltage AC to stable DC current vital for controlling rolling mill motors and drive systems. Its robust mineral oil cooling and multi-winding configurations enable continuous operation under severe industrial conditions while adhering to IEC 60076 standards. Integration into existing motor control centers enhances overall plant reliability and permits scalability as production demands evolve.
Integration with AC-DC Variable Frequency Drive Systems in Metallurgical Applications
This transformer rectifier unit plays an essential role in AC-DC variable frequency drive systems supporting metallurgical processes, where precise speed and torque control are requisite. By providing clean and harmonic-minimized DC power through multi-pulse rectification compatibility, it ensures compliance with power quality regulations and reduces electromagnetic interference. The unit fits seamlessly within complex electrical panels, providing scalable power transformation solutions tailored for harsh environments typical of steel plant operation, boosting process efficiency and facilitating preventive maintenance schedules.
What materials are used in your Oil Immersed Rectifier Transformer?
Our rectifier transformer features high-conductivity copper windings and a core made of cold-rolled grain-oriented silicon steel. The robust mineral oil insulation and ONAN cooling system enhance durability and electrical performance under heavy industrial loads.
Can you customize the transformer specifications for specific industrial requirements?
Yes, we offer tailored options for rated capacity, primary and secondary voltages, winding configurations, and pulse compatibility to suit your project needs. As experienced rectifier transformer manufacturers, we ensure each unit matches your steel mill’s precise power demands.
How do you ensure the reliability of your transformer for steel mill DC motors?
We design our transformer with a compact three-phase core, multi-group low voltage windings, and high short-circuit impedance, all compliant with IEC 60076 and GB/T standards. These features secure stable operation and low losses, critical for demanding DC motor and AC-DC drive applications.
What support do you provide regarding installation and delivery times?
Typically, delivery ranges from 8 to 16 weeks depending on your customized transformer rectifier specifications. Our technical team offers guidance to ensure smooth installation and integration into your existing steel mill power system for optimal performance.
