As a professional rectifier transformer manufacturer, we supply robust 110kV oil immersed rectifier transformer and oil immersed regulating rectifier transformer. This heavy-duty transformer rectifier unit is built for electrolysis, metal smelting and DC transmission with stable DC output and strong harmonic suppression. Get your quotation.
This 110kV oil immersed regulating rectifier transformer is a heavy-duty oil immersed rectifier transformer with grey painted welded steel tank, conservator oil tank mounted on the top side, robust base skid for lifting and transportation.
The core and coil adopt high-grade silicon steel sheet and special multi-phase shift winding design, immersed in insulating mineral oil, with ONAN / ONAF / OFAF cooling modes.
As a high voltage rectifier transformer, it converts high voltage AC power from grid to precise controllable DC power.
This transformer rectifier unit is custom built for heavy non-linear industrial loads such as electrolysis, metal refining, smelting, traction power and DC transmission.
Our company is a reliable rectifier transformer manufacturer, capable of customized voltage class, pulse number, tap changer and winding configuration.
Compared with generic transformers, our oil immersed regulating rectifier transformer withstands heavy harmonic current, high short-circuit force and continuous 24-hour heavy load operation, with low stray loss and long service life, bringing excellent total cost performance for large industrial projects.
Key Features & Advantages
Oil immersed regulating design, 110kV high voltage grade, robust welded steel tank construction
Professional phase-shift winding technology, 6/12/24 pulse options, effectively suppress grid harmonics and improve power factor
Support on-load / off-circuit tap changer for wide-range precise DC voltage regulation
Optimized insulation and electromagnetic shielding, strong ability to resist short-circuit impact
Specially engineered for nonlinear heavy loads, stable continuous operation for electrolysis and smelting lines
Multiple cooling modes available: ONAN, ONAF, OFAF to adapt different site environment
Full customization of valve-side winding, current and pulse scheme. As a rectifier transformer manufacturer, we tailor each transformer rectifier unit for client project requirements
Low stray loss, reliable sealing structure, less maintenance workload
Specifications & Parameters
| Category | Specification / Description |
| Product Name | 110kV Oil Immersed Regulating Rectifier Transformer |
| Product Type | Oil Immersed Rectifier Transformer |
| Rated Line Side Voltage | 110kV (10kV~110kV optional) |
| Voltage Regulation Range | 5% ~105% rated voltage, customizable |
| Regulation Type | On-load Tap Changer / Off-circuit Tap Changer |
| Pulse Number | 6,12,24 pulses or higher |
| Cooling Method | ONAN, ONAF, OFAF |
| Tank Material | Welded steel plate, grey anti-corrosion painting |
| Core Material | High permeability grain-oriented silicon steel |
| Application | Electrolysis, metal smelting, traction power, DC transmission, VFD heavy drive system |
| Standards | IEC 60076, IEEE, GB |
Packaging, Warranty & Certifications Packaging：
This oil immersed regulating rectifier transformer is assembled in heavy-duty welded steel tank, filled with dry nitrogen for long-distance sea transportation. Conservator, radiators, bushings and control cabinets are separately packed in solid wooden crates. The whole transformer is mounted on heavy load skid base for lifting and shipment. All spare parts and technical documents are packed separately to prevent transit damage.
Quality Assurance & Warranty：
18 months warranty after shipment or 12 months after commissioning, whichever comes first. The warranty covers manufacturing defects, excluding damage caused by improper installation, overload and wrong operation. We provide lifetime remote technical support for this high voltage rectifier transformer and transformer rectifier unit.
Testing & Documentation:
As a professional rectifier transformer manufacturer, our oil immersed rectifier transformer complies with IEC 60076, IEEE and GB standards. We can provide full set of factory test reports, construction drawings and technical datasheets. Third-party inspection before delivery is acceptable.
Use Scenarios
Electrochemical Electrolysis & Chlor-Alkali Production
HVDC & DC Transmission Converter Station
Large Variable Frequency Motor Drive Systems
Ordinary power transformers are designed for clean AC loads. As a professional rectifier transformer manufacturer, our oil immersed rectifier transformer is specially optimized for nonlinear, harmonic-rich rectifier loads. This high voltage rectifier transformer has reinforced winding insulation, phase-shift design and anti-short-circuit structure, built to meet the unique demands of rectification duty.
Yes. We can customize rated voltage, pulse number, tap changer mode, valve-side current and winding configuration according to your technical specification. The oil immersed regulating rectifier transformer can be tailored for electrolysis, smelting, traction or DC transmission projects. Please share your datasheet for quotation.
We offer ONAN, ONAF, OFAF cooling methods. Selection depends on your site ambient temperature, altitude and load requirements. Our engineer will recommend the most cost-effective cooling solution for your transformer rectifier unit.
We adopt phase-shift multi-pulse winding design inside the oil immersed regulating rectifier transformer. Harmonic currents offset each other internally, lowering harmonic feedback to the grid and improving the system power factor. This is one core advantage of our oil immersed rectifier transformer.
As a rectifier transformer manufacturer, we supply complete factory test reports, outline drawings, wiring diagrams, operation manuals and material certificates. Third-party inspection before shipment is acceptable.
Warranty is 18 months after shipment or 12 months after commissioning (whichever comes first). We provide lifelong remote technical guidance. Our engineers can be arranged for on-site commissioning guidance for this transformer rectifier unit.
