Special Rectifier Transformer
Low Harmonic Distortion: Built-in phase-shifting technology reduces grid pollution and improves power factor.
Robust Short-Circuit Strength: Reinforced winding structure withstands high mechanical forces during short circuits.
Customizable Output: Tailored voltage and current ratings to match your specific rectifier circuit requirements.
Maintenance-Free Design: Dry-type insulation (H-class) ensures safe operation without oil leakage risks or regular fluid checks.
Standard transformers often fail to handle the specific demands of rectifier loads, such as DC bias and high harmonic content. Our Special Rectifier Transformer solves this. It is designed specifically to convert AC power to DC power efficiently, acting as the heart of your rectifier system.
Whether you are running an electrolysis plant, a traction substation, or a DC motor drive, this unit ensures stable voltage output. We use high-quality copper windings and vacuum pressure impregnation (VPI) to ensure the insulation system can handle the heat and stress of continuous rectification.
Unlike generic models, our design focuses on reducing harmonic interference. By increasing the pulse number (e.g., 12-pulse, 24-pulse), we minimize the impact on your main power grid. This means less downtime and better efficiency for your facility.
our Product Feature
High Conversion Efficiency
Optimized core materials and low-loss copper windings significantly reduce energy waste during AC to DC conversion, lowering your long-term operating costs.
Customizable Output Ratings
We tailor the secondary voltage and current to match your specific rectifier circuit. This ensures seamless integration with your electrolysis or DC drive systems.
Superior Short-Circuit Withstand
The reinforced winding structure and high-quality insulation easily handle the extreme mechanical forces and DC bias generated during abnormal power conditions.
System Integration & Advantages
Why this setup matters for your plant:
- Harmonic Isolation: The transformer acts as a buffer, keeping harmful harmonics away from your main power grid.
- Thermal Stability: Designed to handle the continuous heat generated by DC bias, preventing premature insulation failure.
- Grid Protection: Built-in impedance limits short-circuit currents, protecting both the transformer and your downstream rectifier equipment from severe damage.
Working Specification
| Specification | Details |
| Product Type | Dry Type Special Rectifier Transformer |
| Cooling Method | AN / AF (Air Natural / Air Forced) |
| Frequency | 50Hz / 60Hz |
| Vector Group | Dy11, Dyn11, or Customized |
| Insulation Class | Class F / Class H (180°C) |
| Tapping Range | ±2 x 2.5% or ±5% (on HV side) |
| Impedance Voltage | 4% - 8% (Customized based on short-circuit req) |
| Protection Class | IP00, IP20, IP23 |
| Winding Material | Copper / Aluminum |
Technical Considerations
Harmonic Mitigation
Rectifier loads naturally generate non-sinusoidal currents that pollute the power grid. We solve this by designing custom phase-shifting transformers. By increasing the pulse number (e.g., 12-pulse or 24-pulse), we significantly reduce harmonic distortion and improve your overall power factor.
Short-Circuit Stability
Rectifier systems face extreme mechanical forces during short circuits. Our windings are reinforced with high-strength materials and optimized structural support. This ensures the transformer easily withstands severe short-circuit currents without deformation or failure.
Advanced Cooling & Insulation
DC bias and continuous heavy loads generate intense heat. We use premium Class H (180°C) insulation materials combined with Vacuum Pressure Impregnation (VPI). Paired with efficient AN/AF cooling systems, this prevents hot spots and guarantees decades of safe, maintenance-free operation
Main Applications
- Heavy Industry & Chemical Processing
The core power supply for demanding processes like aluminum electrolysis, chlor-alkali plants, and zinc smelting. Our transformers handle continuous heavy loads and harsh environments, ensuring uninterrupted production and high yield rates. - Electric Traction & Transportation
Reliable AC to DC conversion for electric locomotives, metro systems, and mining railways. Designed to withstand frequent load fluctuations and severe vibrations, keeping your transit networks running safely and efficiently. - Industrial Power Management
Essential for large-scale industrial substations and heavy machinery. We provide stable, customized DC power for DC motor drives, welding equipment, and power management systems, protecting your critical infrastructure from grid instability.
FAQ
Q: What is the difference between a standard transformer and a rectifier transformer?
A: A standard transformer supplies AC loads. A rectifier transformer is designed to handle DC bias and harmonic currents generated by rectifiers. It has higher impedance and reinforced insulation to withstand the
heat and mechanical stress of converting AC to DC.
Q: Can you customize the output voltage and pulse number?
A: Yes. We customize the secondary voltage and connection mode (Star/Delta/Zigzag) to achieve the pulse number you need (6-pulse, 12-pulse, etc.) to filter out harmonics.
Q: Is this transformer suitable for outdoor installation?
A: Our standard dry-type units are for indoor use. However, we can provide an IP54 or IP65 protection enclosure to make it suitable for outdoor or harsh environments.
Hot Tags: special rectifier transformer, China special rectifier transformer manufacturers, suppliers, factory, dry type current transformer, dry power transformer, Low Voltage Industrial Transformer, dry type power transformer, encapsulated dry type transformer, dry type transformer supplier
You Might Also Like
Send Inquiry