Dry Type Phase-shifting Rectifier Transformers
Customized Solutions
Enhanced Safety & Durability
Reliable Compliance & Certifications
Superior Efficiency & Power Quality
Dry Type Phase-shifting Rectifier Transformers
Phase-shifting rectifier transformers are power transformers for multi-pulse rectification equipment. They are:
- Widely used in high-voltage inverters and high-power rectification systems.
- Applied to implement multiple technologies, harmonic pollution can be greatly suppressed.
- With 12 pulses, the DC ripple coefficient is greatly reduced, and the AC side harmonics are also greatly reduced.
Key Benefits:
No oil → Fire-safe & eco-friendly (dry-type design).
High efficiency (>95%) with forced air cooling.
Phase-shifting reduces harmonics (THD compliance).
Compact & suitable for indoor installation (IP00).
Applications of Dry Type Phase-shifting Rectifier Transformers
1. Industrial Rectification Systems
Used in electrolytic processes (e.g., aluminum smelting, chlor-alkali plants) to provide stable DC power with reduced harmonics.
Critical for high-current, low-voltage rectifier units in chemical and metallurgical industries.
2. Renewable Energy Integration
Enables efficient solar/wind power conversion by minimizing harmonic distortion in grid-tied inverters.
Supports multi-pulse rectification (12/24-pulse) to meet IEEE 519 harmonic standards.
3. Transportation Electrification
Power railway traction systems and EV charging stations with phase-shifted AC-DC conversion.
Reduces input current THD (<5%) in high-power DC fast chargers.
4. Data Centers & Telecom
Provides clean DC power for UPS systems and HVDC power distribution, improving energy efficiency.
5. Special Industrial Applications
Plasma cutting/LED manufacturing: Ensures precise current control with minimal ripple.
Mining/Offshore platforms: Rugged, oil-free design for hazardous environments
Dry Type Phase-shifting Rectifier Transformers Technical Specifications
|
Parameter |
Specification / Requirement |
|
Rated Capacity |
Up to 10 MVA |
|
Structure Type |
VPL structure |
|
Fire Resistance |
Fire-resistant materials |
|
Insulation System |
UL1446 insulation system |
|
Certification Class |
Certified for H class (180°C) or R class (220°C) |
|
Compliance Standards |
IEC 60076-11, IEC 61378-1, UL 1446 |
|
Rated Primary Voltage |
3 kV – 13.8 kV |
|
Primary Voltage Tolerance |
±10% |
|
Rated Secondary Voltage |
480 V – 750 V |
|
Rated Frequency |
50 Hz / 60 Hz |
|
Efficiency |
>95% |
|
Cooling Method |
Forced air-cooled |
|
Altitude Limit |
≤1000 m above sea level (a.s.l.) |
|
Maximum Humidity |
95% |
|
Protection Class |
IP00 (indoor mounting) |
|
Insulation Class |
Class H (Class C optional) |
|
Design Method |
Three-phase, dry-type iron core, phase-shifting structure |
|
Tap Range |
±5% |
|
Number of Secondary Windings |
3 – 10 groups |
|
Winding Material |
Copper / Aluminum |
|
Terminals |
Copper busbars |
Why Choose LTEC's Dry Type Phase-shifting Rectifier Transformers?
LTEC – Powering Your Systems with Innovation!
High Efficiency and Performance
These transformers typically achieve an efficiency of ≥ 98%, ensuring minimal energy loss during voltage conversion.
Phase-shifting technology reduces harmonic distortion, improving power quality and compatibility with sensitive industrial equipment.
Customization and Flexibility
Manufacturers offer tailored solutions for rated capacities (e.g., 500VA to 2000KVA) and input/output voltage configurations (e.g., 110V to 220V or 127V to 220V) to meet diverse application needs.
Robust Safety and Reliability
Dry-type designs eliminate fire risks associated with oil-cooled transformers, making them safer for indoor use.
Features like insulation level H and 3000V withstand voltage strength ensure durability in demanding environments
Certifications and Compliance
Products often hold international certifications (e.g., UL, CE, ISO 9001/14001), guaranteeing adherence to quality and environmental standards.
Comprehensive Support
Providers like Wapower offer end-to-end services, including pre-sale design, after-sale maintenance, and technical training, ensuring long-term operational support.
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