Dry Type Phase-shifting Rectifier Transformer
Dry Type Phase-shifting Rectifier Transformers
With the development of modern power electronic, the technology of high voltage, big power frequency conversion speed regulation is getting more matured, many motor speed control mode has been changed in this direction. It adopts the phase shifting rectifier transformer as the core part of MV inverter, with nearly perfect sinusoidal wave, so there is no more the harmonic pollutions from LV converter. Moreover, you don't need to install the distribution transformers in the system.
Key Benefits:
Precision Angle Shifting:
Utilizing highly precise phase shift angle technology, the LTEC dry-type phase shifting rectifier transformer maintains balanced operation of multi-level inverter power units.
Forced Air Cooling (AF):
Even under high load conditions, our highly reliable cooling system ensures continuous operation without derating.
Flexible Voltage Support:
Our rectifier transformer supports a wide range of primary voltages from 3kV to 13.8kV, providing solutions for multiple medium-voltage standards worldwide.
Military-Grade Thermal Resilience:
Our phase shifting rectifier transformer features standard H-class (180°C) insulation materials (C-class optional), providing you with a higher thermal safety margin.
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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