Three Dimensional Wound Iron Core offers up to 30% lower no-load loss compared with conventional laminated cores. Ideal for oil immersed transformers, dry type transformers, distribution transformers, and energy-saving power systems.
As modern power distribution systems demand higher efficiency, lower noise, and reduced operating costs, transformer core design plays a crucial role in overall transformer performance. The Three Dimensional Wound Iron Core is an advanced transformer core solution that significantly improves energy efficiency compared with traditional laminated core structures.
With up to 30% lower no-load loss, lower operating noise, balanced magnetic flux distribution, and enhanced reliability, three dimensional wound cores are widely used in distribution transformers, oil immersed transformers, dry type transformers, compact substations, and renewable energy power systems.
ZTELEC YUGUANG supplies high-quality 3D wound iron cores designed for high-efficiency transformers serving utility grids, industrial facilities, commercial buildings, and infrastructure projects worldwide.
A three dimensional wound iron core is manufactured by continuously winding high-quality silicon steel strips into a compact three-phase symmetrical structure. Unlike traditional stacked laminated cores with multiple joints, the 3D wound core forms a nearly seamless magnetic circuit, reducing magnetic resistance and minimizing no-load loss.
Its triangular three-leg structure provides more balanced magnetic flux paths, reduced vibration, and improved transformer efficiency, making it an ideal choice for energy-saving distribution transformers.
Compared with conventional laminated transformer cores, 3D wound iron cores can reduce no-load loss by up to 30%, improving long-term energy savings.
The continuous wound structure reduces magnetic flux distortion and vibration, resulting in significantly lower operating noise.
The three-phase symmetrical structure ensures uniform magnetic flux distribution and improved transformer operating stability.
The compact wound design improves structural integrity and enhances resistance to short-circuit impact and transportation vibration.
Lower loss and better magnetic performance help increase transformer efficiency while reducing heat generation and maintenance requirements.
| Item | Specification |
|---|---|
| Core Type | Three Dimensional Wound Iron Core |
| Core Material | High-Quality CRGO Silicon Steel |
| Core Loss Reduction | Up to 30% Lower Than Conventional Laminated Core |
| Frequency | 50Hz / 60Hz |
| Voltage Class | Up to 35kV and Above |
| Applicable Transformer Capacity | 30kVA – 2500kVA |
| Cooling Method | ONAN / ONAF / Dry Type Available |
| Insulation Class | Class A / Class F / Class H |
| Standards | IEC, ANSI, IEEE, GB, CE |
Three dimensional wound iron cores are widely used in various transformer applications requiring high efficiency and low noise:
Distribution transformers for utility substations and urban power grids
Oil immersed transformers for factories, industrial parks, and infrastructure projects
Dry type transformers for hospitals, airports, shopping malls, and office buildings
Renewable energy transformers for solar farms and wind power systems
Compact substations and prefabricated substations
Rural and urban public utility power distribution networks
As a professional transformer manufacturer and power equipment supplier, ZTELEC YUGUANG has strong expertise in transformer core design, transformer production, and international project support.
We provide customized three dimensional wound iron core solutions based on transformer capacity, voltage level, energy efficiency requirements, and international standards.
Our advantages include:
Advanced automatic wound core production lines
Strict factory quality inspection and performance testing
OEM and customized transformer design support
Fast delivery for global utility and EPC projects
Export-standard packaging and complete technical documentation
Support for IEC, ANSI, IEEE, and GB standards
| Feature | 3D Wound Iron Core | Conventional Laminated Core |
|---|---|---|
| No-Load Loss | Lower | Higher |
| Operating Noise | Lower | Higher |
| Magnetic Flux Distribution | Balanced | Less Uniform |
| Mechanical Strength | Higher | Standard |
| Energy Efficiency | Excellent | Standard |
| Maintenance Requirement | Lower | Higher |
Looking for high-efficiency transformer cores for your next distribution transformer project?
ZTELEC YUGUANG supplies premium three dimensional wound iron cores for transformer manufacturers, utilities, EPC contractors, and industrial power projects worldwide.
Send us your transformer specifications including capacity, voltage class, standards, and project requirements. Our engineering team will provide professional technical support and fast quotation service.
Email: sales@ztelecgroup.com
WhatsApp: +86 186 9586 7837
ZTELEC Yuguang Electric Technology, founded in 2014, builds on state-owned industrial expertise to deliver reliable power solutions worldwide.
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