Wound Transformer Core

1. Superior Magnetic Performance

The core is wound along the best magnetic conductivity direction of grain-oriented silicon steel, which fully utilizes the superior magnetic performance of grain oriented silicon steel and exhibits small magnetic circuit distortion. Therefore, the no-load loss and no-load current of wound transformer cores are smaller than those of laminated transformer cores (the laminated core has lamination seams, which will cause magnetic circuit distortion). Generally, under the same conditions, the no-load loss of the wound transformer core is reduced by 7%~10% compared with the laminated transformer core; the no-load current can be reduced by 50%~75%.

Besides, the winding technique also allows for a more uniform distribution of magnetic fields, which in turn reduces eddy current losses and improves the core’s efficiency.

2. Compact Design

The core can be more compact than traditional lamination designs (like shell type transformer cores), allowing for use in smaller and lighter transformers, which is beneficial in applications with space constraints.

3. Enhanced Performance

The core can offer improved performance in terms of stability and response to varying load conditions, especially in high-frequency applications.

4. Lower Noise Levels

It tends to operate at lower noise levels compared to conventional transformer cores, making them suitable for sensitive environments. For example, a transformer using the wound core can reduce noise by 5~10 dB.

5. High Efficiency

The close coupling between the windings and the core allows for efficient magnetic flux transfer, leading to lower losses and higher efficiency in power conversion.

6. Easy Fabrication

They use 75% fewer components than equivalent stacked cores. Therefore, the time taken to assemble a wound core is dramatically reduced.

What’s more, no additional clamping or similar hardware needs to be used to complete core construction during production. Therefore, the production efficiency is 5 to 10 times higher than that of laminated cores.

7. Great Flexibility

The winding process can be easily adjusted to meet specific requirements, such as varying the number of turns or the type of material used.

8. Reduced Manufacturing Costs

The manufacturing process for wound cores can be more cost-effective in certain circumstances, particularly when producing high volumes.

9. Customizable

Wound transformer cores can be designed and manufactured to meet specific voltage and power requirements, providing flexibility for various applications.

Wound transformer cores can be found in various applications, including:

1. Transformer Manufacturing: primarily used in the manufacturing of various transformers, including power transformers, current transformers, distribution transformers, isolation transformers, auto-transformers, instrument transformers, etc.

2. Power Supply Units: used in isolated power supplies for electronic devices due to their compact size and efficiency.

3. High-frequency Applications: suitable for switching power supplies and RF amplification circuits due to their ability to handle high frequencies effectively.

4. Electric Vehicles: used in some electric vehicle (EV) applications where the weight and thermal performance are critical.

5. Instrumentation: applied in sensor applications and instrumentation where precision is required.

6. Inductive Components: employed in inductors and chokes for power conditioning and filtering applications.

1. High-quality Silicon Steel Materials

We maintain long-term and stable direct supply relationships of silicon steel wafers with many well-known domestic and foreign steel mills, such as Baosteel, WISCO, and Shoudu Steel. Thus we can fully ensure the best quality of silicon steel chips — the main material of the transformer core.

2. Advanced Automatic Production

Silicon steel adopts the international advanced automatic intelligent production line processing, with high processing precision, small burr, good flatness, and high efficiency, thus greatly shortening the delivery cycle.

3. Intelligent Manufacturing

No driving in the whole manufacturing process, and the intelligent workshop has constant temperature and humidity and remains dust-free. The whole process from raw materials to the finished iron core reduces the extra stress of silicon steel, reduces the manufacturing process coefficient of the iron core, and effectively ensures the product performance and quality.

4. Unique Processing Method

We adopt unique full-sequence lamination methods, advanced processes, and equipment, which have a remarkable effect on energy saving and environmental protection of products.

Besides, the clam parts are made of high strength steel, formed by numerical control bending. Compared with groove steel, they have mechanical strength, more accurate size and positioning, and smooth and beautiful appearance’s surname.

5. Complete Quality Assurance System

Quality is a core value at GNEE EC. We conduct factory acceptance testing (FAT), type testing, and third-party inspection tests to ensure excellence. We also conform to ISO 9001:2015, AS 9100, and AS 9003 quality management standards for all our transformer core products. And we have advanced CMM equipment to inspect final products.

6. Favorable Price

Our company’s product price is in the middle level of the industry and is famous for its high-cost performance. Welcome to consult us at any time and we will give you the most suitable quotation.

7. Timely Delivery Capability

GNEE EC has a complete logistics system. We can provide transportation services including container, break bulk, air transport, rail transport, warehousing, and international combined transport.

8. Professional Customization Solution

GNEE EC supports impeccable customization services. The functions of the product can be customized according to the drawings of customers. So far, we have provided high-quality customized solutions in many fields.

9. 24/7/365 Immediate Service & Support

No matter where or when it’s needed, the GNEE EC team is ready and available to help you. Transformer cores are what we do best and nothing can stop us from delivering top-tier service and support each time.

No matter your project is large or small, we hope to get your inquiry!