Distributed gap wound core for Pole Mounted Transformers
Oct 16, 2025
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Distributed gap wound core
Distributed gap wound core is a type of core used in pole-mounted transformers. It is a variation of the shell-type core, where the windings are distributed along the core with gaps between them. This design helps to reduce losses and improve the performance of the transformer. Distributed gap wound cores are often employed in high-power distribution transformers.
The advantage of a distributed gap wound core is that it helps to reduce losses and improve the performance of the transformer. The gaps between the windings help to minimize eddy current losses and reduce the leakage flux, resulting in higher efficiency. This type of core also provides better cooling and allows for easier maintenance and repair of the windings.
Additionally, distributed gap wound cores are often used in high-power distribution transformers, making them suitable for applications requiring higher power handling capabilities.
The materials commonly used for distributed gap wound cores in pole-mounted transformers are typically laminated steel or amorphous alloy. Laminated steel is a traditional choice due to its low cost, excellent magnetic properties, and easy availability.
Amorphous alloy, on the other hand, is a more advanced and efficient material that offers lower core losses and improved energy efficiency. Manufacturers may choose either of these materials based on their specific requirements and cost considerations.
The key points for distributed gap wound cores are as follows:
- Distributed gap
In distributed gap wound core transformes, the core is divided into multiple sections with small air gaps distributed across the core structure. These gaps help to control the magnetic flux distribution and reduce the core losses.
- Core construction
The core in distributed gap wound core transformers is usually made of laminated sheets of magnetic material, such as silicon steel. The distributed gap design allows for efficient cooling of the core and minimizes eddy current losses.
- High efficiency
The distributed gap wound core design offers high efficiency due to reduced magnetic flux leakage, improved magnetic coupling between the windings, and controlled flux distribution. This makes them suitable for appliciations that require
- Size and weight
Distributed gap wound core tranformers are generally smaller and lighter compared to other types of transformers with similar power ratings. The compact design makes them suitable for space-constrained applications.
- Low noise levels
The distributed gap design helps to minimize vibrations and noise generated during transformer operation, resulting in quieter performance.
- Suitable for high-frequency applications
Distributed gap wound core transformers are often used in high-frequency applications, such as power electronics, renewable energy systems, and telecommunications. The distributed gap design helps to reduce core losses at high frequencies.
Overall, distributed gap wound core transformers offer improved efficiency, reduced losses, compact size, low noise levels, and suitability for high-frequency applications. However, their selection depends on the specific requirements and priorities of the application.
Market trends for pole-mounted distribution transformers:
1. Increasing demand for renewable energy: With the global shift towards clean and sustainable energy sources, there is a growing demand for transformers to support renewable energy generation, such as solar and wind power.
2. Smart grid integration: The integration of smart grid technologies in power transmission and distribution systems is driving the demand for transformers that are capable of handling the increased data communication and automation requirements.
3. Energy efficiency and sustainability: There is a growing focus on energy efficiency and reducing environmental impact. As a result, there is an increasing demand for transformers that are designed to be more energy efficient and comply with sustainability standards.
4. Digitalization and IoT integration: The adoption of digital technologies and the Internet of Things (IoT) in the transformer industry is driving the development of smart transformers that can monitor performance, provide real-time data, and enable remote diagnostics and maintenance.
5. Integration of renewable energy storage: As energy storage technologies continue to evolve, there is a growing need for transformers that can efficiently integrate renewable energy storage systems, such as batteries, into the power grid.
Distributed Gap Wound Core specifications
| Size (mm) |
Cross-sectional area(mm²) |
Input current (A) | Output power (mW) | No-load voltage (V) |
| 55*65*5 | 25 | 10 | 25.6 | 5.19 |
| 55*75*10 | 100 | 5 | 45 | 8.6 |
| 55*75*12 | 120 | 5 | 54 | 10.3 |
| 55*78*12 | 144 | 5 | 52 | 12.5 |
| 48*68*15 | 150 | 5 | 49 | 9.64 |
| 55*75*20 | 200 | 3 | 40 | 8.1 |
| 86*107*20 | 210 | 5 | 72 | 8.0 |
| 55*78*28 | 336 | 5 | 118 | 14.1 |
| 76*106*27 | 405 | 5 | 88 | 11.7 |
| 64*106*20 | 420 | 5 | 163 | 19.5 |
| 58*89*40 | 620 | 5 | 200 | 18.4 |
Performance: We can choose the relevant material to satify customers' demands of different quality.
Cores with other specifications can be provided concerning to customer demand.
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