Amorphous alloy oil-immersed transformer
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Oil-immersed transformer with 3D wound core
Dry-type transformer
Transformer core
Oil-immersed transformer
Box-type substation
High and low voltage power distribution cabinets
Silicon steel
The 3D wound-core transformer is an energy-efficient power transformer that innovatively redesigns the laminated magnetic circuit structure and three-phase layout of traditional power transformers. This results in optimized performance characteristics, such as a fully symmetrical three-phase magnetic circuit, significant energy savings, greatly reduced noise levels, enhanced heat dissipation and overload capabilities, and a compact, space-saving design.
Product Details
DETAIL
The 3D wound-core transformer is an energy-efficient power transformer that innovatively redesigns the traditional laminated magnetic circuit structure and three-phase layout. This results in optimized performance, including perfectly balanced three-phase magnetic circuits, significant energy savings, greatly reduced noise, superior heat dissipation and overload capabilities, and a compact, space-saving design.
Product Features
Balanced Magnetic Circuits
The three-phase magnetic circuits of the 3D wound core are equal in length and minimized, ensuring balance across the three phases.
Excellent Energy Efficiency
The 3D wound core is seamless, eliminating high-energy-loss zones and fully utilizing the high magnetic permeability of the core material. The direction of magnetic flux aligns perfectly with the grain orientation of the silicon steel sheets, drastically reducing no-load losses and no-load current.
Low Noise
The silicon steel strips within each core frame are tightly wound, and the three frames are bonded into a solid, integrated structure. The magnetic permeability direction of the strips aligns perfectly with the magnetic circuit path. With minimal operational vibration and a closed-loop core structure free of air gaps, noise levels are minimized to the greatest extent possible.
High Short-Circuit Resistance
The transformer windings feature a circular cross-section, offering high compressive strength during short-circuit events. The clamping structure consists of a welded, triangular integrated frame, ensuring high stability and robust overall structural integrity.
Low Electric and Magnetic Field Intensity
The compact, symmetrical coil structure of the 3D wound core reduces stray magnetic fields surrounding the transformer.
Industry Solutions
Applications · Empowering Industries
SCENE 01
01 Power Engineering
Hebei Qishun Power Equipment Co., Ltd. transmission and distribution equipment is widely used in State Grid, local power projects, and urban distribution systems, providing stable and reliable power support for transmission, transformation, and distribution projects. The products feature stable operation, low loss, and high safety for long-term continuous operation.
1/5
SCENE 02
02 New Energy
With advanced green technology, Qishun Power provides photovoltaic and wind power prefabricated substations with high efficiency, harmonic resistance, and strong environmental adaptability. Our equipment fits green power systems, integrates with solar, wind, and supporting transmission systems, and improves power stability for greener, smarter new energy projects.
2/5
SCENE 03
03 Industrial Manufacturing
Backed by lean manufacturing across the full chain, Qishun Power provides heavy-duty industrial transformers and distribution equipment with strong durability, stable heat dissipation, and reliable supply. They match high-load, continuous operation and support stable production in complex industrial workshops.
3/5
SCENE 04
04 Infrastructure
With standardized mass production, Qishun Power provides transformers and integrated distribution solutions with stable structure, strong adaptability, and low maintenance. Built to strict engineering standards, they fit airports, high-speed rail, municipal projects, and large industrial parks for stable, long-lasting operation.
4/5
SCENE 05
05 Overseas Projects
With an international custom development system, Qishun Power provides transmission and distribution equipment matched to multi-country voltage standards and strict certification requirements. Our globally adaptable, cost-effective quality supports overseas industrial parks, cross-border power construction, and international new energy projects, with professional export and logistics service.
5/5
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FAQ
Are you a factory or a trading company?
Manufacturing Facility. Headquartered in Gaocheng District, Shijiazhuang City, Hebei Province, the company operates a 20,000-square-meter standardized workshop. Integrating R&D, design, production, and foreign trade, it maintains control over quality and costs right from the source.
Is product customization (OEM/ODM) available?
We can accommodate this. Our experienced technical team offers precise customization in strict accordance with your technical drawings, local grid standards (such as IEC and IEEE/ANSI), and specific environmental requirements.
How long is the warranty period? What kind of after-sales support is provided?
All units undergo rigorous testing before leaving the factory. We offer a warranty period of 12 to 24 months (depending on the model), along with lifetime 24/7 remote technical support and online troubleshooting.
What advantages do your transformer cores and silicon steel offer?
We independently process high-performance silicon steel and manufacture transformer cores in-house. Controlling the process at the source ensures excellent magnetic permeability, significantly reducing transformer no-load losses (delivering superior energy efficiency) and operating noise.
How do you choose between dry-type and oil-immersed transformers?
Dry-type (including open-ventilated): Air-cooled, flame-retardant, and maintenance-free; suitable for indoor environments with high safety requirements, such as shopping malls, hospitals, and subways. Oil-immersed: Cooled by insulating oil, offering excellent heat dissipation and strong overload capacity; suitable for industrial and mining enterprises, heavy-industry power grids, and harsh outdoor environments—offering the best cost-performance ratio.
Are box-type substations suitable for outdoor new energy projects such as photovoltaic power generation?
They are ideally suited for the application. Our PV combined substations and box-type substations feature high IP ratings—offering protection against weather, dust, and corrosion—along with excellent thermal insulation, and are specifically designed for harsh outdoor environments and integration with new energy power grids.
What are the safety standards for high- and low-voltage power distribution cabinets?
Designed and manufactured in strict accordance with international standards such as IEC. Equipped with reliable mechanical interlocking, arc-flash protection, and intelligent monitoring modules to ensure operator safety and stable system operation.
How should heavy equipment be packaged for long-distance ocean transport?
Sturdy, seaworthy packaging is used. The equipment is securely fastened to steel or heavy-duty wooden pallets, wrapped internally in moisture-proof vacuum film, and protected by an export-grade wooden crate; professional reinforcement during packing ensures full protection against impact during transit.
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Xiaochangan Industrial Park, Chang'an Town, Gaocheng District, Shijiazhuang City, Hebei Province
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