Transformer Core
Your Professional Transformer Core Supplier
Hebei Hozee Electric Co., Ltd., a professional Chinese distribution transformer manufacturer registered in Shijiazhuang, Hebei, adheres to "Efficient, Intelligent, Green" and is led by founder/CTO Liu Yanchao (15+ years in transformers) and his team of senior engineers (avg. 8+ years, mastering IEC/GB standards).It provides customized solutions (for voltage, working conditions, load) to serve domestic industrial/new energy/grid upgrade markets and over 50 countries globally. Future-focused on tech innovation, aiming to support the global energy transition.
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Core Model: S-500/11-0.4
High Voltage: 11KV
Low voltage: 0.4 kV
Frequency: 50Hz
No-load loss ≤700W-4%
Designation of Silicon Steel... -
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Core material: oriented silicon steel
Core acceptance items: appearance, no-load loss, no-load current, noise
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Why Choose Us
Our Certificate
3 intelligent production lines with an annual production capacity of 500,000 kVA. It has passed ISO 9001 and ISO 14001 certifications, and the products comply with standards such as GB/T and IEC 60076.
Production Equipment
Our core equipment includes: slitting machines, horizontal shearing machines, horizontal shearing winding machines, and annealing furnaces; transformer equipment includes: foil winding machines, winding machines, drying furnaces, casting tanks, and transformer testing equipment.
Production Market
Our products are exported to countries along the "Belt and Road" such AS Southeast Asia, the Middle East, Latin America and Africa. They are adapted to different climatic conditions (such as tropical high humidity, desert high temperature and plateau low pressure) and power grid standards (IEC, ANSI, BS, AS/NZS, etc.), and have passed international certifications such as CE, CB and SASO, achieving "localized technology and global quality".
Technical Team
Our team of senior engineers, with an average of 8+ years of experience, excels in distribution transformer principles, market demands, and international standards (IEC, GB).
Advantages of Transformer Core
Efficiency
Transformer cores are highly efficient in transferring electrical energy from one circuit to another through electromagnetic induction. They ensure efficient power transmission with minimal energy loss.
Compact Design
Transformer cores enable construction of compact and lightweight transformers, making them suitable for various applications where space is limited.
Scalability
Transformer cores are designed and manufactured in a wide range of sizes and capacities, from small voltage regulators to large electrical power transformers, making them adaptable to different power requirements.
Reliability
When designed and maintained properly, transformer cores offer high reliability and longevity. They operate continuously for several years with minimal maintenance, providing stable and reliable power distribution.
Isolation
Transformer cores provide electrical isolation between primary and secondary windings, ensuring safety and preventing electrical hazards such as electric shocks and short circuits.
Voltage Regulation
Transformer cores facilitate voltage regulation by adjusting the turns ratio between primary and secondary windings. This helps transform voltage levels to meet specific requirements in power distribution systems.
No Moving Parts
Unlike some other power conversion devices, transformer cores have no moving parts, which reduces the risk of mechanical failure and eliminates the need for lubrication & maintenance of moving components.
Low Noise
Transformer cores operate silently, without generating noise or vibration, making them suitable for use in noise-sensitive environments such as residential areas or office buildings.
Compatibility
Transformer cores are compatible with various power sources and loads, including AC and DC systems, making them versatile for use in different electrical systems and applications.
Construction of Transformer Core
The core is made of laminated silicon steel sheets to reduce eddy current losses and hysteresis losses. The laminations are insulated from each other by a thin layer of varnish or paper. The core has a rectangular cross-section with two vertical limbs and two horizontal yokes. The cross-section of the core may be square, rectangular, or stepped, depending on the size and design of the transformer.
The windings are made of insulated copper conductors, which are wound on cylindrical formers. The LV winding is wound on the inner former, and it is insulated from the core by a layer of paper or cloth. The HV winding is wound on the outer former, and it is insulated from the LV winding by a layer of paper, cloth, or mica. The windings are divided into sections or coils, and each section is wound on one limb of the core. The sections are connected in series or parallel to obtain the desired voltage and current ratings.
The windings are also provided with taps or tappings to adjust the output voltage according to the load requirements. The taps are connected to a tap changer, which can be manual or automatic. The tap changer allows changing the number of turns in the windings without interrupting the power supply.
The core and windings are enclosed in a steel tank, which is filled with oil or gas for cooling and insulation purposes. The tank also acts as a shield against external magnetic fields and mechanical stresses. The tank has bushings on its top or side for connecting the terminals of the windings to the external circuit. The tank also has accessories such as a conservator, breather, radiator, thermometer, Buchholz relay, etc., for proper functioning and protection of the transformer.
Importance Of Transformer Core
Efficiency and Performance
A transformer's efficiency comes down to the way it is designed. Good design can keep energy losses small and that makes it so the transformer works as well as it can. This is specially true for the power transformers which even a little increase in efficiency can result in great energy savings on the long term.
Reliability and Longevity
Transformer is just as important on the core and its reliability. Having a core that is firm means the transformer will be able to go through being used and not change too much over a long period of time. This ability is lasting as there will be times where we need to work and fixing things would cost us money.
Design Optimization
Optimizing core design means to strike between different factors like material type, size and the methods used too. Engineers have to think about these things as they make cores that are good at doing special jobs but also not too costly or hard to use.
Applications of Transformer Core
Power Generation and Distribution: Essential in power plants and substations, where they help manage voltage levels and ensure efficient energy transmission.
Renewable Energy Systems: As the demand for renewable energy sources increases, high-quality transformer cores are needed to integrate solar, wind, and other renewable energy systems into the grid.
Industrial Applications: Widely used in various industrial processes, including manufacturing, mining, and chemical processing, where reliable power supply is critical.
Consumer Electronics: Also found in consumer electronics, such as audio equipment and power adapters, where performance and efficiency are essential.
FAQ
We're professional transformer core manufacturers and suppliers in China, specialized in providing high quality products with advanced design. We warmly welcome you to buy transformer core at competitive price from our factory. For specifications and drawings, contact us now.