Performance characteristics:
- Safety: The product adopts NOMEX paper insulation system, which is flame retardant, explosion-proof, and has a high fire rating. Professional craftsmanship, high mechanical strength, strong ability to withstand short circuits, and stable and reliable operation.
- Reliability: H-level (heat-resistant) temperature of 180 ℃, and the main insulation material is C-level (heat-resistant temperature of 220 ℃), with strong overload capacity. Small partial discharge, high insulation level, and long product service life. Good "three defenses" ability, no cracking phenomenon.
- Environmental Protection: The product will not cause pollution to the environment during transportation, storage, and operation. The no-load loss is reduced by 70% -80% compared to ordinary dry transformers, with significant energy-saving effects and a short investment payback period. The product has low noise and is maintenance free. The product can be recycled at the end of its lifespan, achieving resource reuse.
Technical parameter table:

Core characteristics:
- The raw material for the iron core is made of Hitachi metal amorphous material from Japan, which reduces iron loss by 70% -80% compared to conventional products.
- The iron core structure is simple, and the unique process makes its mechanical strength high. Its characteristics and structure will not be affected by transportation and vibration.
- The unique three pillar structure of amorphous materials has the ability to resist high-order harmonics and can be connected using Dynll and Yyn0 wires.
Characteristics of Low Voltage Coil:
The low-voltage coil is made of high-quality copper foil and H-grade insulation material wound on a high-strength polyester imine cylinder, with insulation material NOMEX paper used between layers. The coil is impregnated into a sturdy whole by VPI vacuum pressure, and the upper and lower ends of the coil are sealed with resin.
- The coil has high mechanical strength and strong resistance to short circuits.
- The coil has strong resistance to thermal shock, greatly improving the product's lifespan.
- The coil has strong ability to resist moisture, dust, and salt spray.
Characteristics of High Voltage Coil:
The high-voltage coil adopts a multi-layer segmented cylindrical structure and a longitudinal multi airway structure. It uses NOMEX paper wrapped flat copper wire as the conductor, and insulation material NOMEX paper is used between layers. The coil is immersed into a sturdy whole by VPI vacuum pressure, and the upper and lower ends of the coil are sealed with resin.
- The multi-stage and layered winding design of the coil makes the initial point distribution of lightning waves between high-voltage coil turns almost linear, thereby improving the coil's ability to withstand sudden waves.
- The coil has high mechanical strength and strong resistance to short circuits.
- High heat-resistant insulation materials and longitudinal multi channel design make the coil have strong resistance to thermal shock and greatly improve product life.
- The coil has strong ability to resist moisture, dust, and salt spray.
Advanced production technology ensures the reliability of products:
- 3D design: Based on more than 30 years of experience in design, manufacturing and experiment in the transformer industry, Shanghai Zhiyou Company has developed a set of pioneering "3D+parameterized" design software, which can realize automatic design and cost optimization, simulation and emulation, fully consider the requirements of national and industrial standards, and ensure the progressiveness of product design.
- High voltage winding: The high-voltage winding conductor is made of high-quality conductor winding, reinforced with long and short cut glass fiber felt as filler, and poured by the world-class Heinrich vacuum casting system in a vacuum state. Effectively suppress the occurrence of partial discharge phenomenon, with a partial discharge capacity of less than 5pC.
- Low voltage winding: The low voltage winding adopts high-quality pin conductors and is wound on an automatic box winding machine. The winding machine adopts the technology of "wire hydraulic energy-saving tension curling device", high-precision detection of ± 0.5mm, and advanced hydrogen arc welding technology, which plays a key role in ensuring the quality of coil winding.
- Iron core: The iron core adopts a multi-stage step through positioning structure, and under various working conditions, the iron core has no lateral or longitudinal displacement.
- High quality insulation:
The transformer body adopts a high-temperature resistant mixed insulation system, which effectively solves the problem of temperature field differences in different types of transformer structures and ensures the safety and reliability of the insulation system.
- Advanced winding technology:
Made of high-quality conductor winding and reinforced with long and short cut glass fiber felt, it is poured under vacuum using the world-class Heinrich vacuum casting system
- Fully automatic core lamination technology:
The robot is fully automatic in laminating, adopting a fully inclined 45 degree 7-step ladder joint structure, which improves the efficiency and quality of transformer laminating.
- Testing and Inspection Techniques
All products strictly control the production process and quality links, and undergo strict testing and inspection according to national standards and customer customized requirements before leaving the factory, including partial discharge inspection, lightning impact resistance inspection, noise inspection and other necessary inspection items. Advanced testing equipment and a comprehensive inspection and testing system ensure the high quality and excellence of the products.
Dry type power transformers have been successfully applied in Beijing Olympic venues, ensuring stable and efficient operation at every moment. From the glorious arena to the behind the scenes guarantee, injecting inexhaustible power into the Olympic dream with excellent quality, and letting the world witness the extraordinary strength of Chinese manufacturing!
Ordering Notice:
- Please provide detailed parameters of the product.
- Please provide us with as much product related information as possible regarding the product specifications, product drawings, product nameplates, product photos, etc. that you need to order, so that we can provide you with a faster and more accurate quotation.
- Please provide the product specifications, product drawings, product nameplates, product photos, etc. that you need to order, send email to: shanghaizhiyou@gmail.com We will reply as soon as we receive the email.
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