Oil-immersed three-dimensional transformer
Planar/Stereo Wound Core
Product Advantages
• Significant energy savings : Low损耗, effectively reducing operational costs and enabling energy conservation and emission reduction.
• High reliability : Fully sealed design prevents moisture and contaminants from entering, enhancing the reliability of product operation.
• Highly versatile : Suitable for new and upgraded urban and rural power grid projects, catering to diverse environmental requirements.
• Intelligentization : Equipped with intelligent monitoring devices, it enables remote surveillance and data collection, enhancing management efficiency.
Product Features
• Structural Innovation : The iron core features either a three-phase three-column three-dimensional structure or a three-phase five-column planar design, reducing no-load losses.
• Superior performance : The high- and low-voltage windings are made from premium materials; the low-voltage winding is wound with copper foil, ensuring minimal operational noise.
• Good sealing performance : Vacuum oil filling, fully sealed design—extending service life.
• Smart Control : 24-hour real-time monitoring of power quality, collecting and recording operational data to enable unattended operation.
3D Design
Drawing on more than 30 years of design, manufacturing, and testing experience in the transformer industry, XianDao has developed a "3D + Parametric" design software that enables automated design, cost optimization, as well as advanced simulation and modeling. The software fully integrates national and industry standards, ensuring cutting-edge product designs while maintaining high efficiency and reliability.
High-voltage winding
The high-voltage winding conductors are wound using premium-quality materials, with short and long glass fiber mats serving as reinforcing fillers. The entire assembly is then cast under vacuum conditions using the world-class Heidelberger vacuum casting system. This process effectively suppresses partial discharge phenomena, ensuring that the partial discharge level remains below 5 pC.
Low-voltage winding
The low-voltage winding is crafted using high-quality pin conductors and wound automatically on a specialized winding machine. This machine incorporates "hydraulic, energy-efficient tension-coiling technology for wire materials," along with ±0.5mm high-precision detection and advanced hydrogen-flux welding techniques—key factors in ensuring the exceptional quality of the coil winding process.
Iron core
The iron core is made from high-quality, highly permeable grain-oriented silicon steel sheets, fabricated using a 45-degree full-shear stepped lapping process. Its surface features a special moisture- and rust-resistant coating, which effectively reduces no-load losses, no-load current, and noise levels.
Testing and Inspection Technology
All products undergo rigorous control over both production processes and quality checkpoints. Before leaving the factory, they are subjected to stringent testing and inspections—compliant with national standards as well as tailored customer requirements—including partial discharge tests, lightning impulse withstand tests, noise inspections, and other mandatory checks. State-of-the-art testing equipment and a comprehensive inspection system ensure that every product meets the highest standards of quality and performance.
Terms of Use
• Altitude: ≤ 1000m
• Earthquake Resistance Capability: Level VIII
• Relative humidity: ≤ 95%
• Installation location: Indoor/Outdoor
• Ambient temperature: -40°C to +50°C
• Contamination Level: Indoor ≥ Class C; Outdoor ≥ Class E
Meaning of the Model

Specification Parameters
Machine model
Machine weight
Machine color
Machine dimensions
Relevant cases
Grid power distribution
Export Power Distribution
Factory Power Distribution
Commercial Power Distribution
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