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3D Wound Core Oil-Immersed Transformer
As the most professional supplier of transformer, Taili’s 3D Wound Core Oil-Immersed Transformer is a highly efficient and energy-saving power transformer. It adopts a three-phase three-dimensional symmetrical structure instead of the traditional planar structure, shortening and symmetrizing the magnetic circuit design without air gaps. This significantly reduces no-load losses, no-load current, and operating noise. It features energy conservation, environmental protection, compact structure, and strong short-circuit resistance, and is widely used in urban and rural power grid renovations.
As one of the leading transformer manufacturers in China, TAILI has always adhered to professional craftsmanship, dedicated to providing high-quality transformer products and comprehensive supporting services to global customers. It efficiently addresses various pain points and challenges faced by customers in the field of power applications, helping customers achieve stable and efficient operation of the power system.
Work Condition:
Altitude: not exceed 1000m
Temperature: -40℃~40℃
Standard specification:
1. Standards: EN/IEC60076, ANSI/IEEE-C57.12
2. Primary voltage: up to 36kV
3. Secondary voltage: 0.4kV
4. Rated Power: ≤2500 kVA
5. Frequency: 50/60 Hz
6. Cooling Types: ONAN/ONAF
7. Winding Material: Copper/Aluminum
8. Installation Options: Pole Mounted (≤630kVA) / Pad Mounted
Core advantages of 3D wound core oil-immersed transformer:
● Energy-saving and efficient: The magnetic circuit is completely symmetrical, without the seams of traditional laminated sheets, resulting in a significant reduction in magnetic resistance. The no-load loss and no-load current are approximately 20% - 40% lower than those of traditional laminated iron cores.
● Low noise: The iron core is a solid and compact unit, without the magnetic-induced expansion noise at the seams, and the triangular structure is stable, with little vibration. The operating noise can be reduced by 10 - 20 decibels.
● Strong short-circuit resistance: The triangular three-dimensional structure is mechanically very stable. The three core columns support each other, effectively resisting the huge electrodynamic force generated by short-circuit current.
● Material saving: The iron core is lightweight, uses less material, and due to its compact size, the amount of transformer oil is also reduced accordingly.
Main application scenarios:
● Power transmission and distribution in urban and rural power grids.
● Important places such as high-rise buildings, commercial centers, and airports.
● Combined transformers, prefabricated substations.
Comparison with traditional oil-immersed transformers:
| Characteristics | 3D wound core oil-immersed transformer | traditional oil-immersed transformer (Sheet-wound core) |
| Core structure | Spherical triangular coil core, without seams. | Flat laminated type, with seams |
| No-load loss | Extremely low (reduced by 20% - 40%) | Relatively high |
| Operating noise | Extremely low (approximately 40 - 50 dB) | Higher (approximately 55 - 65 dB) |
| Anti-short-circuit capability | Better | Good |
| Materials and Volume | Save materials and have a compact structure. | Relatively more consumables and larger in size |
| Manufacturing cost | Higher (The process is more complex.) | Lower |
| Long-term economic nature | Excellent (Significant savings on electricity bills) | Generally |
Production：
Raw material
Winding
Vacuum drying and vacuum oil filling(2 in 1 )
Leak Detector
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No.81, Jingsan Road, Economic Development Zone, Yueqing City, Zhejiang Province, China
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