20kV Oil-Immersed Transformer
A fully sealed transformer is one in which the interior of the oil tank is completely isolated from the external atmosphere, preventing moisture and oxygen from entering the tank. This effectively slows the aging of the insulating materials and the transformer oil, thereby significantly enhancing the reliability of transformer operation.
Keywords: High- and low-voltage complete sets – packaged substations – ring main units
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Product Description
Product Overview
A fully sealed transformer is one in which the interior of the oil tank is completely isolated from the external atmosphere, preventing moisture and oxygen from entering the tank. This effectively slows the aging of the insulating materials and the transformer oil, thereby significantly enhancing the reliability of transformer operation.
Features and Advantages
● More economical
Through optimized design, this product strikes a perfect balance: minimalist yet sophisticated, fully functional yet highly cost-competitive—making it a premium, value-for-money solution for power distribution.
● More reliable
Low-voltage windings use copper conductors or copper foil, while high-voltage windings employ high-strength enameled wire or paper-insulated wire in a round-wire configuration, ensuring uniform ampere-turn distribution, minimal leakage flux, high mechanical strength, and strong short-circuit withstand capability.
The core and windings are subjected to vacuum drying, and the transformer oil is filled under vacuum, minimizing the trace moisture content in the oil.
All fasteners inside the enclosure are equipped with hot-dip galvanized lock nuts, ensuring they remain securely tightened even during long-distance transportation. All sealing gaskets are made of high-quality acrylate rubber, providing effective resistance to photoaging, electrical aging, and thermal aging.
● More efficient
Designed and manufactured in accordance with the energy efficiency rating requirements of national standards, these products can significantly reduce no-load losses and improve operational efficiency.
Main Technical Parameters of the Product
|
Name |
Oil-immersed transformer |
Output power |
30~3150 kVA |
|
Structural form |
Integrated |
Number of terminals |
1 item |
|
Input voltage |
24kV |
Input frequency |
50Hz |
|
Operating Environment |
Outdoor |
Output voltage |
400V |
|
Protection Level |
IP54 |
Peak efficiency |
≥99% |
|
Installation Method |
Foundation/Column |
Altitude |
≤2000m |
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Address: No. 26, Tuan Shan East Road, Economic Development Zone, Lishui District, Nanjing City, Jiangsu Province
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