Product Categories
Power
Special Transformers
Box-Substations
Switchgear Reactors
Special Equipment For Transformers
S11-MD underground power transformer
Underground transformer is a new type transformer that independently developed on the basis of the combination of the advanced technology from abroad and the actual situation of china. It is the true meaning of underground transformer for it can be installed underground and does not occupy any space, and can run safely in water for a certain period time. And it is maintenance-free.
- functional
- use condition
- applied range
- picture
- certification
- The underground transformer is usually installed in the trench of the small holes or pits, giving full consideration to the special environmental situation-low temperature design, low loss, low noise, small size, aesthetic, strong overload ability, maintenance-free, environment protection and reliable sealed and high mechanical and carrion-resistance.
1. Core: it applies the high quality of 30 ZH120 high permeability grain oriented of cold-rolled silicon steel sheet, three step lap, and 45° wide ramp joints, no punching and therefore reduces the technology loss and the no-load loss is 30% lower than the standard of GB/T6451-1999.
2. The largely used elbow-plug cable is able to meet the requirements of running for a long time under the water and is fully in accordance to the IEC standards. And the high-voltage lines apply the elbow cable head of the Cooper Company of America, with the features of waterproof, full insulation and all shielding.
3. The low voltage line can be designed according to the needs of the users. It is aesthetic and reliable.
4. The oil tank applies the corrosion-resistant steel and the special anti-corrosion technology, the grading shell protective has reached the IP68.
5. The cover applies the all-welding technology, the flange of high and low voltage elbow and other parts all apply the welding in the box on and thus make sure the seal nature.
6. The test of underground transformer is in fully accordance with GB1094.1, GB1094.3, GB1094.5, GB/T6451, JB/T10217 and it also experienced the immersion test.
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- 1. Highways, urban rapid roads lighting, control, communication electricity equipment system.
2. subway, airplane
3. Large and medium sized factories and mines (especially the filthy conditions districts)
4. Hi-tech parks, industrial parks, modern living area.
5. Large green space, plazas and sports venues.
6. Large and medium-sized power plants, substation plants.
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