S口-MD Series Buried Oil-immersed Transformer

S□ -MD series three-phase buried oil immersed transformer produced by the company is a kind of compact power distribution equipment which installs transformer, high-voltage load switch, fuse for protection in the same oil tank. The high-voltage and low-voltage incoming and outgoing lines adopt fully

insulted, fully sealed and fully shielded waterproof joints, which do not occupy the surface space, can be immersed in water for a certain period offime, and are maintenance free. It can be widely used in densely populted central city, streets, highways, bridges, tunnels, parking lots, airports,ports, tourist

attractions and other power distribution systems,especially for places with strict requirements on height and floor area.

In the product design, the special situation of ventilation and heat dissipation is fully considered, and the design of low loss and low temperature rise is adopted.According to the distribution mode, it can be divided into ring network distribution type and terminal distribution type to meet the different needs

of users.

Standard: IEC60076-1, IEC60076-2, EC 60076-3, IEC 60076-10.

Standard

Operating conditions

1. The maximum operating ambient temperature is+50℃ under natural ventilation,+40℃ under forced ventilation,+40℃ whenthe underground water depth does not exceed 1.5m,+45℃ when thunderground water depth exceeds 1.5m.

2. Altitude:No more than 1000m.

3. The power supply voltage's wave is similar to sine wave.

4. Three-phase power supply voltage is approximately symmetrical.

5. The total harmonic content of load current shall not exceed 5% of rated current.

Features

1. The product can be directly immersed in water or buried in underground tunnel, with protection degree of P68. 2. High corrosion resistance stainless steel box, safe and reliable, maintenance free design.

3. All components are installed on the box shell to facilitate inspection and maintenance. High voltage side with back-up and plug-in fuse, to give the transformer more secure protection.Load switch can be terminal type or ring network type, suitable for a variety of power supply systems.

4. The core made of high permeability silicon steel sheet or amorphous alloy material has lower no-load loss.

5. The high and low voltage incoming and outgoing lines adopt fully insulated, fully sealed and fully shielded waterproof joints, which makes the operation safer.

6. lt adopts buried transformer and billboard type low-votage structure, which conforms to the urban ecological design concept, beautifies the environment and occupies a small area.

Overall and mounting dimensions(mm)

Note:The dimensions and weights provided are only for reference in design and selection.The final size and weight are subject to our prodect drawings.