6-10KV Oil-Immersed Power Distribution Transformer

The three-phase oil-immersed distribution voltage device produced by our company  adopts a new insulation structure,which improves the short-circuit resistance;The iron core is made of high-quality cold-rolled silicon steel sheets;High-voltage windings   are made of high-quality oxygen-free copper wires and adopt multi-layer cylindrical structure;All  fasteners  are  treated  with  special  anti-corrosion  treatment.Adopt  corrugated oil tank and fully sealed structure.

The product has the characteristics of high efficiency and low loss,which can save a lot of money and operating costs,and has remarkable social benefits.It is a high-tech product promoted by the state.

① Spiral coil with longitudinal oil passage has better internal heat dissipation

② The effective support of the coil end face is improved,and the short-circuit current resistance is stronger;

③ New hoisting structure and positioning structure are adopted to ensure more reliability in long-distance transportation and operation;

④ We also have many unique and reliable structures to serve you;

⑤ Choosing a transformer with higher performance level will have a higher level of technical content

⑥ The oil tank adopts fully sealed structure to isolate the transformer from the atmosphere,prevent and slowdown the deterioration of oil and damp insulation, enhance the operation reliability and avoid maintenance during normal operation.

① The oxygen-free copper wire with lower resistivity is selected,and after a series of  additional surface treatments,it is smoother and has no burr sharp corners,which  makes the load loss of the transformer lower and the electrical performance more reliable.

② Select high-quality silicon steel sheet,and with the improvement of performance level,adopt silicon steel sheet with lower unit loss,so that the no-load loss of  transformer is lower

③ Select high-quality laminated wood insulation,which will never crack,even under the action of short-circuit current

④ The transformer oil after deep filtration is selected,which has a lower level of water gas and impurities,and the transformer works more reliably.

⑤ Select  high-quality  rubber  sealing  material  to  effectively  prevent  aging  and earth leakage

No more than 1000m;

Environmental temperature:

The maximum temperature is+40℃;

The maximum monthly average temperature is +30℃;

The maximum annual average temperature is +20℃;

The outdoor minimum temperature is -25℃。

The waveform of power supply voltage is similar to sine wave.

For three-phase transformer,its three-phase supply voltage should be approximately symmetrical. Installation environment:

There is no obvious pollution in the installation environment;

The ground  acceleration ag  caused by earthquake is lower than 3m/s²in the horizontal direction and 1.5m/s² in the vertical direction.

GB/T1094.1    GB/T1094.2     GB/T1094.3     GB/T1094.5

GB/T25289     GB/T6451        GB/T7595        GB20052

JB/T3837       JB/T10088        IEC60076

The transformer products produced by our company all meet the latest version of the above   standards.

Note:

② When the average annual load rate of transformer is between 35%and 40%,the highest operating efficiency can be obtained by using the losses in the table

Note:

② When the average annual load rate of transformer is between 35%and 40%,the highest operating efficiency can be obtained by using the losses in the table