The features of three-phase oil-immersed distribution transformer
The three-phase oil-immersed distribution transformer produced by our company adopts a new insulation structure to improve the short circuit resistance; the iron core is made of high-quality cold-rolled silicon steel sheet; , And adopts a multilayer cylindrical structure; all solid parts are treated with special anti-loosening.
The three-phase oil-immersed distribution transformer has the characteristics of high efficiency and low loss, which can save a lot of power consumption and operating costs, and has significant social benefits. It is a popular new technology product.
Reliable structure of three-phase oil-immersed distribution transformer
Based on traditional structure and mature technology, our company has made many improvements, such as:
1.Three-phase oil-immersed distribution transformer has spiral coil with longitudinal oil passage, better heat dissipation inside;
2. Improved the effective support of the coil end face, and the ability to resist short-circuit current is stronger;
3.Three-phase oil-immersed distribution transformer has new lifting structure and body 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. Selecting a three-phase oil-immersed distribution transformer with a higher performance level will have a higher level of technical content.
High-quality materials of three-phase oil-immersed distribution transformer
Oxygen-free copper wire with lower resistivity and additional surface treatment are used to make it smoother and free of burr sharp corners, so that the load loss of the transformer is lower and the electrical performance is more reliable.
Selection of high-quality silicon steel sheet with the improvement of performance level, the use of silicon steel sheet with lower unit loss, so that the transformer no-load loss is lower.
Selection of high quality laminated wood insulation, will never crack, even under the action of short-circuit current, the wire does not move.
Three-phase oil-immersed distribution transformer oil that has been deeply filtered is used to lower the water, gas and impurity levels, which makes the transformer work more reliably.
Selection of high-quality rubber sealing materials, effectively prevent aging and prevent leakage.
All raw materials undergo quality inspection to effectively prevent aging and prevent leakage.
All raw materials have undergone quality inspection, and all raw material manufacturers have undergone rigorous review in accordance with the national standard ISO9000.
4. Good technical and economic performance of three-phase oil-immersed distribution transformer
On the basis of the S9 series, the S11 series products have reduced the no-load loss by an average of 30%; the no-load current has decreased by 70-85% compared to the S9; the average temperature rise has been reduced by 10K and the three-phase oil-immersed distribution transformer life has more than doubled, even at 20% overload It can still run for a long time under the conditions. Three-phase oil-immersed distribution transformer operation noise is reduced by an average of 2-4 dB.
Three-phase oil-immersed distribution transformer fuel tank adopts a fully sealed structure. Compared with ordinary oil-immersed transformers, the fully sealed power distribution transformer eliminates the oil storage tank. The corrugated fins of the fuel tank replace the oil pipes as cooling and cooling components. The corrugated fuel tank manufactured from high-quality cold-rolled sheet on a dedicated production line, corrugated fins can expand and contract the volume of the transformer oil, thereby isolating the transformer from the atmosphere, preventing and slowing oil degradation and damp insulation, enhancing operational reliability, and maintenance-free normal operation.
After the surface of the corrugated oil tank is degreased, derusted, and phosphated, it is coated with three-proof paint which is suitable for use in metallurgy, petrochemical, mining and other environments.