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S20-M Oil Immersed Distribution Transformer
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- 产品描述
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Energy-saving performance
Low losses:
Advanced core materials and structural designs, as well as optimized coil winding designs and insulating materials are adopted, making the magnetic circuit more compact and uniform, reducing magnetic resistance and eddy curent losses. Compared with traditional transformers, both no-load losses and load losses are significantly reduced. For example, compared with the S13 transformer, the no-load loss is reduced by about 10% and the load loss is reduced by about 20%.
High energy utilization efficiency:
By reducing losses, a large amount of energy can be saved during operation, improving energy utilization efficiency and reducing operating costs, which complies with the requirements and trends of national energy conservation and emission reduction.
Technical Characteristics
Core design:
High-quality high-permeability cold-rolled silicon steel sheets are selected. Through advanced lamination processes, for example, cold-rolled grain-oriented silicon steel sheets with a thickness of less than 0.3 mm and high magnetic permeability are used, effectively reducing the hysteresis loss and eddy current loss of the core and reducing the volume and weight of the transformer.
Winding design:
The windings are made of high-quality electrolytic copper wire or aluminum wire, which have better electrical conductivity and higher carrying capacity. There are two basic winding types, namely concentric and interleaved. Advanced insulating materials and winding processes are also adopted to further reduce the losses and temperature rise of the transformer.
Cooling methods:
There are multiple cooling methods available, such as natural cooling (ONAN) and forced cooling (OFAF, etc.). Depending on different usage scenarios and load conditions, it can ensure that the transformer maintains good heat dissipation performance during operation and extends its service life.
Structural design:
A fully enclosed enclosure is adopted, with multiple safety protection measures such as explosion-proof, moisture-proof, and pollution-proof, which can adapt to outdoor environments exposed to wind and rain, such as in remote mountainous areas and rural power grid renovation projects. Meanwhile, it also improves the operational stability and reliability of the equipment.
Technical Parameters
Rated Capacity High Voltage Tap Range Low Voltage Vector Group Load Loss No-load Current Impedance Voltage (kVA) (kV) (kV) (W) (%) (%) 30 6
6.3
10±2*2.5
±504 Dyn11
Yyn00.07 0.505 4 50 0.09 0.73 63 0.1 0.87 80 0.115 1.05 100 0.135 1.265 125 0.15 1.51 160 0.18 1.85 200 0.215 2.185 250 0.26 2.56 315 0.305 3.065 400 0.37 3.615 500 0.43 4.33 630 0.51 4.96 4.5 800 0.63 6 1000 0.745 8.24 1250 0.87 9.6 1600 1.05 11.6 2000 1.225 14.64 5 2500 1.44 14.84
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