Electricity Transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It reduces the 10(6)kV or 35kV network voltage to the 230/400V bus voltage used by users. This type of product is suitable for AC 50 (60) Hz, three-phase maximum rated capacity 2500kVA (single-phase maximum rated capacity 833KVA, single-phase transformers are generally not recommended), and can be used indoors (outdoors) with a capacity of 315kVA and below. Can be installed on a pole, the ambient temperature is not higher than 40℃, not lower than -25℃, the maximum daily average temperature is 30℃, the maximum annual average temperature is 20℃, the relative humidity does not exceed 90% (ambient temperature 25℃), altitude No more than 1000m.
1. Reduce no-load loss. The five-level joints of silicon steel sheets with excellent performance are used to improve the core structure and process and reduce the process coefficient. The iron yoke silicon steel sheets are not stacked and are not painted, and the shearing burrs are controlled below 0.02mm.
2. Reduce load loss. Use wires drawn from oxygen-free copper rods with higher conductivity than electrolytic copper to improve the conductivity. Appropriately reduce the current density, improve the insulation structure, use semi-oil channels, prefabricated insulation parts, winding overall packages, self-adhesive wires, self-adhesive paper, reduce the insulation volume, increase the winding filling factor, and reduce the winding size to reduce load loss.
3. Reduce the loss of other components. Improve the iron core structure: Improve the structure, control the winding leakage flux in the design, and adjust the ampere-turn balance to reduce stray losses in structural parts such as fuel tanks. Use corrugated oil tanks and fin radiators to improve heat dissipation efficiency.
