The transformer is a device that uses the principle of […]
The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil, and the iron core (magnetic core).
The main functions are: voltage conversion, current conversion, impedance transformation, isolation, voltage regulation (magnetic saturation transformer) and so on. According to different classification standards, transformers are divided into different product types. Currently, there are mainly five classification standards. surface. R&D and industrialization are designed to meet the downstream industry's new material performance
Transformer components such as coils, leads, voltage regulators, copper valves, cooling systems, etc. require the use of various copper materials such as oxygen-free copper rods, enameled wires, copper bus bars, and copper tape. High end of the product
With the development of the power industry, the capacity of a single transformer is increasing. Therefore, in accordance with the principle of increasing capacity, saving materials, increasing labor productivity, reducing costs, and reducing the volume of use, the power industry proposes improvements to the structure of the transformer to improve the efficiency and reliability of the transformer.
The conventional transformer adopts a transformer (oil-immersed transformer) in the form of a wire winding structure, and a transformer (dry-type transformer) in the form of a foil-winding structure wound from a pure copper strip has:
1 extremely high dynamic and thermal stability, especially in the short circuit state;
2 high space utilization, simple manufacturing process, automatic winding, easy to realize mechanized production, high winding efficiency;
3 The heat distribution is uniform, the volume is small, the weight is light, the capacity is large, the material is saved, the energy saving effect is good, and the no-load loss is small;
4 good heat dissipation performance, easy welding, no axial force, long service life, no pollution, lifetime maintenance-free and many other advantages, has been widely used in transmission and distribution projects, and will gradually replace the wire winding structure of the transformer