Transformer power transformer capacity increase volume reduction Electrical Company

13925508852 Wu-sheng power transformer according to the structure is divided into two kinds of shell-type transformer core and transformer. First, the heart-type transformers from a structural point of view, the heart-type power transformer windings are cylindrical, the core of the core columns have approximately cylindrical cross-section, high-voltage and low-voltage winding of the transformer windings are concentrically arranged, the body of (core together with winding) is vertically arranged. Windings may be cylindrical, spiral, continuous, layered in different forms, tangled, and internal structures such as shielded, depending on the voltage and current windings. But the core of the core columns are multi-level approximation cylindrical cross-section, yoke in different designs can have different shapes. Second, the shell-type transformers from a structural point of view, shell-type transformer winding is a flat rectangular wire cake high and low voltage windings are arranged vertically, staggered, the core horizontal arrangement. The vast majority of our country and abroad are producing core transformer factory-type transformers, transformer plant only a few shell-type transformers. Usually for shell-type transformer manufacturing plant, the production capacity of its shell type power transformers greater than 1201wca, when the product capacity is less than 120wva, shell-type transformer manufacturing plant also uses core transformer technology. This is because the capacity is greater than 120wva, shell-type transformers technically and economically more advantageous heart-type transformers; when the capacity is less than 120wva, heart-type transformers in the technical and economic superior than the shell-type transformers. Structure power transformer? China's production of power transformers, basically only a structure type that core-type transformers, so the windings are concentric structure. The so-called concentric windings, that is, on either leg of a cross-section of the windings are in the same line of the cylindrical sleeve on the outside of the leg. Under normal circumstances always low voltage windings on the inside near the core at the high-voltage windings on the outside. Between high voltage winding and the low voltage winding, and low-voltage winding between the legs must leave a certain insulation gap and cooling channels (oil passages), and separated by an insulating cardboard tube. The size of the insulation distance depends on the gap voltage windings and cooling channels required. When the low voltage winding on the inside near the leg, the insulation distance between it and the legs due to the required relatively small, so the size of the windings can be reduced, the whole transformer is also reduced dimensions. Website: http: //www.dongguanzhigao.com Dongguan quality high Electrical and Mechanical Engineering Co., Ltd. Tel: 0769-22290906 Fax: 0769-27285987