(1) Winding: the electromagnetic wire adopts the oxygen free copper wire with high conductivity, and the winding adopts the new process of integral package with circular barrel type, double cake type and new spiral type, which makes the product structure more compact, the main insulation can be effectively guaranteed, the head and tail layers are strengthened, and the insulation performance is improved. The outer surface of the winding is wound with high-strength tightening belt, which improves the mechanical strength of the winding and greatly improves the impact resistance and short-circuit resistance of the product.
(2) Iron core: 30q130 high magnetic conductivity silicon steel sheet is adopted, and the selected step-by-step multi-stage lamination mode of step-by-step lap core stacking is adopted, which can reduce the no-load loss, no-load current and noise. Wanhua rectifier transformer
(3) Oil tank: the oil tank adopts the heat dissipation oil pipe (the double row and three row oil pipes adopt the plug-in method), or the stepped radiator, which increases the heat dissipation capacity under the same tank wall area; According to the user's requirements, chip radiator or corrugated oil tank, strong oil air cooling or strong oil water cooling radiator can also be installed. Surface treatment of oil tank: the transformer shell is painted with "three anti paint" (anti salt fog, anti damp heat and anti mold), which has strong adhesion with the primer, good decoration, good oil resistance, corrosion resistance, light retention and color retention of the film, and good leveling and covering power.
(4) Body: the insulation cushion blocks of the body are supported by high-strength laminated wood and laminated paperboard, so that the support area of the end of the winding reaches more than 95%, which further improves the short-circuit resistance of the product and improves the operation reliability of the product. The connection between the body and the box cover adopts a rigid belt buffer structure, which overcomes the phenomenon of Tianfu plate shearing machine with "hanging" and "top cover" of the body. The insulating materials are wrapped with high-strength and high-density cable paper, and the allowable pressure shall be 45MPa.
