Low loss: the dry type transformer with solid core coils is characterized by small seamless reluctance, magnetic circuit at the corner in the same direction as the magnetic conductivity of silicon steel sheet, high winding compactness and filling coefficient, and light weight of core. Compared with the traditional stacked core dry transformer, the no-load loss Po can be reduced by 18%-28%. No - load current Io decreased by 50%-60%. Energy saving effect is remarkable, run economy.
Low noise: the noise level of solid coil core dry type transformer is 5-10 db lower than that of laminated core dry type transformer.
Low local discharge: the resin mixing material adopts the foreign advanced mixing method and the vacuum film degassing technology to make the mixed material stir evenly and completely eliminate the bubbles in the middle of the mixture. The high and low pressure coils are poured under the vacuum pressure. The resin insulation is fully encapsulated and the layer turns are completely permeable. Partial discharge of the product is controlled below 5PC. The casting body has dense solidified structure, flame retardant, explosion - proof and no pollution to environment.
High mechanical strength: the solid core is round section, the ability of short circuit resistance is better than the long section. With packing resin to make casting body small difference in expansion coefficient, curing shrinkage rate, small internal stress, curing of high hardness, the internal and external surfaces of the high and low voltage coil is placed in the epoxy resin coating layer with the strengthening of prefabricated molding material, with reinforced concrete as compact structure, and mechanical strength is greater than the pure epoxy resin, so the product can withstand the sudden short-circuit electrodynamic force without damage.
