The performance of structural transformers is mainly reflected in their unique core and winding designs, which effectively improve electromagnetic efficiency, reduce energy consumption and noise, and enhance mechanical stability. These transformers improve magnetic circuit distribution through optimized internal structures (such as core-type, shell-type, and three-dimensional wound cores), resulting in superior performance in efficiency, heat dissipation, and short-circuit withstand capability.
High-Efficiency Magnetic Conductivity and Low Loss
Structural transformers use laminated silicon steel sheets or amorphous alloy materials as their cores, significantly reducing eddy current and hysteresis losses:
Silicon Steel Sheet Core: The addition of silicon increases resistivity, and the magnetic flux density is controlled within a reasonable range (e.g., 7000~10000 Gauss), reducing iron losses;
Amorphous Alloy Core: No-load current is reduced by approximately 80%, resulting in significant energy savings, suitable for rural power grids with low load rates;
Three-Dimensional Wound Core Structure: Symmetrical magnetic circuit and uniform path effectively reduce local saturation, reducing no-load losses by more than 15%.
Excellent heat dissipation and temperature rise control
Structural design directly affects heat dissipation efficiency:
Oil-immersed transformers: Heat dissipation is achieved through oil channels circulating between the core and windings, suitable for large-capacity applications;
Dry-type transformers: Utilize ANAF natural cooling or forced air cooling, combined with air duct design to enhance air convection, suitable for urban power distribution;
Planar transformers: Small in size and large in surface area, their own heat dissipation conditions are superior to traditional structures, allowing for stable operation at high frequencies.
