What is the relationship between the overload capacity of the Amorphous Alloy Dry Type Transformer and its structural design?

Amorphous Alloy Dry Type Transformer plays an important role in the power system, and there is a close and complex relationship between its overload capacity and structural design.
From the perspective of the core structure, the amorphous alloy core has unique characteristics. Due to the low hysteresis loss and eddy current loss of amorphous alloy materials, its temperature rise is relatively small during normal operation. Under overload conditions, the compactness and rationality of the core structure can affect the uniformity of the magnetic field distribution. A reasonably designed core structure can, to a certain extent, suppress the local overheating of the core caused by overload current, thereby improving the short-term overload capacity of the transformer. For example, the use of special core binding and fixing methods can enhance the mechanical stability of the core during overload, reduce the risk of core deformation caused by electromagnetic force, and ensure that the transformer can withstand a certain degree of overload current impact.
The winding structure also has a key influence on the overload capacity. The wire material, cross-sectional area, and arrangement of the winding will affect its heat dissipation performance and current carrying capacity. The use of high-conductivity wire materials and the appropriate increase in the wire cross-sectional area can reduce the resistance loss of the winding when overloaded and reduce heat generation. At the same time, reasonable winding arrangement, such as layered winding and the setting of effective heat dissipation channels, can improve the heat dissipation efficiency of the winding, so that the winding can dissipate heat in time during overload, avoid excessive temperature and damage to the insulation material, and thus improve the overload capacity of the transformer.
Furthermore, the insulation structure design of the transformer cannot be ignored. A good insulation structure can withstand higher electric field strength and temperature stress when overloaded. For example, the selection of high-temperature and aging-resistant insulation materials, and the reasonable determination of insulation thickness and insulation spacing can effectively prevent insulation breakdown accidents caused by overload, ensure the safe and stable operation of the transformer, and indirectly improve its overload capacity.