Overload capacity of dry-type transformer

The overload capacity of dry-type transformers is related to the ambient temperature, the load before overload (initial load), the insulation and heat dissipation of the transformer, and the heating time constant. If necessary, the overload curve of the dry transformer can be obtained from the manufacturer.
How to use its overload capacity? The author proposes two points for reference:
⑴ When choosing to calculate the capacity of the transformer, it can be appropriately reduced: fully consider the possibility of short-term impact overload of some equipment such as steel rolling and welding-try to use the strong overload capacity of dry-type transformers to reduce the capacity of transformers; for some places with uneven loads, such as residential areas mainly for night lighting, cultural and entertainment facilities, and shopping malls mainly for air conditioning and daytime lighting, you can make full use of its overload capacity and appropriately reduce the capacity of the transformer so that its main operating time is at full load or short-term overload.