Dry-type Transformer Overload Capacity

Mar 08, 2024

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

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