Utilisation factor definition

Utilisation factor. (UF) means, in relation to a transformer, the ratio between its peak load (kVA) and its rated capacity (kVA)5. UF may be calculated for zone substation transformers and for distribution transformers. Note that this UF (typically about 60–80 %) is not to be confused with the after diversity UF published in distributors’ information disclosures (typically about 30–40 %).
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