Temperature Rise and Transformer Efficiency
     This article is excerpted from "Premium-Efficiency Motors and Transformers", ...
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Copper reduces T&D losses better than aluminium
     The government's decision to allow the use of copper in distribution transformers (DTs) has resulted in a substantial jump in the consumption of copper in DTs. States like Gujarat, Andhra Pradesh, Delhi and Madhya Pradesh, which were earlier using aluminium windings, have now switched over to copper windings for all new requirements of DTs.
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Transformer Formulas
     Here are some transformer formulas that may be useful...
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