3-Phase Distribution Transformers 11 or 33 kV/415-240V ...
11.2 The maximum allowable losses at rated voltage and rated frequency permitted at 75 0C for 11/0.433 kV transformers can be chosen by the utility as per Table-3 upto 200kVA and Table-6 for ratings above 200kVA as per Energy Efficiency Level-2 specified in IS 1180 (Part-1):2014 for all kVA ratings of distribution transformers.
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