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Reply To: Transformer Riddle No. 24 – Essentiality Tertiary winding in Power Transformer

#1629
R K Mohapatra

    Conventionally the High voltage winding is kept away from the core and the low voltage winding is kept closer to the core . when HV winding is energised due to larger cross section area bett the HV winding and core , the inrush current is lower as stated above and by many other authors . But in some transformers where the volatge ratio is very high or when the LV current is very high , the LV winding is kept outside and the HV winding is kept inside , closer to the core . Whether the in-rush current will also be low ? Is it also correct to presume that the high voltage winding have more no of turns and the enegisation is required to be fed by Ampere turns . HV winding owing to having more turns will draw lesser amperes ?