Answer Posted / naresh chandra jha

it depend upon connecting load and voltage . cable size is
calculated by = (IT^(o.5))/k
where I= max. fault current
T=time to withstand fault current
K=conductor constant , for alluminium k=0.094

transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

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