Formula to calculate efficiency of transformer at hald load at unity power factor
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load copper loss of 1600 W. Calculate its efficiency for a load of 60 kW at 0.8 power factor. transformer (a) on full load, and (b) on half load. maximum efficiency, assuming the power factor of the load is 0.80. (a) Let x be the fraction of full loadkVA at which the efficiency is a maximum.
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