Question

A 25 kva, 2000/200 v, 50 hz transformer has maximum efficiency at 80 % of full-load. Its per unit resistance and impedance are 0.012 and 0.05 respectively. Determine its efficiency and voltage regulation at half of the full-load and at 0.8 of lagging

Answer 1

Determine the efficiency of the transformer in problem 2 at half full-load and 0.8 power factor. load copper loss of 1600 W. Calculateits 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 p

Answer 2

Answer:

Explanation:

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