A 120 kVA, 6000/400 V Y/Y 3-phase, 50 Hz transformer has an iron loss of 1600 W. The maximum efficiency occurs at 3 4 f

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answerhappygod
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A 120 kVA, 6000/400 V Y/Y 3-phase, 50 Hz transformer has an iron loss of 1600 W. The maximum efficiency occurs at 3 4 f

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A 120 kVA, 6000/400 V Y/Y 3-phase, 50 Hz transformer has an iron loss of 1600 W. The
maximum efficiency occurs at 3
4
full load. Determine the following:
(a) The efficiency of the transformer at full-load and 0.8 power factor [8]
(b) The maximum efficiency [6]
(c) The efficiency at half-load and unity power factor [6]
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