A 10-KVA, 50 Hz transformer was found to have an efficiency of 98% at full-load, 0.8...

 

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A 10-KVA, 50 Hz transformer was found to have an efficiency of 98% at full-load, 0.8 power factor lagging. It was also found that the maximum efficiency was obtained at 85% full-load, at the same power factor. Determine the core loss P₁, copper loss at full load Pouf and the maximum efficiency of the transformer nmax at 0.8 power factor lagging? i. Enter P, (in W): (in W): cull ii. Enter P. iii. Enter nmax (in %): (correct to 4 decimal places) (correct to 4 decimal places) (correct to 4 decimal places) • Please answer to 4 decimal places, for example 1.2345 • Do not enter space before, between and after the numbers A 10-KVA, 50 Hz transformer was found to have an efficiency of 98% at full-load, 0.8 power factor lagging. It was also found that the maximum efficiency was obtained at 85% full-load, at the same power factor. Determine the core loss P₁, copper loss at full load Pouf and the maximum efficiency of the transformer nmax at 0.8 power factor lagging? i. Enter P, (in W): (in W): cull ii. Enter P. iii. Enter nmax (in %): (correct to 4 decimal places) (correct to 4 decimal places) (correct to 4 decimal places) • Please answer to 4 decimal places, for example 1.2345 • Do not enter space before, between and after the numbers

Answer rating: 100% (QA)

To determine the core loss Pc copper loss at full load PcuFL and the maximum efficiency of the trans... View the full answer