Question: 6 . ( h ) The maximum efficiency of a 4 0 KVA, 5 0 H z , 1 1 0 0 4 4 5

6.(h) The maximum efficiency of a 40KVA,50Hz,1100445V single-phase transformer is 96% and occurs at 90% of full load at unity power factor. If the impedance is 5%, calculate regulation at full-load 0.95 power factor lagging.
6 . ( h ) The maximum efficiency of a 4 0 KVA, 5

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