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Question: an electricity company is to use a 3phase 600kva 11...

Question details

An electricity company is to use a 3-phase, 600-KVA, 11 distribution network. Assume that the transformer will be supplying a rated load at 0.8 power factor lagging. The short circuit and open circuit tests for the transformer is presented as follows 000/660 V, star-delta connected transformer in its Test A Test B V 660 V I 16A P 4800 W V 500 V 1-30 A P 8200 W Determine the voltage regulation and efficiency of the transformer when it is supplying the rated load.
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