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A 60 Hz 20kVA 8000/240 Vrms transformer has the equivalent circuit parameters given in the table. a) For the rated load having a lagging power factor...

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A 60 Hz 20kVA 8000/240 Vrms transformer has the equivalent circuit parameters given in the table.

a)For the rated load having a lagging power factor of 0.8, find the magnitude of the load current in Amperes

B)Find the phase of he load current in degrees

C)Find the total copper loss in watts

D)Find the magnitude of the input voltage (V)

E)Find the core loss in Watts.

F)Find the power efficiency for the transformer for a rated load having a lagging power factor 0.8. (%)

G)Find the percentage regulation. (%)

Please give the formula for each question, thanks

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