A 2000 kVA, single-phase transformer is in circuit continuously. For 8 – McqOptions

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1.	A 2000 kVA, single-phase transformer is in circuit continuously. For 8 hours in a day, the load is 160 kW at 0.8 pf. For 6 hours, the load is 80 kW at unity pf and for the period remaining out of 24 hours, it runs on no-load. If the full-load copper losses are 3.02 kW, the total copper losses in 24 hours are:
A.	35.02 W
B.	24.16 W
C.	11.46 W
D.	38.40 W
Answer» B. 24.16 W

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