For a 20kVA transformer with a turn ratio of 0.4 what amount of total power is transferred inductively?

A)
8kVA
B)
10kVA
C)
12kVA
D)
50kVA

Correct Answer : Option (C) :   12kVA

Explanation : For an auto transformer power is transferred partially inductively and partially conductively. Thus, out of total power, power transferred inductively is given by (1-k)*total power= 0.6*20= 12kVA.

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