- #1
anand raj
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Homework Statement
a 4 kva, 230/115 volt, 400 HZ, single phase transformer originally designed for use in air crafts, is available in a laboratory for obtaining 115 volt supply from standard 230 volt,50 HZ mains if overloading of the device is not permitted then net kva output is...
Homework Equations
The Attempt at a Solution
[/B]here frequency is varying voltage remaining the same
kva being proportional to frequency
x = kva output for 50 HZ
4/x = 400/50
x = 0.5 kva
i don't know whether it is right or wrong, but the answer is this.