I have another question.

On a short circuit current of a 1000 kva, 3 phase transformerbank with a 1.6% impedance operating at 277/480

First I did: 1000 x 1000= 1,000,000 / 277

=3610
3610/ 1.732= 2084
2084/ .016= 130,272.38?

Did I goof up with the impedance? Shoul it be divided by the .016 or 1.6 ?