Substituting the values:
where: \(I_{sc}\) = short-circuit current (A) \(S\) = transformer rating (kVA) \(Z\) = impedance (%) \(V\) = voltage (V) examples in electrical calculations by admiralty pdf
\[I_{sc} = rac{1000 imes 100}{5 imes 440} = 4545A\] examples in electrical calculations by admiralty pdf