A single-phase three-winding transformer has the following parameters: \(Z_{1}=Z_{2}=Z_{3}=0+j 0.05, \mathrm{G}_{C}=0\), and \(\mathrm{B}_{M}=0.2\) per unit. Three identical transformers, as described, are connected with their primaries in \(\mathrm{Y}\) (solidly grounded neutral) and with their secondaries and tertiaries in \(\Delta\). Draw the per-unit sequence networks of this transformer bank.