Hi, This is not really homework but since it's homework style, I'll post it here and maybe benefit someone else. 1. The problem statement, all variables and given/known data I need to calculate the final voltage on Bus 2 (labeled B2 in attached PDF). I am trying to do this using per units and my attempt is attached. The network is simply a three phase 11/433 tx (assumed to be fully loaded) with one phase going from Bus 1 to Bus 2 via a single phase tx that is loaded at 32 A. The final voltage I get is 213.6 V. Can someone please confirm that what I am doing is correct (particularly the single phase tx's equivalent impedance) ?. See attached PDF for known data. 2. Relevant equations 11/433 is a three phase and the 433/240 is a single phase. 3. The attempt at a solution See attached pdf.