If I am understanding you, then 3 phase is an opportunity, not a problem. It means you can select which secondary to be connected to on your local power transformer. One may be quieter than another due to what your neighbours are doing with theirs. Generally you are likely to get lower noise if you do not use the same phase as you nearest neighbours. This is because the noise added by your neighbours is attenuated by the length of the cable between you and them.
