I am studying a SLD (single line drawing) wherein the designer is using a
transformer (1000KVA) with dual primary windings (3-phase both delta
connected) and single secondary winding (3-phase star connected) to step up
voltage to 33KV. Both primaries are fed with 3-phase, 1000V, AC , 50Hz
separately the outputs of two inverters. I shall appreciate if output (33KV)
from this transformer is technically and briefly explained to me. Nothing
else is mentioned on the SLD about this transformer.