Subject = New: 4 Wire Delta Trans. Drawings - Open DeltaThese are new drawings as of 05/03/2008. Feel free to comment.
The following drawings describe a 240/120V 3 Phase 4 Wire Open Delta
Transformer connection, and the nominal Voltages at various points:
Figure 1a: Schematic drawing of the 3 Phase 4 Wire Open Delta.
Figure 1b: Layout drawing of the 3 Phase 4 Wire Open Delta.