Subject = New: SDS Transformer Grounding Drawings

The following drawing depicts Grounding the Secondary "X0" terminal of a
typical 480 x 208Y/120V 3 Phase 4 Wire Wye Transformer
( a Separately Derived System ):

[Linked Image]

Figure 1a: Front View of the Transformer.

Notice the internal Transformer Winding Connections.

[Linked Image]

Figure 1b: Top View of the Transformer.

Notice the incoming Branch Circuitry on the Right Side,
and the outgoing SDS Circuitry on the Left.

BTW, the Grounding Electrode Conductor is coming in from the back.


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!