Steve,
Ya, this core is similar to the common Delta / Wye stepdown Transformers we all have setup in the field.
The differences in this particular core is the use of "Shielded Windings".
The Shields help to reduce the Capacitive Coupling of EMI / RFI that is something inherent with Isolation Transformers.
The Core is also grounded, which assists with driving those signals to ground levels.
I pointed out the larger white jumper wires on the front center of the coils, to describe where primary %voltage taps are located.
This is because many people are unaware of there location.
As many people are unaware of the primary voltage regulation taps, some are unfamiliar with Transformers all together. Hopefully these pics and the corresponding discussion threads will assist them in gaining some knowledge, or at least some basics, to these devices.
Scott SET
