winnie
Senior Member
- Location
- Springfield, MA, USA
- Occupation
- Electric motor research
__dan nails it, and I retract the idea.
To guarantee that the 240V divides in half evenly all the primary coils would need to couple with all of the secondary coils.
This clearly would _not_ happen with three single phase transformers banked as a 480V:240V delta:delta transformer.
The transformer in question here is a 3 phase unit with a 3 leg common core. There are multiple flux paths and some coupling between all of the coils, but I don't believe enough to give a solid neutral.
-Jon
To guarantee that the 240V divides in half evenly all the primary coils would need to couple with all of the secondary coils.
This clearly would _not_ happen with three single phase transformers banked as a 480V:240V delta:delta transformer.
The transformer in question here is a 3 phase unit with a 3 leg common core. There are multiple flux paths and some coupling between all of the coils, but I don't believe enough to give a solid neutral.
-Jon