Yes it will work - and emit no smoke (under normal conditions!).
Aside from the redundancy of establishing a "half potential" circuit conductor point + a system grounded conductor, it would be similar to an HID Ballast's input Autotransformer - only connected different.
Smoke would likely be emitted from the Autotransformer, if the system Power Transformer's Center-Tapped Noodle Conductor was also connected to the Center Tapped point of the Autotransformer.
In the example setup described by C-H, the Autotransformer would be a 240VAC winding, with a single tap made to the center of the winding (coil).
The tap point will be a 50% tap.
This will result in a Potential of 120VAC between the ends of the winding and the tapped point, with an overall Potential of 240VAC measured across the complete winding (coil).
Move the tap point from 50% to 75%, and the results will be:
* 240VAC across the complete winding - AKA L-L,
* 180VAC from one end of the winding to the tap point - AKA L-N (L-N ex.1),
* 60VAC from the other end of the winding to the tap point - AKA L-N (L-N ex.2).
If you had equipment designed to operate at 240VAC, connect it to L-L.
If you had equipment designed to operate at 180VAC, connect it to L-N ex.1.
If you had equipment designed to operate at 60VAC, connect it to L-N ex.2.
I could post a Schematic of this if needed.
Scott35
