Split phase to 3-Phase
Hi, I am studying the possibility of powering a 3-Phase electrical panel with either 3-phases 208V, or a split-phase 240V generator.
The 3-phase input would come from a wall transformer, and the loads would be balanced as much as possible. The only load at 208V can also take 240V as its input, the rest of the loads are powered at 120V.
Then, I would like to use a 240V split-phase generator as a secondary input with an interlock, where a relay would short a 120V phase to the C phase of the pannel, as shown below:
Is this a decent idea? The generator would see a slight load imbalance between the two 120V phases, but each of the 120V phases can handle the current and the neutral would carry the imbalance current. This idea comes from the fact that a 3-phase generator wouldn't run properly with the UPS, as it represents 50% of the total load and it is a single phase input.
Thank you!