You will probably be replacing that motor often if you run it at low voltage.
A few years ago, I had a situation where I was called for problem at a school that was maybe 1-year old, which had 3-phase 208V service, and a large well water pump wired by the original EC that was designed for 240V.
The well pump was shot and the well company told the school they wouldn’t replace the pump under warranty because it was constantly being run at low voltage. The original EC never checked the nameplate voltage before connecting the pump.
The well company installed a new pump and at the same time I installed a boost transformer to bring the voltage up to spec and all has been fine for several years now.
