Marxie,
Commercial 3phase, 4 wire, Wye connected power (which is what you have) is nominally 120/208 volts. Most commercial equipment will be rated for a 10% tolerance. If your machines won't take it, you have two basic options
1 - change the motors to 208 volt rated
2 - install buck/boost transformers
If you select the first option, someone like Graingers can match most any motor you need if you supply them with ALL the nameplate data.
1-800-323-0620 or
www.grainger.com There are plenty others as well.
Good Luck
