When it comes to mining and using a UPS/stabilizer your biggest concern is the transfer time/switching time it takes for the UPS to take over or voltage corrections to be made. For efficiency reasons most UPS/stabilizers use relays and tapped transformers to make the changes and being mechanical devices relays take time to operate - anywhere from 5-10 or more ms. Unfortunately odds are the PSU's feeding your miner may not like that long of a dropout. I know mine didn't.
At home I ended up using dual-conversion UPS's like the Tripplite SU6000RT4UHV6kVA that are always online changing AC > DC > AC and have zero transfer time.