Efficiency of Sola Constant Voltage Transformer?



I can't seem to find a valid web site for Sola-HeviDuty, the manufacturer,
but I'm considering adding a model 23-23-220-8 CVS ahead of our UPS to clean
up the harmonics from our generator so that we can run the UPS on the 'high
sensitivity' mode without having it constantly switch to battery.

The only concern is how much this is going to add to our operating cost,
assuming 11-cents/kWh. What is the efficiency of these saturated-core
beasts? Back in the old days, we used to use them with automatic inspection
equipment, but no one was concerned about energy costs back then. We have a
network of computers here, pulling just nigh of 2kVa, running on a
similarly-rated APC UPS. How much energy is wasted by the 2kVa Sola
transformer?


--
Best Regards,

Mark A. Weiss, P.E.
www.mwcomms.com
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