This at the time was the dominant type of UPS and is restricted to around the a hundred and fifty kVA selection. These models are still largely applied in a few industrial options (oil and gasoline, petrochemical, chemical, utility, and significant sector markets) due to strong character in the UPS. https://bangkokwax38258.free-blogz.com/81067147/new-step-by-step-map-for-uninterruptible-power-supply-definition