This at the time was the dominant style of UPS and is limited to within the a hundred and fifty kVA vary. These models remain generally utilised in some industrial configurations (oil and gasoline, petrochemical, chemical, utility, and major market marketplaces) due to the strong mother nature with the UPS. https://fernandolmljh.bloguerosa.com/32803970/about-uninterruptible-power-supply-pc