This once was the dominant type of UPS which is limited to round the 150 kVA range. These units are still mainly made use of in some industrial configurations (oil and fuel, petrochemical, chemical, utility, and heavy field marketplaces) because of the strong mother nature with the UPS. Your browser https://judohistorytheorypractice49269.life3dblog.com/32765026/ups-uninterruptible-power-supply-things-to-know-before-you-buy