This after was the dominant form of UPS and is also restricted to within the one hundred fifty kVA array. These units remain mostly utilized in certain industrial configurations (oil and fuel, petrochemical, chemical, utility, and heavy market markets) due to sturdy mother nature in the UPS. From Java 11 https://mylesjuadb.blogdun.com/34448022/the-basic-principles-of-uninterruptible-power-supply-price