Written by Mark Lloyd
I have been working with AC UPS systems from a few VA up to a few hundred kilowatts for a number of years now. What that experience has taught me, is that including a UPS in a system design is very often an afterthought. In smaller systems such as a typical ICA panel, where only a few kVA is required, space is often at a premium. Therefore, trying to fit a UPS in post design can be tricky.
What generally happens is that a standard off the shelf, commercial UPS is placed in the bottom of the panel. This firstly does not look very good and secondly is not a very industrial solution.