I believe that I have seen some posts here regarding data center power in
the UK. I'm curious to find out what input voltage and configuration is
commonly used for single phase computer power supplies in large data
centers.
In the US, it's common to use switching power supplies with an input range
of about 95 to 240V. This covers single phase voltage of 110V or 220V. It
also allows operation from a 208V 3-phase delta source (line to line). The
same supply could also operate from 400V 3-phase wye with a line to neutral
voltage of 230V. Is this common for the UK? If so, are unbalanced neutral
currents a problem? Are any other configurations common? Thanks in advance.
- posted
14 years ago