[SML] Motors on UPSs

[Lou Poppler]

On 1/15/15, Michael Sauder via Stagecraft <stagecraft at theatrical.net> wrote:
>
> I've learned not to assume a single thing. My emails tend to be lengthy and
> detailed [...]
>
> A side point I'm really curious about: When you read "220V 3 phase" do you
> folks read that as "Each leg is 127V, any two of which give you 220V" or do
> you read it as "Each leg is 220V, any two of which give you 380V"? (Convert
> to U.S. figures as needed)

Best is to specify exactly what you mean, every time:  e.g.
"480V-wye-277V",  or as I've seen in some weird convention setups
"240V-delta-120V (with a 'wild' third leg)".  Don't let them assume
anything and don't let them jump to their own conclusions.