[rescue] UPS rescue, now what?

[James Lockwood]

On Tue, 30 Jul 2002, Koyote wrote:

> I'm having a real hard time tracking down more numbers on this, but
> assuming I can run this on a 100 res circuit at all, how much do I
> absolutely have to buy in a transformer?

You need as much capacity as the UPS will draw.  A good guesstimate is
1.5x the VA capacity of the UPS (so play on 1500VA for a 1000VA UPS).
This gives enough overhead for both charging and full load operation.

120/240 transformers should be cheap.  HSC in Rohnert Park, CA had a pile
of 2000VA ones for $20/ea last I checked.  Of course, tapping into real
240V is preferable.

-James