Jim McDonald wrote:
> I have an APC Smart-UPS 700 that I bought from RefurbUPS.com. I can't tell
> in the information I have which type of UPS it is. Does anyone know?
> Thanks.
>
> Jim N7US
It's a consumer grade switching UPS with a 500W capacity.
It'll hold half load (250W) for about 14 minutes and full load for about
4.5.
It's designed for PC's and has either a serial or USB connection which
will allow software running on the PC to catch a signal from the UPS to
start a graceful shutdown of the PC when the UPS reaches a user defined
level of discharge.
It is a switching style of UPS and not a 100% inverting style.
In my experience with them they are susceptible to RF and "dirty" line
power. If the source varies in frequency or voltage by more than about 7
- 10% the relay will constantly trip in and out.
The 100% inverting style of UPS is what you want. They are more
expensive and probably don't come in VA ratings of less than 1,000.
--
R. Kevin Stover ACØH
K2/100 #4684
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