UPS questions

No, that is just the wrong information.

A line conditioner is used to protect against brownouts, not
an UPS. However, some of the better quality UPS are an
online type, so they are regulating an output from onboard
supply continuously and that could be enough during a
brownout moderate enough in depression, providing the UPS is
also suitably high in current capability.

It's a bit of a side-step though, to think in terms of an
UPS like this as it is a lot of extra wasted money unless
you actually needed only a short duration until you could
safely power down the system.

Based on the info you have provided, the guy has no idea
what he's talking about.

Perhaps you should just back up and supply all relevant
info. What is this computer, exactly, with the 1KW PSU in
it? What exactly is the requirement, the grid anomoly in
voltage depression and duration that you need to correct.
Are you expecting the system to run all day during a
brownout?

Just ignore him and start by supplying all relevant facts,
here. Remember, you don't want an UPS to run through a
brownout, you want a line conditioner, and for any "$x" you
will get a better line conditioner if a large part of that
budget isn't spent on the UPS as well... but maybe you
"need" an UPS too, require both different functions.

That 330W is not likely to be an online type, just running
through it's outlets will not do anything of harm. IF/when
the power drops below the UPS' threshold to switch on, at
that point if your plugged in devices consumed too much
current it could cause the UPS to switch off (usually
immediately, but in some cases it might be a certain event
later, like if you were trying to run a laser printer that
would tend to happen when the printer tried to heat the
fuser).

There should be no damage but thus far everything this guy
has told you has been wrong. Just start over as if he'd
told you nothing yet.

i own a bank,and i know how important ups is to every bank,usually we
equipt our bank with two diffierent styles of electiric power,but
nothing is impossible,we can not guess what will happen next,2yers
ago,my bank will have some issues with some other banks on accounts
transfer or something the same,usually it was caused by the power
shut,so our computer lost every information on the line,so i suggest u
have a ups for ur computer if ur work needs to .it is a must for u to
do that.
http//#

I don't see how your computer could get damaged, but a safe
way to proceed might be to buy a Kill-a-Watt watt meter at
(for example):
#
and measure the actual power draw of your computer. Often the
actual power draw is far less than the sum of the wattages given
for the components (which are usually maximums).

Once you know the actual power draw, you can better make a
judgment about your UPS.

-- Bob Day
#

Best Buy sells a 1500 VA UPS. This is puny compared to commercial UPSs.
The best way to tell how big a UPS you need is to measure the power that it actually used; you will need an ammeter to do this. The UPS should be rated for at least twice the wattage (not VA) that the computer uses, four times if you want decent run time.
A properly designed UPS will not damage a computer (not any more than a power failure). If the output voltage of the UPS drops too low it should shut down.

--
Mike Walsh
West Palm Beach, Florida, U.S.A.

...

I have 2 computers
- Barton XP 3200, ATI 9800XT, 2 stick of ddr, 3 HD, and a 400W power supply
a the first pc which is OC and water cooled using a Eheim 1250 pump (28W);
and
- Core 2 duo 6300 overclocked about 10% more with 8600GTS and 500W power
supply also slightly OC with 2 DDR2 sticks and 2 HD's;
- 17' CRT monitor connect by KVM;
- speaker, cable modem, WIFI

Can't say how much all this consumes but my UPS never goes beyond 50%-60%
capacity. I have an APC Smart UPS 750XL. This UPS has 600W of output
capacity thus all the stuff plugged into it consumes around 300W-350W. So
All I can say on my side is that I doubt that you need a 1000W UPS for only
one computer. That is unless your pc consumes all 1000W of the power supply
capacity which i doubt. Even if all your pc components were running at 100%,
i wonder if your pc would even reach anywhere close to 1000W. However, I
wonder if your sales person did not mean VA (volt-amps) instead.

Also I must say that a crt screen requires a heavy load on power on or when
performing a degauss, if all my components are running and I turn on the
screen afterwards or do a degauss, the UPS with dislike the heavy load and
will indicate an overload. However, it goes back to normal within 1 second
or 2. Thus, maybe my config would require a UPS with more VA (volt-amps) but
again, All i do is turn on the monitor before turning on a second PC first
and never bother with a degauss anyways. LCD monitors might not have this
issue if I'm not mistaken as they consume less power.

Hope this helps