On Mon, 16 Jan 2006 17:28:33 GMT, (Gerard Bok) wrote:

On Mon, 16 Jan 2006 08:27:22 +0800, budgie
wrote:

On 15 Jan 2006 15:13:54 -0800, "
wrote:


I'm working on a 12v 75AH x 5 (ie 60v) ups hooked up to 10 PCs but
when the mains power
goes off computers go off b4 coming back some times some of them
stays on whiles the rest go off. Can someone tell me what is wrong and
what I can do.

If it really IS a UPS then it shouldn't be a case of "switching on fast enough"
- it should be running continuously and supplying the load from the rectified
line input.

No. UPS come in 2 flavours: on-line (like you describe) and
off-line (as OP obviously has).

You may only like the on-line variant (and with good reasons,
mostly) the majority of entry level UPS is of the off-line type.
(And even that may be a favourable situation, given their mtbf
:-)

I agree, but the nomenclature here seems to reserve the "uninterruptible" term
to the on-line types. Let's face it, the off-line devices aren't a no-break
system, so it's a bit of a stretch to call them uninterruptible when there IS an
interruption.

hence my comment "If it really IS a UPS.."