North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: UPS failure modes (was: fire at NAC)
On Thu, 29 May 2003, Simon Lockhart wrote: > On Thu May 29, 2003 at 04:29:13PM -0400, Alex Rubenstein wrote: > > From folks I've talked to (engineers and industry people), Powerware seems > > to be known as the UPS that just works. I've yet to talk to one person who > > had a powerware die on them. Myself included. > > We are a Powerware house. We had a large number of 3kVA and 6kVA units in > our previous data centre (no-one would stump up the cash for a large unit > so we had to buy them as we needed them). After about 5 years (very rough > figure), we've now had 3 or 4 units fail, sometimes in the UPS, sometimes > in the bypass unit. They all seem to be component failures (in the case > of the bypass unit, a leg broke off a small capacitor). I don't think we've > replaced any of the batteries in that time and they're still all holding charge > well, even at full load. Perhaps I should have been clear. In my entire post, sed s/powerware/powerware 9315/g > At our new site we have some 50kVA and 80kVA units that we inherited from the > previous owners. One is already exhibiting the signs of a failing fan, but > we have no idea what their history is before we moved in. Well, fans would fall under maintenance, no? Perhaps, also, someone is not changing filters, or whatnot. -- Alex Rubenstein, AR97, K2AHR, [email protected], latency, Al Reuben -- -- Net Access Corporation, 800-NET-ME-36, http://www.nac.net --
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