[BC] UPS Hell

Mike McCarthy towers at mre.com
Thu Feb 23 19:58:23 CST 2012


If a studio is that critical, two of everything should be used. That 
extends to UPS's and associated power systems as well.  It boggles my 
mind when I see a million dollar plant and a single UPS.

This why my new studio complex has the whole TOC and studios in 
switching power strips and parallel UPS's/power systems. If one UPS 
should fail, everything fails to the other one standing with no down 
time. Both are running at about 40% name plate capacity.

The only other option would be to use switching power strips and then 
fail over to a generator panel.  But then you loose all protection when 
that occurs. But at least the event doesn't kill your operation.

We used Giest switched rack mount strips.  UL listed and no fussing 
around.  We've tested them and computers stay up when we simulate a 
power interruption at the UPS.

Our new 16KVA Single phase UPS's are Legacy Power's Herytage series.  
Updated FERRUPS design. Legacy are the same folks who started BEST and 
sold to Eaton(Powerware).

MM

On 2/23/2012 11:46 AM, Warren Shulz wrote:
> In Chicago we have three  UPS stories to log in:
>
> On the other hand I have one at AM Tx and it has saved the bacon more that 1000 times in its life.
>
> These are all FERUPS Best Technology now APC.  Batteries are not reliable.
> Lack of use puts you at risk.  Battery life is 4 yrs.
>
> Warren Shulz
> WLS A/F Chicago



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