[labnetwork] Power Conditioning?

[Mario Portillo]

In my worldwide travels I see local UPS units with battery back up (not ten seconds) for the critical systems is a money saving and way to go, all pieces in the entire fab is an overkill.

My two cents...Regards
 
Mario A. Portillo Sr.
HIGH'born Technology USA Inc..
Semiconductor Equipment Services
8130 Glades Road, #229
Boca Raton, FL 33434
561 470-1975 office
561 504-0244 cell
hbtusainc at yahoo.com
www.hbtusainc.com


________________________________
From: Dennis Schweiger <schweig at umich.edu>
To: "Aebersold,Julia W." <julia.aebersold at louisville.edu> 
Cc: "labnetwork at mtl.mit.edu" <labnetwork at mtl.mit.edu> 
Sent: Thursday, February 26, 2015 9:41 AM
Subject: Re: [labnetwork] Power Conditioning?



When we built the addition to our existing fab, we looked into something that would allow us to ride through the 1-10 second power interruptions that seemed to plague this area.  We designed our entire power distribution grid for the new addition around a flywheel  based system, but as of yet, have never proceeded any farther with the implementation.  The three biggest hurdles are cost (at the time it was about $1K/Kw), sizing the unit (both in capacity, and physical location), and finally determining which equipment, or parts of equipment, should be backed up.  We were looking at a 500Kw unit, which wasn't large enough to back up everything, but it would have captured all of the computer systems, cryo pumps, and assorted electronic hardware.  To back up (ride through) for the entire new facility, we would have needed somewhere between 800-900 Kw.  We've been on-line with the new facility since about 2010, and have managed OK without the fly wheel system, however we have added local UPS units at critical locations.  The flywheel system would have only helped in the new fab areas.  We would still have had about half of the facility (the original fab areas) unsupported.

We also have a 60Kw UPS that backs up our life safety systems (computers, gas detection, several dry pumps, some abatement), which is backed up by one of our natural gas fired generators.

We've found, that by instilling a 24/7 technical on-call program (voluntary in participation), we've been able to manage the power disturbance risks, and provide a more cost effective support for the entire fab operation.


DennisSchweiger
University of Michigan/LNF
 
734.647.2055 Ofc


On Tue, Feb 24, 2015 at 7:56 PM, <julia.aebersold at louisville.edu> wrote:


>
>
>Hello everyone.  Due to the recent weather here in the Midwest we have experienced several instances of power surges due to utility transformers either blowing up or other issues.  As a result we have experienced some damage to our equipment.  I am thinking of pursuing a variety of power conditioners to help nullify these harmful events.  However, I wanted to tap into our wonderful online resources before dropping any funds.
> 
>Opinion or other suggestions?
> 
>Cheers!
> 
>Julia Aebersold, Ph.D.
>Cleanroom Manager
>Micro/Nano Technology Center
>University of Louisville
>Shumaker Research Building, Room 233
>2210 South Brook Street
>Louisville, KY  40292
> 
>502-852-1572
>http://louisville.edu/micronano/
> 
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