[57288] in North American Network Operators' Group
Looking for advice on datacenter electrical/generator
daemon@ATHENA.MIT.EDU (Dan Lockwood)
Wed Apr 2 18:38:02 2003
Date: Wed, 2 Apr 2003 15:37:28 -0800
From: "Dan Lockwood" <dlockwood@coe.shastalink.k12.ca.us>
To: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
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Everyone,
=20
My organization is in a growth phase right now and within the next year
will find ourselves having outgrown our current 16KVa Symmetra. We have
comissioned an electrical engineer to make a recommendation as to what
is required to install a new 130Kva Liebert nPower UPS along with a
generator.
=20
Our current plan is to purchase the UPS with a minimal amount of
battery, approximately 15min worth; just enough to get the generator
running. Is this the better way to go? Or should we consider more
battery? What is everyone's experience with the Liebert line of
products? Any kudos or gripes? Our electrical engineer also
recommended that we purchase a Generac generator and transfer switch.
Any experiences with that company?
=20
He also is strongly opposed to us purchasing a natural gas generator
which seemed like a shoe-in for us. We have natual gas facilities and
didn't want to hassel with the diesel maintenance problems. Is a natual
gas generator something that we should consider?
=20
Additionally he recommneded that we place the HVAC and lighting upstream
from the UPS and use some sort of junction box to supply both the UPS
load and the HVAC. How do you "big guys" do it? Here is a link to the
diagram that he gave us today. Your thoughts are appreciated!
=20
http://www.shastalink.k12.ca.us/nanog/nanog.jpg
=20
Dan Lockwood
Microsoft Certified Professional
CompTIA Network+ Certified
Cisco Certified Network Associate
=20
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<BODY>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana=20
size=3D2>Everyone,</FONT></SPAN></DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana size=3D2>My =
organization is=20
in a growth phase right now and within the next year will find ourselves =
having=20
outgrown our current 16KVa Symmetra. We have comissioned an =
electrical=20
engineer to make a recommendation as to what is required to install a =
new 130Kva=20
Liebert nPower UPS along with a generator.</FONT></SPAN></DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana size=3D2>Our =
current plan=20
is to purchase the UPS with a minimal amount of battery, approximately =
15min=20
worth; just enough to get the generator running. Is this the =
better way to=20
go? Or should we consider more battery? What is everyone's=20
experience with the Liebert line of products? Any kudos or =
gripes? =20
Our electrical engineer also recommended that we purchase a Generac =
generator=20
and transfer switch. Any experiences with that=20
company?</FONT></SPAN></DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana size=3D2>He =
also is=20
strongly opposed to us purchasing a natural gas generator which seemed =
like a=20
shoe-in for us. We have natual gas facilities and didn't want to =
hassel=20
with the diesel maintenance problems. Is a natual gas generator =
something=20
that we should consider?</FONT></SPAN></DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana =
size=3D2>Additionally he=20
recommneded that we place the HVAC and lighting upstream from the UPS =
and use=20
some sort of junction box to supply both the UPS load and the =
HVAC. How do=20
you "big guys" do it? Here is a link to the diagram that he gave =
us=20
today. Your thoughts are appreciated!</FONT></SPAN></DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D699592423-02042003><FONT face=3DVerdana size=3D2><A=20
href=3D"http://www.shastalink.k12.ca.us/nanog/nanog.jpg">http://www.shast=
alink.k12.ca.us/nanog/nanog.jpg</A></FONT></SPAN></DIV>
<DIV> </DIV>
<DIV align=3Dleft><FONT face=3DVerdana size=3D2>Dan =
Lockwood</FONT></DIV>
<DIV align=3Dleft><FONT face=3DVerdana size=3D2>Microsoft Certified=20
Professional</FONT></DIV>
<DIV align=3Dleft><FONT face=3DVerdana size=3D2>CompTIA Network+=20
Certified</FONT></DIV>
<DIV align=3Dleft><FONT face=3DVerdana size=3D2>Cisco Certified Network=20
Associate</FONT></DIV>
<DIV> </DIV></BODY></HTML>
=00
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