×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

UPS Room Temp.

UPS Room Temp.

UPS Room Temp.

(OP)
Does the room temp for a 40kw, 50kva 380volt have effect on operation or life of the equipment? Presently it is kept at 55 deg F.  Can the temp be raised to lower cooling costs?

RE: UPS Room Temp.

Absolutely....I would be willing to bet that you could cool to about 68deg, w/ an alarm setpoint of 70 to 72 deg.  55deg is too cold...hanging any meat too?  (sorry for the jibe)

Mike

RE: UPS Room Temp.


Some UPS models have internal temperature monitoring/reporting.  That may help substantiate your position.  
    

RE: UPS Room Temp.

look at the UPS's nameplate and/or instruction manual, it should have a spec for operation and storage temp limits.
HTH
saludos.
a.

RE: UPS Room Temp.

Or else you can import one from my country which will work upto 40 deg.C (104 deg.F). We recently bought with same configuration.


RE: UPS Room Temp.

The UPS electronics are not critical here, but the battery life is and it depends on the room temperature. With lower temperatures you extend the battery life. Cost of replacing batteries is usually significant.

RE: UPS Room Temp.

I agree with Ares, if your batteries are in the same room as the UPS, the battery temperature is a much bigger concern than the UPS temperature.

High temperature will shorten battery life as noted by Ares.

Low temperature is also a concern, as the lower the temperature the lower the output.  Batteries want to be at 77 degrees, your current 55 degree temperature is too cold for them.

C&D Batteries (http://www.cdpowercom.com/) also has some great battery information.

RE: UPS Room Temp.

The higher the temperature, the more power you'll get out of the batteries (in minutes) but the shorter the lifetime (in years).

The reverse also holds true.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources