Heat loss

[southward]

Anyone got any information of heat loss from electrical equipment eg.MCCs, switchgear etc.

 

[ScottyUK]

Read your question to yourself: do you think you have included enough information for anyone to be able to answer it? Are you interested in where the loss occurs, how much heat is dissipated, how it gets out of the enclosure... what else? We can only work with the information you put forward, which in this case ain't enough. Add a bit of detail - we don't charge by the word (if only we could ) and someone will almost certainly be able to help.


----------------------------------

If we learn from our mistakes I'm getting a great education!

 

[dpc]

Yes, I do have some information. You'll need to be more specific.

 

[southward]

Got a room full of mcc , switchgear, transformers etc. What I would like is a way of estimating the heat given out by this equipment as a percentage of the ratings

 

[ScottyUK]

GAMBICA is an industry body in the UK. Pages 6 & 7 give some information on example losses for IEC equipment.

http://www.gambica.org.uk/web_images/documents/publications/GAMBICA Guide to 60439-1 04Dec06.pdf

Not sure if the IEC standard 60439 contains anything more - I'll have a look when I get to work.


----------------------------------

If we learn from our mistakes I'm getting a great education!

 

[jghrist]

You might find what you need in some HVAC references. Try searching the Mechanical Engineering forum.

 

[jraef]

Yes, I have found that in the past in HVAC references for estimating heat loading. No idea if it's accurate though.

Also check out these older threads:
thread238-211333
thread403-228662


"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
For the best use of Eng-Tips, please click here -> faq731-376

 

[tulum]

Call the manufacturer of each piece of gear. They should have the answer.... otherwise start with the biggest heat loss items (such as transformers) and work your way down.

Regards,
TULUM