[geeks] Memo to self: try not to destroy UPSs

Kris Kirby geeks at sunhelp.org
Mon Jun 18 20:33:18 CDT 2001


On Mon, 18 Jun 2001, James Fogg wrote:
> This is courting the devil.

The SmartUPS has a fan running 24/7 mounted directly over the heatsinks
to move air. That's not something they come from the factory with. I did
try to think this through. The idea is that, while almost certainly
overloaded, the Sine UPS carries most of the load until it fails, at which
point the smaller individual UPSs kick in. If my 3KWs were here, it'd be a
different story. 

> If you want a discussion of switching transients, RMS voltage and MOVs we can
> have a go at it. If you want the voice of experience, ask one of my former
> techs about the flaming UPS.

That's one thing I hadn't thought of lately: MOVs. Need to get some of
those into the mix. I have had a UPS destroy itself in my company; it
tried to set my passenger seat on fire!

-----
Kris Kirby, KE4AHR          | TGIFreeBSD... 'Nuff said.
<kris at nospam.catonic.net>   |    
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"Fate, it seems, is not without a sense of irony."




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