power outage got me :(

[BeanAnimal]

laverda, it's a fire (or failure) waiting to happen. I have intimate knowledge of UPS systems (it's part of what I do for a living). My advice is merely to try and save others grief.

The extra heat is due to the squared off wave form. Under some circumstances, the motor may stall or may not rotate. As the UPS charge runs down, the UPS will try to compensate the output (boost mode) and will further degrade the signal. The switchmode PSU in your computer will shut down when it's undervoltaged. The motor however will just draw more current. This also can severely damage the UPS or motor.

Honestly, the bottom of the line APC units don't have much in the way of output protection and the output transistors are simply not heatsinked to handle inductive loads.

I am not calling you a liar or stupid. I am just saying your setup is not safe. I am also advising others not to use the same type of setup.


Yes a larger sump would go a long way to helping solve your specific problem.

 

[chinaman4u]

I use a ups for a small pump to keep water circulating. I get them cheap at my local PSU university salvage store maybe you should try a school near you.

Though Bean has made a good point about the hazards of this type of setup.

 

[Rhas]

Thanks for all the responses guys.... I have a lot to think about...A generator may be the best route ( mmmmmm cold beer ) lol


Thanks again

 

[wds21921]

Run-time info on the liebert GXT2 series

Typical Battery Back-up Time
@ Full Load 17 minutes
Typical Battery Back-up Time
@ Half Load 44 minutes
Recharge Time 5 Hours to 95% capacity after full discharge into 100% load

One hour usage for almost $500? Not very efficient if I'm reading this correctly.

 

[wds21921]

Doh my bad, that's the recharge time not the runtime.

 

[bureau13]

I just picked up a couple small battery powered air pumps. The cool think about this little guys (Penn Plax B11? Something like that) is that you plug them in and they sense when the AC power goes out, and turn on. As soon as AC returns, they shut off. The only thing they don't do is recharge the battery when the AC is on, but they're only about $15 each, so I'm not complaining. For longer outages, I have a generator already, but its a big loud Briggs & Stratton, and I can't run it at night. During the post-Wilma outage, I lost fish because my generator ran out of gas and I didn't have these automatic air pumps back then.

jds

 

[wds21921]

Good move and smart compromise. I'd love to have a generator also but I live in an apartment so unless it was a long term power outage I'd be fighting my landlord.
The generator does go back to the "you have to catch it in time" debate but the automatic pumps at least provide good circulation without regard to having to physically monitor anything.