UPS backup power

Kronk · #1 10-10-2006, 11:38 PM

APC su1400net

http://www.apcc.com/resource/include..._sku=SU1400NET

look at the "Batteries and Runtime" values on the spec sheet these are correct, the original spec sheet i looked at was INCORRECT it was for a rack mounted model. I think you can expect alot more time out of the UPS than listed if you are running PC lighting.

Here are a couple pics of the units

Thanks,
Ken

untamed · #2 10-12-2006, 05:42 AM

I need one of these...but know very little about them. Does anyone have any advice they could PM me about these?

Chin_Lee · #3 10-12-2006, 06:28 AM

Quote:

Originally Posted by untamed

I need one of these...but know very little about them. Does anyone have any advice they could PM me about these?

they provide electricity via batteries in the event of a power outage. Depending on the size of battery and power load will determine how long these devices will provide electricity. Most people keep one or two powerheads running just to keep the circulation.

BCWolfen · #4 10-12-2006, 06:15 PM

I am also interested in one. Let us know when they arrive and are ready.

Redrover · #5 11-03-2006, 03:50 AM

This is a friend of Marc...Ron's the name from Abbotsford
For sure I'll take One
Contact at caus@shaw.ca

untamed · #6 10-13-2006, 05:33 AM

Quote:

Originally Posted by Chin_Lee

they provide electricity via batteries in the event of a power outage. Depending on the size of battery and power load will determine how long these devices will provide electricity. Most people keep one or two powerheads running just to keep the circulation.

I'm laughing...OK, maybe I exagerrated just a bit when I said that I knew very little about UPS. This much..., I did know.

I was hoping someone with some electrical background and experience with UPS's could confirm that this is an appropriate unit for our uses. I've heard some about the different types of power delivered being hard on pumps. If you look at the apcc website, they make many, many models...most of which were designed to power computers, not pumps.

DiscusZ · #7 10-13-2006, 06:14 AM

Thats the same one I have right now (not on my tank though) its on my file server in the basement. bought it usedd as well..

midgetwaiter · #8 10-13-2006, 07:51 AM

Quote:

Originally Posted by untamed

I was hoping someone with some electrical background and experience with UPS's could confirm that this is an appropriate unit for our uses. I've heard some about the different types of power delivered being hard on pumps. If you look at the apcc website, they make many, many models...most of which were designed to power computers, not pumps.

Hmm, I do know a little bit about UPS systems and that sounds a little strange to me. There are 4 basic parts in a regular UPS, a battery, a charger for the battery, a relay and inverter that modifies the DC power from the battery back to 120v. When the power is interrupted to the system the relay trips and power is drawn from the battery via the inverter. Basically the power provided by the UPS is the same as it is coming out of the wall. You can build one of these with a car battery for under $100.

A continuous UPS is a better unit and if I'm not mistaken these units are continuous. In this case the power coming into the unit is run though a transformer and to the batteries then through the inverter and to whatever you are running off the UPS. There are 2 advantages to this, there is no millisecond drop when the unit switches to battery in the case of an interruption and because the batteries need very "clean" power the transformer must provide an almost perfect wave and constant voltage. You won't get any of the little dips and spikes out of a good UPS that you get from mains power, I can't see that being bad for a pump.

Unless there is something I don't understand about pump motors I don't see where any damage could result.

jgoldsney · #9 10-13-2006, 01:50 PM

some inverters don't put out a true sine wave AC signal. This can cause issues with some electronic equipment. I have some portable flash units for my camera and I looked in to running these off of an inverter but I would have had to purchase a more expensive inverter to avoid equipment dammage.

midgetwaiter · #10 10-13-2006, 06:17 PM

Quote:

Originally Posted by jgoldsney

some inverters don't put out a true sine wave AC signal. This can cause issues with some electronic equipment. I have some portable flash units for my camera and I looked in to running these off of an inverter but I would have had to purchase a more expensive inverter to avoid equipment dammage.

This is true but the units in question are do put out a true sine wave.