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ups question | 8 comments (8 topical, editorial)

Re: ups question (3.00 / 0) (#3)
by TomW on Thu Feb 28th, 2008 at 07:38:53 AM MST
(User Info)

mikey;

Just FYI, some UPS units are "inverting" all the time. Even when on "grid". They run the inverter and just charge the battery at the same time.

I would suggest you test it on the UPS compared to plugged into a wall to be sure.

Just a gotcha I ran into one time a long time ago.

Good luck with it.

TomW

"Education consists mainly of what we have unlearned."--Mark Twain
[ Parent ]

Re: ups question (3.00 / 0) (#5)
by mikeyny on Thu Feb 28th, 2008 at 10:17:25 AM MST
(User Info)

The voltage is still 80 or so volts ac plugged in or not. The battery does measure 13 volts plugged in or not. I am still not sure why I only get 80 v ac. My meter seems to be ok, but I know sometimes you can get erroneous readings in certain situations. Thanks for the info. Either way it seems to work ok for now. I will probably end up using the battery for the small wind project I am hoping to build in the spring.

Mike
"I thought I made a mistake but I was wrong"
[ Parent ]

Re: ups question (3.00 / 0) (#6)
by ghurd on Thu Feb 28th, 2008 at 10:33:40 AM MST
(User Info)

I believe we both meant to compare how bright the lamp is when pluged into the wall, compared to when plugged into the UPS.

If the output is Really 80V, the lamp will be a lot less bright on UPS power than grid power.

I expect the UPS output is fine.
G-

[ Parent ]

ups question | 8 comments (8 topical, 0 editorial)

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