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Bad UPS??

C

ClearH2O

Limp Gawd
Joined
Mar 31, 2005
Messages
242
Can a faulty UPS turn into a PSU "eater". I have had two PSU fail, one of them being an Antec, which lasted only for about 15min.
 
Nope just hooked up to it, but a there was a couple of lightning strikes near the house.

UPS model: Belkin 800VA [F6C800-USB]

#1 PSU: X-connect 500W

replacement PSU: Antec 300W (PP-303)

The Antec PSU never made it more than 15 min after plugging it in, and the Ultra was working fine up until the storm
 
Hmm... I can only imagine a UPS "killing" a PSU if the UPS was running on battery power. Because the DC (battery) is converted to AC (110V for the PSU,) if the voltage output is screwed up and putting out too much voltage, I imagine it could fry a PSU.

Although I'd like to think that protection on the power supply would kick in before it fried. :(

I wonder what would happen if the output voltage of the UPS was correct, but not the cycles. Is that even possible?

Here's another thought.... The Belkin UPS doesn't have that high of a joule rating, I believe. And they can "burn up" causing them to protect a lot less than advertised. One lightning hit can burn up the protection of the UPS. The second can go right through and fry whatever's plugged into it. That's why most power strips have "protected" LED's on them to tell you that they're up to the task.
 
When I fluked the UPS the Voltages were normal, but the Hz were going crazy. What else could be killing power supplies?
 
ClearH2O said:
When I fluked the UPS the Voltages were normal, but the Hz were going crazy. What else could be killing power supplies?
Click to expand...
Are you saying that when NOT running on battery, the output is not 60Hz +/- 1Hz?
 
I'm pretty sure the battery was not on. I think that somehow the lighning jacked with the circuitry and is causing the power to be "out of sync" if that is even the right word or possible.

I cracked open the Antec and cannot see anything physically wrong with it, is there a way to test certain parts of it.
 
ClearH2O said:
I'm pretty sure the battery was not on. I think that somehow the lighning jacked with the circuitry and is causing the power to be "out of sync" if that is even the right word or possible.

I cracked open the Antec and cannot see anything physically wrong with it, is there a way to test certain parts of it.
Click to expand...
When not on battery, it should just pass the line voltage through.

Very confusing, contact the UPS's tech support & see what they have to say.

Good Luck,
Dave ;)
 
davidhammock200 said:
When not on battery, it should just pass the line voltage through.

Very confusing, contact the UPS's tech support & see what they have to say.

Good Luck,
Dave ;)
Click to expand...

Not necessarily. If you have a UPS with boost and trim AVR it may try to compensate for what it thinks is unsafe voltage.
 
jonnyGURU said:
Not necessarily. If you have a UPS with boost and trim AVR it may try to compensate for what it thinks is unsafe voltage.
Click to expand...
Yes, I know but I don't believe that it can alter the frequency, can it? How?
 
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