What kinds of surge protectors/APC's do you guys use?

Discussion in 'Computer Cases, Power Supplies and Cooling' started by The VCR King, Jun 6, 2016.

  1. The VCR King

    The VCR King Well-Known Member

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    Where I live in ohio, I get a lot of storms and during storms and even light rain, all my lights will flicker lightly or my electric will go out then instantly come back on... the electric in my neighborhood isnt exactly great and I know it's not doing my PC any good (not that it has enough issues anyways :rolleyes:). Right now I have it on a Belkin Surgemaster power strip but I know that isn't enough.

    What kind of APC's do you guys run on here? Isn't an APC basically just a huge power inverter?
     
  2. voyagerfan99

    voyagerfan99 Master of Turning Things Off and Back On Again Staff Member

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    No. APC is a brand of UPS (Uninterruptable Power Supply, also known as a battery-backup).

    A UPS can definitely help with power surges and brown-outs, and provide equipment with more constant and clean power. Battery time is dependent on how much money you spend and how long you want the system to run on battery.

    I have a generic APC Smart UPS, but it's only connected to my server so that my VM's don't all just go pooey when the power goes out. I get about 5-8 minutes of run time on battery with it, so it gives me time to log into the host and shut down all the VM's.
     
  3. beers

    beers Moderator Staff Member

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  4. The VCR King

    The VCR King Well-Known Member

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    Oh okay. I thought they were called APCs. My grandpa used to work for a local school district and he has all sorts of old computer crap he's gotten from them. He has at least 20 of the old beige APC's laying around in his garage. Are the batteries in those replacable, because if they are, I might ask Grandpa if I can snatch one of those for myself...
     
  5. voyagerfan99

    voyagerfan99 Master of Turning Things Off and Back On Again Staff Member

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    They are, but if its beige, they're not very good. You'd be better off getting something new.
     
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  6. Intel_man

    Intel_man VIP Member

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    Battery tech has gone a long way since the "beige" days.
     
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  7. The VCR King

    The VCR King Well-Known Member

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    No problem. Would it still be okay if I used a "beige brick" until I got a good newer one or would it be better to just not use one at all?
     
  8. voyagerfan99

    voyagerfan99 Master of Turning Things Off and Back On Again Staff Member

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    You do whatever you want.
     
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  9. beers

    beers Moderator Staff Member

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    Depending on the PSU and it having Active PFC, you might see issues when it flips onto battery if it's not a 'pure sine' type of unit.
     
  10. The VCR King

    The VCR King Well-Known Member

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    Oh ok then, I'd rather not risk it.
     
  11. beers

    beers Moderator Staff Member

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    I wouldn't say there's much risk, it just has a chance of not working during that transition.

    I'd save they money you would use on batteries to just put toward the 'real PC parts' fund instead.
     
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  12. Okedokey

    Okedokey Well-Known Member

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    How will active PFC be important in a DC load?
     
  13. Geoff

    Geoff VIP Member

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    Don't bother replacing the batteries in that 20 year old unit, just get a new UPS.

    We picked up two new Schneider Electric UPS racks such as these:

    [​IMG]
     
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  14. beers

    beers Moderator Staff Member

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    The waveform out of the inverter in the UPS, which converts the battery's DC output into AC, takes a different shape. It's not uncommon for units with active PFC to fail to function once the unit flips over to battery and begins producing the modified sine wave noted below.

    [​IMG]

    Here's a decent read:
    http://www.vicorpower.com/documents/application_notes/an1_active-pfc.pdf
     
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  15. Okedokey

    Okedokey Well-Known Member

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    Yeah, there is no way in the world that power factor control is an issue in ones home PC. Even with the small AC to DC rectification, the problem is almost nonexistent unless you have a seriously cheap PSU and the switch time is very slow.
     

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