Voltage fluctuation: IS there a good voltage Stabilizing UPS?

Discussion in 'BSNL broadband' started by goodyet, Jul 26, 2009.

  1. goodyet

    goodyet Member

    When I use my Netgear DG834G during day time, if there is a voltage fluctuation (low voltage), the power light goes off and it reboots. During night time(after 11 p.m. and before 6 a.m.) there will be hight voltage (because of it my router adapter went bad). Local JTO said that I shouldn't use internet during night time because there will be power in the neutral line as well. Is there a good UPS which will help me to get around this problem (both power backup and voltage stabilizer)?
  2. superprash2003

    superprash2003 New Member

    There are a lot of them.. APC is the best i believe!!
  3. goodyet

    goodyet Member

    Thank you
  4. meetdilip

    meetdilip Guest

    APC will be a wise choice.
  5. essbebe

    essbebe LEARNER

    BUY "ONline " UPS.
    Power available from unit whether Electricity
    board power is available or not ( * time specified )


    online ups is a double conversion(dual) ups which firstly
    converts AC power to D.c ,then D.c to A.C .the stored D.c
    form of electricity remains within the batteries. in

    what is the difference between ONLINE UPS and OFFLINE UPS?

    Source :
    Google search term : onlineUPS offline UPS
  6. goodyet

    goodyet Member

    Hello essbebe, can you tell me what will be the price range of an online ups. I would go for the one which gives 20 minutes power backup?
  7. essbebe

    essbebe LEARNER

    compared to a normal UPS
    ONline double conversion UPS costs almost five to ten times more.

    [​IMG]

    If you use laptop with battery backup,
    connecting the Modem directly to UPS battery,
    with suitable modifications,will keep your
    connection going so that you don't loose data.

    Mention modem model make and power required.
    9V or 12V AC or DC amperage about 1 amp.
    Polarity of plug ( Inner positive /tip usually ).
    or even a small 12V motor cycle battery will do !
    Last edited: Sep 6, 2011
  8. just4kix

    just4kix Guardian Angel Staff Member

    For a home setup, a standard 1 KVA UPS from a reputed company such as APC is more than sufficient. UPS have built-in stabilizer and the sine wave is also maintained at 50 Hz.

    If someone wants additional safety, buy a spike guard also.
  9. essbebe

    essbebe LEARNER

    Update :
    DG834g -(minus) 12 V DC 1 AMP . Check polarity of plug.
    Easy to connect to Battery. ( no additional requirements) .
    Any UPS will do for the computer /desktop,
    as modem will not get disconnected due to transients .
  10. goodyet

    goodyet Member

    Netgear DG834g v4 requires 12 volts (DC adapter), and I use a laptop. When there is power fluctuation (low voltage) the laptop (dell vostro 1400) does not go into battery mode. Even If I use utstarcom mode, it also doesn't reboot. But when I turn on refridgerator or CRT tv, or if someone turns on electric water pump in our area DG834g reboots. I don't have UPS now, like to buy one.
  11. just4kix

    just4kix Guardian Angel Staff Member

    You should buy a UPS from APC as suggested above.
  12. Luke Skywalker

    Luke Skywalker Jedi knight

    I don't think APC is offering such a good protection against this kind of brownouts. First check whether it is providing regulator or not.Online UPS are quite expensive. I think if APC one don't have regulator then you should purchase one or you will suffer from frequent discharging.

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