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Electronics & Appliances Uninterruptible Power Supply

Discussion in 'Businesses - Services - Products' started by Rye83, Feb 9, 2021.

  1. Rye83

    Rye83 with pastrami Admin Secured Account Highly Rated Poster SC Connoisseur Veteran Army

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    I see a ProLink 1200VA 720W for sale on Lazada for P5500 (P1k shipping). Does this sound about right for the price? Can this product, or another quality/reliable brand, be sourced locally cheaper?

    A couple other questions before I drop nearly P7k:
    1. How long would one of these keep a modem and wifi running if they were the only things plugged into it?
    2. If you are familiar with this brand does it do that annoying beeping sound when the power goes out? (Every UPS we had in the military did this when the generators went out. It was very annoying to have 4+ of these things beeping out of sync in the office.)
    3. If anyone has FilProducts does the internet stay on during brownouts if power is supplied to the modem?


     
  2. Best Answer:
    Post #4 by djfinn6230, Feb 9, 2021 (5 points)
  3. Show Pony

    Show Pony DI Forum Patron Highly Rated Poster Showcase Reviewer

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    I have Filproducts fiber-optic here in Dauin. The internet is available during a brownout.

    Not sure how long a UPS will run during a brown. The operating time depends on the battery size and load.
    Here is a rough calculation (the operative word is ROUGH). A couple of weeks ag0 I was looking at a UPS on Lazada and they do not give much in the way of specification.
    The unit that had some specs had a 12 volt lead-acid battery rated for 8 amp hours. So 12 volts times 8 amp hours equals 96 watt hour. The UPS should be able to feed a 96 watt load for 1 hour. If the load is only 48 watts the operating time would be 2 hours...etc.
    I don't know what the voltage losses would be across the IGBT inverter. Whatever voltage lost across the IGBT's should be subtracted from the 12 volts.
     
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  4. Show Pony

    Show Pony DI Forum Patron Highly Rated Poster Showcase Reviewer

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    Slightly off topic but related to Lazada.
    Last week I browsed the Lazada website. A day later I received a text message on my phone:
    From MICROSOFT
    "security info for d******yahoo.ca was replaced.
    Visit https://account.live.com/p"

    I didn't visit the site because the message smelled fishy. Not sure why Microsoft would have any interest in my Yahoo email account. Was this some sort of phishing scam?
     
  5. djfinn6230

    djfinn6230 DI Senior Member

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    I didn’t check any of the local shops because it is easier just to purchase from lazada rather than going into town, trying to park and finding out they had nothing at 2 or 3 different places.

    It would seem that there should be a simple math equation to estimate the time up but there really isn’t. APC is one if the largest UPS manufacturers and they say that their 1000 VA 550 watt unit will keep 150 watts running for about 10 minutes. Your modem plus wifi is probably around 30 watts. By using the same ratios you would get about 60-70 minutes which based on my experience seems about right. That is with just the 30 watt modem-router connected. I think the Fil Products is one combined modem-router powered by a 15 watt Max wall watt in which case you may get 2 to 2.5 hours. That’s about it but I may be off by +/- an hour.

    I would assume that the annoying beeping sound is there. I have 2 different brands which beeped like that and I had one in the US that had the annoying beep.

    We have Fil Products too. The internet has always stayed up during brownouts.


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    Rye83

    Rye83 with pastrami Admin Secured Account Highly Rated Poster SC Connoisseur Veteran Army

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    Thanks for the reply. I agree about buying locally. Far to much of a pain to go to a bunch of different locations just to come up empty handed or, even worse, find that the product is available but costs more than just buying it online, even with the shipping fees included. (I went to Robinson's to buy some shoes and they wanted P8k for some Adidas shoes that were selling for 3k on the Adidas website (with free shipping. :meh:).

    Do you think P7k is reasonable for the UPS mentioned in the OP?
     
  7. djfinn6230

    djfinn6230 DI Senior Member

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    There is a Prolink 1201SFT in lazada fir 4970.00php (great price) + 1200php shipping to Valencia which is more like 6K but even 7K is great fir 1200VA. Maybe that is the same one you are talking about.


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  8. OP
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    Rye83

    Rye83 with pastrami Admin Secured Account Highly Rated Poster SC Connoisseur Veteran Army

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    Screenshot_20210209-121854.png
    One is an SFC model, the other is SFT. It is not clear what the major difference is on the ProLink website. I think I'll just go for the sightly cheaper one.
     
  9. jimeve

    jimeve DI Forum Luminary Highly Rated Poster Showcase Reviewer Veteran Army

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  10. djfinn6230

    djfinn6230 DI Senior Member

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    Most of these are modified sine wave output and that is ok for most consumer electronics like TV’s, PC’s and such. Motor and transformer loads (not most AC Adapters) might heat up a bit with square wave or sawtooth-like waves. Modified sine is a good compromise for consumer applications in my opinion. This I think is what you call simulated. I could explain why this is true for most consumer loads including pc’s, modems, routers, stereos and TVs but I do not want to bore the group. PM me if you like. All of them are actually simulated sine but these are a bit choppy on the sine wave curve and-still ok.


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  11. djfinn6230

    djfinn6230 DI Senior Member

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    Did some hacker change your password for some yahoo email address that you reference on your MS live account? If you don’t recognize it, this doesn’t sound right at all and I would begin changing passwords on important applications. But that’s just me; most others are more knowledgeable than neon this sort of thing.


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