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Was it $369.00 with shipping ?
Do a search on pricegrabber for a Tripplite SU1000XL
It also has that lifetime $250,000 insurance policy thrown in which I did not see on Mark's inverter on the TrippLite website.
John
On Thu, 20 Nov 2003 11:44:15 -0800 , "Able Trader" <abletrader@xxxxxxxxxxx> wrote:
>What did this cost you John and where did you purchase it please.
>
>Thanks,
>Mike
>
>
>
>----- Original Message -----
>From: "John Blucar" <blucar@xxxxxxxxxxxxxxxx>
>To: <omega-list@xxxxxxxxxx>
>Sent: Thursday, November 20, 2003 11:18 AM
>Subject: Mark's massive elec. backup system
>
>
>> OK, ok. Here's my "contribution".
>>
>> There very well may be a crucial flaw in Mark's massive elec. backup
>system (opinion of Tripplite technician).
>>
>> Always having admired Mark's massive elec. backup system for his computers
>(images on his website), I started investigating the same for my own use.
>>
>> (Of course all we have to go on with his system is what we see in the
>images and the descriptions.)
>>
>> What I discovered: Apparently he is using a TrippLite inverter connected
>to a surge strip to power his system(s) 24/7/365. He has a massive bank of
>batteries to supply the inverter in case of power outage.
>>
>> I called and asked a Tripplite tech to take a look at the system on the
>web (a second level up tech). His comments ? Beyond the electronic rocket
>science stuff he started with that I did not understand, he said that Mark's
>system is essentially different than your standard UPS system.
>>
>> This is because a standard UPS system supplies perfect sinewave 120 v
>power most all the time taking the power from the uitility company, and only
>rarely does the UPS kick in with batteries to provide modified sine wave
>power for short periods.
>>
>> On the other hand, as the images show Mark's system pulls modified sine
>wave power from the inverter 24/7/365. According to the tech, he said that
>it's iffy at best, that you have to consult the power supply manufacturers
>in your computers to be certain they approve. It's because even modified
>sine wave starts breaking down under heavier loads (like during an extended
>power outage), and then it becomes more like square wave, which can cook
>your computer power supply transformers, etc. Even if not loaded hard,
>modified sine wave still produces some pretty nasty harmonics that can mess
>with your electronics.
>>
>> The safer solution ? For a few dollars more you buy the Tripplite Smart
>Online SU series which produce a 24/7/365 perfect sine wave whether on
>battery power or on 120 volt utility co. power. Then you just add an
>external battery source as those do allow that. (This is what I just
>bought).
>>
>> http://www.tripplite.com/products/product.cfm?productID=2664
>>
>> They come in larger sizes if you need 'em.
>>
>> Anyway, that's my 2 cents.
>>
>>
>> John
>>
>>
>
>
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