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11.Highly reliable.
2.Small footprint.
3.Scalable
4.Highly efficient.
5.Flexible to adopt in different architecture.
6.No single point of failure.
7.High level of Intelligence.
Because I live in an area that sometimes has fairly long power outages (a day or more) due to tornado damage, I really am also interested in the total W-hrs the UPS can provide. Also think I would only accept a "somewhat" sinusoidal output, but I'm really not knowledgeable re that issue.
In other words, unlike Richard, I would like a REALLY BIG battery!
Price is also very important!
But I'm an EE. The general public may not understand these UPS features.
2Thank you for your comment. My understanding is that the "power strips" that I plug all my digital stuff into contain MOV overvoltage suppression devices. But I suspect the power line was not the only problem (except that my laptop got completely burned out by the lightning strike and it appeared to burn out from the AC-line-based DC charger input). Most of my damage, however, was to digital interconnect circuits, ethernet and HDMI cable connections. A friend who lives in a high lightning area (in Florida) recommended I get a UPS that isolates the loads from the AC line. I wonder if a UPS can help ameliorate surges in such digital cabling?
They usually forget/ try to forget those a few batteries in their UPS's. So whenevere they need the UPS operates as a mains backup in a storm or blackout, but it doesn't, then they remember the UPS needs a service and battery replacement.
Thank you for the interesting comment. Perhaps battery life and maintenance requirements should be an important UPS feature??? Can you give more details? Are these problems mostly for large (larger than, say, a single computer) power installations?
The last two significant power outages I had (caused by tornadoes) lasted 1 day and 5 days. That's why I am still interested in high W-hr UPS battery backups. And, I forgot to say that the laptop charger (which appears to have destroyed my laptop) I used was NOT plugged into an MOV-based strip (mea culpa!).
1I had wrote they usually forget/try to forget batteries.
Honestly, those small for a few computers at home or in office are being forgotten. But for those big high kWh rating the cost of battery replacement is much considerable. Usually some people try to forget or postpond such an expensive replacement, until the first tornado !
A surge protection device installed in a UPS especially low power is not usual. Better to add this device upstream at the entrance of your home near the electrical panel. This is where it will ne the most efficient to protect against lightning, surge etc....The UPS like any other electrical will also suffer from those surge. Yes it may protect the equipment behind but might be destroyed also by the line surge. If well installed by qualified people, a surge protection device work once during lightning and then need replacement (like a fuse) after tripping. Consider UPS to cover power during blackout, or brownout yes but not to protect against surge etc....
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3 days ago
1FOR YOUR PHILIPPINE ELECTRICAL CONCERNS...NEEDS...ORDERS:KINDLY EMAIL US: SAFEELECTRICAL2013@GMAIL.COM
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