Micheal Houston • The most important UPS feature for End Customers, well, this question got more vote for the price, i don't understand, why? for End Customers, from the manufacturer direct sale to them, the price surely cheaper than from the distributor or wholesaler, that's true, but End Customers, usually, all them not engineers, they may have a little knowledge about the UPS, even they told you, the loads like 1 refrigerator 2 TV, 3 fans, 4 air conditions, 5 bulbs ...etc. and voltage, not sure about other things, A single slip may cause lasting sorrow! when they have the UPS, and latter found something wrong, what's next?
Rathnakumar D • In customers opinion & expectation the UPS should adapt to the following features. 1.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.
Robert Scott • Actually, I'm thinking about getting a UPS right now. A recent lightning strike to my house killed a bunch of my electronic devices (computer/router/TV/wired ethernet connections) despite the use of MOV-based AC power strips. So I'm only interested in UPS products that have reasonable isolation to the the AC power line.
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.
Richard Haigh • Robert - for a small - sub 10kVA installation, better to have a very high quality battery with a short time, a TVSS on the grid input and a generator for the long outage with the money you save.
Thank 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?
Mohmd Firzabdi • Most of clients have problem with maintanance and battery service. 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!).
Mohmd Firzabdi • Robert, I 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 !
Robert Scott • Richard, Thank you. I actually have a 60 Hz AC isolation transformer, but don't know anything about "comms line" surge devices. Any suggestions for sources?
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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.
1Thank 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 !