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| Thread ID: 111294 | 2010-07-21 09:27:00 | UPS | Cicero (40) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1120936 | 2010-07-21 09:27:00 | Mate from south of Kaitaia say he needs one of these due to endles power cuts. I had never heard of one? |
Cicero (40) | ||
| 1120937 | 2010-07-21 09:30:00 | They are pretty common....condition the power and give you a chance to do a safe shutdown. | Alex B (15479) | ||
| 1120938 | 2010-07-21 09:32:00 | Un-interruptible Power Supply. They'll only give him enough time to turn every off correctly unless he spends BIG money. |
decibel (11645) | ||
| 1120939 | 2010-07-21 09:38:00 | Mate from south of Kaitaia say he needs one of these due to endles power cuts. I had never heard of one? Uninterruptible Power Supply - just a fancy name for a bunch of lead-acid batteries that sit between your mains feed and your PC. You don't really see them in home environments, but you wouldn't (i hope) find a server room without one. Server's don't really like being shut down unexpectedly. :rolleyes: The other important function that good UPS's perform is to present your servers with a nice clean sine wave, filtering out the lumps, and potentially taking the hit if a large spike hits the grid. Better to lose a $10k UPS than $100k worth of servers/switches etc. Good UPS's also have a network card in them, so you can install software on your servers that receives a signal from the UPS when it's at, say, 5% power during a power cut. The software initializes soft shutdowns on each device. |
nofam (9009) | ||
| 1120940 | 2010-07-21 09:52:00 | Having a UPS even on a home PC can soon pay for itself. They dont have to be expensive ones, all the PC's here have a UPS, when theres a power problem ( power cut or Brown out) the battery cuts in and the PC keeps going, if the problem is longer than five minutes I turn the PC off, other wise an alarm similar sounding to a trucks backing beeping will be going consistently -- With four inside the house all going at once its one hell of a racket :D One story -- when the security company installed our alarm system, the idiot, drilled half way through a power cable in the roof, the UPS in the Office went off instantly - he just about crapped himself - if it wasn't for the UPS we would have never known -- maybe a fire as the + & - wires were getting rather warm. Nothing fancy, Similar to these (www.ascent.co.nz) but they do the job. |
wainuitech (129) | ||
| 1120941 | 2010-07-21 09:52:00 | I have one, a 650 W unit, and it does not allow the big PC to run very long at all as supplied. With an additional 100AH deep cycle battery helping the puny little 9 AH one supplied, it does give quite a fair while if I switch to a smaller PC. It also feeds a 12v fluorescent, and keeps the modem alive which is handy since I have naked ADSL and no power = no phone. We have had a few multi-hour outages over the last year or so, and I have not been seriously inconvenienced yet. I would not like to be without it, it gives the odd beep every couple of months as it switches in briefly during sagging voltage, but otherwise it is a background item. (The 100 AH battery is charged by a solar panel btw, I doubt the UPS charger would like to tackle charging the extra capacity.) A brief stab of the UPS power button mutes the infernal beeping that occurs when it is running from battery power, | R2x1 (4628) | ||
| 1120942 | 2010-07-21 10:13:00 | ups are moderately common in homes, especially in rural areas. there's two main types, the first just simply switches over to battery backup when the power goes off. the 2nd is much better as it provides perfect output regardless of the main supply voltage. this stops "brown outs" (low voltage) which is very common in rural areas and is a big killer of electronics. just be aware that often ones that advertise "power conditioning" simply have a filter. one big catch is cost of replacement batteries and getting one big enough to run a pc (CRT screens need a lot more power). recommend 1000VA. |
tweak'e (69) | ||
| 1120943 | 2010-07-21 11:27:00 | One "trick" I've done in the past, is after a person buys a UPS from me, and most of the time they dont really understand what it does. After its been on for a while, I demonstrate by saying "what would happen normally in a power cut" -- Answer: the PC shuts down. I reach over, pull the plug out the wall, standing there with the power plug in my hand, twirling it around - they look :horrified :eek: -- oh look the PC is still going fine. :D |
wainuitech (129) | ||
| 1120944 | 2010-07-21 11:32:00 | I have one, a 650 W unit, and it does not allow the big PC to run very long at all as supplied. With an additional 100AH deep cycle battery helping the puny little 9 AH one supplied, it does give quite a fair while if I switch to a smaller PC. It also feeds a 12v fluorescent, and keeps the modem alive which is handy since I have naked ADSL and no power = no phone. We have had a few multi-hour outages over the last year or so, and I have not been seriously inconvenienced yet. I would not like to be without it, it gives the odd beep every couple of months as it switches in briefly during sagging voltage, but otherwise it is a background item. (The 100 AH battery is charged by a solar panel btw, I doubt the UPS charger would like to tackle charging the extra capacity.) A brief stab of the UPS power button mutes the infernal beeping that occurs when it is running from battery power, What a set up R2, you one of these survivalists lol. Have you got a cellar fill of canned food and a gun cupboard and heaps of ammo as well :) |
prefect (6291) | ||
| 1120945 | 2010-07-21 11:40:00 | desktop replacment laptop (or any laptop) has this ability when on mains too. | angry (15305) | ||
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