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UPS in series?
Has anybody tried getting longer run times from UPS's by plugging
one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) -- Ron Hardin On the internet, nobody knows you're a jerk. |
UPS in series?
On Sat, 10 Mar 2007 10:14:47 GMT, Ron Hardin
wrote: Has anybody tried getting longer run times from UPS's by plugging one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) Why not just take the battery out of the 2nd one and put it in parallel with the battery in the first one? It would be more efficient. |
UPS in series?
"Brenda Ann" wrote in message ... "Ron Hardin" wrote in message ... Has anybody tried getting longer run times from UPS's by plugging one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) -- You're not going to extend your runtime near as much as you might think. If you had an UPS with a clean enough pseudo-sine waveform to even get the next one in line to power up stably (and you have to get into some very very good ones to do that, they basically have to be generator rated), then you have to deal with the issue of the other UPS'es in the chain not being 100% efficient, so you lose a lot of what you would have gotten from that first unit in the line. This of course follows up the chain. Just buy a bigger UPS!!! I use to sell them Burr |
UPS in series?
Brenda Ann wrote:
You're not going to extend your runtime near as much as you might think. If you had an UPS with a clean enough pseudo-sine waveform to even get the next one in line to power up stably (and you have to get into some very very good ones to do that, they basically have to be generator rated), then you have to deal with the issue of the other UPS'es in the chain not being 100% efficient, so you lose a lot of what you would have gotten from that first unit in the line. This of course follows up the chain. Doesn't the UPS just pass along the input to the output as long as it's ok power? So I don't see the loss. The second UPS just passes along the output of the first UPS. -- Ron Hardin On the internet, nobody knows you're a jerk. |
UPS in series?
On Sat, 10 Mar 2007 16:50:58 GMT, Ron Hardin
wrote: Brenda Ann wrote: You're not going to extend your runtime near as much as you might think. If you had an UPS with a clean enough pseudo-sine waveform to even get the next one in line to power up stably (and you have to get into some very very good ones to do that, they basically have to be generator rated), then you have to deal with the issue of the other UPS'es in the chain not being 100% efficient, so you lose a lot of what you would have gotten from that first unit in the line. This of course follows up the chain. Doesn't the UPS just pass along the input to the output as long as it's ok power? So I don't see the loss. The second UPS just passes along the output of the first UPS. That's more of a battery backup than a real UPS. |
UPS in series?
If you want EXTENDED time, wait til the batteries die, remove them and run
wires to a car battery (can even be outside in a battery box ) DO NOT allow the internal charger in the UPS to charge the car battery, put a diode in line to block current going to the car battery but allowing the battery voltage to 'flow' to the UPS. A small trickle charger or floating battery charger can keep the car battery at full charge. You can use an old heavy extension cord ( like those orange ones you get to use outside ) to connect the battery and USP. Useful backup time should be anywhere from 6 to 24 hours depending on the draw ( how much your trying to power) and the quality ( number of plates ) of the battery. BE SURE the UPS uses batteries totaling 12 volts, before you even attempt this. Any damage you cause on your own equipment is your own fault ...... so if you don't know what your doing don't even try. and if you do ..... don't blame me :) "Ron Hardin" wrote in message ... Has anybody tried getting longer run times from UPS's by plugging one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) -- Ron Hardin On the internet, nobody knows you're a jerk. |
UPS in series?
In article ,
Ron Hardin wrote: Brenda Ann wrote: You're not going to extend your runtime near as much as you might think. If you had an UPS with a clean enough pseudo-sine waveform to even get the next one in line to power up stably (and you have to get into some very very good ones to do that, they basically have to be generator rated), then you have to deal with the issue of the other UPS'es in the chain not being 100% efficient, so you lose a lot of what you would have gotten from that first unit in the line. This of course follows up the chain. Doesn't the UPS just pass along the input to the output as long as it's ok power? So I don't see the loss. The second UPS just passes along the output of the first UPS. I have not done this but your expectation sounds reasonable. Many UPS units produce a trapezoid shape output but again I do not see a problem plugging one UPS into another. -- Telamon Ventura, California |
UPS in series?
"Ron Hardin" wrote in message ... Brenda Ann wrote: You're not going to extend your runtime near as much as you might think. If you had an UPS with a clean enough pseudo-sine waveform to even get the next one in line to power up stably (and you have to get into some very very good ones to do that, they basically have to be generator rated), then you have to deal with the issue of the other UPS'es in the chain not being 100% efficient, so you lose a lot of what you would have gotten from that first unit in the line. This of course follows up the chain. Doesn't the UPS just pass along the input to the output as long as it's ok power? So I don't see the loss. The second UPS just passes along the output of the first UPS. -- Ron Hardin On the internet, nobody knows you're a jerk. Ron, No! There power is checked to be sure it is 60cyc, close to 120 and steadies and it is filtered. Read the papers that came with it. Remember, you get what you pay for. I like "Minuteman". For your radio the way I do it is run them off a 12v car battery with a charger hooded to them. I can "take" the charger off if I hear Norse or just when I am DXing. If the power goes off they will still run for hours if you have a good battery and you can shut down the radios you don't have to have. ALWAYS HAVE A GOOD GROUND ROD GROUND for the radios and antennas! Burr |
UPS in series?
David wrote:
Why not just take the battery out of the 2nd one and put it in parallel with the battery in the first one? It would be more efficient. It would be, but there's a catch. When the time comes to recharge the now much bigger battery, the original charging circuit probably couldn't handle the extra current. The greater the plate area, the more it starts looking like a short circuit as far as the circuitry goes. Most things being now built are made down to a cost instead of up to a quality standard. mike |
UPS in series?
On Sun, 11 Mar 2007 01:27:50 GMT, m II wrote:
David wrote: Why not just take the battery out of the 2nd one and put it in parallel with the battery in the first one? It would be more efficient. It would be, but there's a catch. When the time comes to recharge the now much bigger battery, the original charging circuit probably couldn't handle the extra current. The greater the plate area, the more it starts looking like a short circuit as far as the circuitry goes. Most things being now built are made down to a cost instead of up to a quality standard. mike I've done this succesfully. I'm guessing the current is clamped, but the Triplett kept 3 big-ass batteries charged in a microwave shack. |
UPS in series?
www.devilfinder.com APC Model 1000
is what I use.My Velocity Micro ProMagix tower computer and NEC Multisync 22 inch flat screen CRT computer monitor are power hogs.When the power goes out here due to stormy weather,I shut my computer down and wait a while.Sure,laptops don't use much power,but I have no need,nor do I want a laptop computer. cuhulin |
UPS in series?
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UPS in series?
David wrote:
On Sun, 11 Mar 2007 01:27:50 GMT, m II wrote: David wrote: Why not just take the battery out of the 2nd one and put it in parallel with the battery in the first one? It would be more efficient. It would be, but there's a catch. When the time comes to recharge the now much bigger battery, the original charging circuit probably couldn't handle the extra current. The greater the plate area, the more it starts looking like a short circuit as far as the circuitry goes. Most things being now built are made down to a cost instead of up to a quality standard. mike I've done this succesfully. I'm guessing the current is clamped, but the Triplett kept 3 big-ass batteries charged in a microwave shack. You obviously have better taste in the UPS systems available. I tried a large 12V sealed lead acid battery once and the charge circuit DID melt down. I was heartbroken. My visions of a two day standby time were crushed. The small Tripp Lite I have now is acting up. The relay used to transfer standby power over doesn't work anymore. In all fairness it is an older 450 VA model, so I should really look around for a new one. I should also do a complete back up...today...right...today.. mike |
UPS in series?
Buy a new battery back up device.Tripp Lite,APC,or whichever brand name
you prefer.When the batteries (I think my APC Model 1000 has two batteries) in my batttery back up get too worn out,I will go to a local computer store and buy a new one with new fresh batteries in it.I won't mess around.By the way,I get snail mail APC pamplets in my snail mail box,whenever APC company sends them out.I guess a www.devilfinder.com for,APC News Letters might turn something up. cuhulin |
UPS in series?
On Mar 10, 6:41 am, "download.com" wrote:
"Brenda Ann" wrote in message ... "Ron Hardin" wrote in message ... Has anybody tried getting longer run times from UPS's by plugging one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) -- You're not going to extend your runtime near as much as you might think. If you had an UPS with a clean enough pseudo-sine waveform to even get the next one in line to power up stably (and you have to get into some very very good ones to do that, they basically have to be generator rated), then you have to deal with the issue of the other UPS'es in the chain not being 100% efficient, so you lose a lot of what you would have gotten from that first unit in the line. This of course follows up the chain. Just buy a bigger UPS!!! I use to sell them Burr- Hide quoted text - - Show quoted text - Yes most likely the next-size-up UPS will cost less than the two smaller ones and be the more Reliable and Co$t Effective $olution to the Quest for Longer-UPS-Run-Time. the bigger one is the better one : when the alternative is two of lessor potential and twice the possibility of failure ~ RHF |
UPS in series?
RHF wrote:
Yes most likely the next-size-up UPS will cost less than the two smaller ones and be the more Reliable and Co$t Effective $olution to the Quest for Longer-UPS-Run-Time. the bigger one is the better one : when the alternative is two of lessor potential and twice the possibility of failure ~ RHF Is there a UPS that explicitly uses external (auto or marine) batteries? -- Ron Hardin On the internet, nobody knows you're a jerk. |
What's On Your Power Grid : UPS ? -or- Alternative Power Supply ?
On Mar 10, 3:14 am, Ron Hardin wrote:
Has anybody tried getting longer run times from UPS's by plugging one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) -- Ron Hardin On the internet, nobody knows you're a jerk. What's On Your Power Grid : UPS ? -or- Alternative Power Supply ? Maybe the Philosophical Question should be . . . WHY USE AN "UPS" ? * Do You Use and UPS ? * Why Do You Use an UPS ? From 'my prespective' living at the End-of-a-Country-Road. I use an UPS to Safely Power Down the Computer and wait, Wait. and WAIT ! until Full Electrical Power is Restored. When the Lights Go Out and the UPS Beeps and Lights-Up that It Is "ON" {Working}. My actions are simple : 1 - Close Down the Compluter Applications 2 - Power Down the Computer 3 - Turn Off the UPS 4 - Check the Emergency Lights 5 - Start a Fire in the Wood Stove 6 - Turn on the Radio and Listen to What's Out There ! ! ! - - - When the Local Background Noise is Ever-Oh-So-Low. BUT =IF= What You Want Is an Alternative Power Supply that will Run your Computers for Many Hours and up to a Day. Consider some Deep Cycle Storage Batteries and a very good Solid State Inverter. Deep Cycle Storage Batteries http://www.absak.com/alternative-ene...batteries.html http://www.windsun.com/Batteries/Battery_FAQ.htm http://store.solar-electric.com/batt...FSUeGAoddSkxqA Electrical Power Inverters DC-to-AC http://www.absak.com/alternative-ene...inverters.html http://www.tripplite.com/products/inverters/index.cfm http://www.voltage-converter-transfo...inverters.html Water Turbine Generators = Micro-Hydro-Power http://www.absak.com/alternative-ene...dro-power.html http://www.firemountainsolar.com/microhydro.html http://www.alternative-energy-news.i...pros-and-cons/ http://www.elements.nb.ca/theme/energy/micro/micro.htm http://www.mobilehomestead.com/alt/hydro1.htm Photovoltaic Solar Panels http://www.absak.com/alternative-ene...lar-power.html http://www.oksolar.com/panels/ http://www.solarpanelinfo.com/ From Solar Cell - To Solar Panel http://en.wikipedia.org/wiki/Solar_cell http://en.wikipedia.org/wiki/Solar_panel ups, Ups. UPS ! - Then There Are Altenatives ~ RHF |
What's On Your Power Grid : UPS ? -or- Alternative Power Supply ?
"RHF" wrote in message oups.com... On Mar 10, 3:14 am, Ron Hardin wrote: Has anybody tried getting longer run times from UPS's by plugging one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) -- Ron Hardin On the internet, nobody knows you're a jerk. What's On Your Power Grid : UPS ? -or- Alternative Power Supply ? Maybe the Philosophical Question should be . . . WHY USE AN "UPS" ? * Do You Use and UPS ? * Why Do You Use an UPS ? From 'my prespective' living at the End-of-a-Country-Road. I use an UPS to Safely Power Down the Computer and wait, Wait. and WAIT ! until Full Electrical Power is Restored. When the Lights Go Out and the UPS Beeps and Lights-Up that It Is "ON" {Working}. My actions are simple : 1 - Close Down the Compluter Applications 2 - Power Down the Computer 3 - Turn Off the UPS 4 - Check the Emergency Lights 5 - Start a Fire in the Wood Stove 6 - Turn on the Radio and Listen to What's Out There ! ! ! - - - When the Local Background Noise is Ever-Oh-So-Low. BUT =IF= What You Want Is an Alternative Power Supply that will Run your Computers for Many Hours and up to a Day. Consider some Deep Cycle Storage Batteries and a very good Solid State Inverter. Deep Cycle Storage Batteries http://www.absak.com/alternative-ene...batteries.html http://www.windsun.com/Batteries/Battery_FAQ.htm http://store.solar-electric.com/batt...FSUeGAoddSkxqA Electrical Power Inverters DC-to-AC http://www.absak.com/alternative-ene...inverters.html http://www.tripplite.com/products/inverters/index.cfm http://www.voltage-converter-transfo...inverters.html Water Turbine Generators = Micro-Hydro-Power http://www.absak.com/alternative-ene...dro-power.html http://www.firemountainsolar.com/microhydro.html http://www.alternative-energy-news.i...pros-and-cons/ http://www.elements.nb.ca/theme/energy/micro/micro.htm http://www.mobilehomestead.com/alt/hydro1.htm Photovoltaic Solar Panels http://www.absak.com/alternative-ene...lar-power.html http://www.oksolar.com/panels/ http://www.solarpanelinfo.com/ From Solar Cell - To Solar Panel http://en.wikipedia.org/wiki/Solar_cell http://en.wikipedia.org/wiki/Solar_panel ups, Ups. UPS ! - Then There Are Altenatives ~ RHF . . . . Just go get an AC power unit and a gas can. Burr |
What's On Your Power Grid : UPS ? -or- Alternative Power Supply ?
On Mar 12, 2:25 am, "download.com" wrote:
"RHF" wrote in message oups.com... On Mar 10, 3:14 am, Ron Hardin wrote: Has anybody tried getting longer run times from UPS's by plugging one UPS into another? Power goess off, the first UPS goes on batteries, and runs everything. When it quits, the second UPS senses it and goes on batteries, and runs the computer. And so indefinitely if you add more UPSs to get more runtime. It seems it me it would work except possibly : (1)The UPSs might not like the non-sinewave output of the first UPS, and (2)I don't know what kind of current they draw if they decide to recharge their batteries from an outer UPS. (This would suggest it's wise to unplug the outer UPS when the power goes off so nobody tries to recharge.) -- Ron Hardin On the internet, nobody knows you're a jerk. What's On Your Power Grid : UPS ? -or- Alternative Power Supply ? Maybe the Philosophical Question should be . . . WHY USE AN "UPS" ? * Do You Use and UPS ? * Why Do You Use an UPS ? From 'my prespective' living at the End-of-a-Country-Road. I use an UPS to Safely Power Down the Computer and wait, Wait. and WAIT ! until Full Electrical Power is Restored. When the Lights Go Out and the UPS Beeps and Lights-Up that It Is "ON" {Working}. My actions are simple : 1 - Close Down the Compluter Applications 2 - Power Down the Computer 3 - Turn Off the UPS 4 - Check the Emergency Lights 5 - Start a Fire in the Wood Stove 6 - Turn on the Radio and Listen to What's Out There ! ! ! - - - When the Local Background Noise is Ever-Oh-So-Low. BUT =IF= What You Want Is an Alternative Power Supply that will Run your Computers for Many Hours and up to a Day. Consider some Deep Cycle Storage Batteries and a very good Solid State Inverter. Deep Cycle Storage Batteries http://www.absak.com/alternative-ene...batteries.html http://www.windsun.com/Batteries/Battery_FAQ.htm http://store.solar-electric.com/batt...3_46fv7ooCFSUe... Electrical Power Inverters DC-to-AC http://www.absak.com/alternative-ene...inverters.html http://www.tripplite.com/products/inverters/index.cfm http://www.voltage-converter-transfo...inverters.html Water Turbine Generators = Micro-Hydro-Power http://www.absak.com/alternative-ene...dro-power.html http://www.firemountainsolar.com/microhydro.html http://www.alternative-energy-news.i...pros-and-cons/ http://www.elements.nb.ca/theme/energy/micro/micro.htm http://www.mobilehomestead.com/alt/hydro1.htm Photovoltaic Solar Panels http://www.absak.com/alternative-ene...lar-power.html http://www.oksolar.com/panels/ http://www.solarpanelinfo.com/ From Solar Cell - To Solar Panel http://en.wikipedia.org/wiki/Solar_cell http://en.wikipedia.org/wiki/Solar_panel ups, Ups. UPS ! - Then There Are Altenatives ~ RHF . . . . Just go get an AC power unit and a gas can. Burr- Hide quoted text - - Show quoted text - Burr - Hey That Works Too ! ~ RHF Some how the name "Honda" comes to mind . . . http://www.electricpowergenerator.co...ticbackup.html http://www.electricgeneratorsdirect.com/ http://www.hondapowerequipment.com/g...le_genera tor But for those who want to go BIG ! CATS the name -as in- Caterpillar. http://sim1.net/opt/sweeps.asp?s=RM6Y99ZA&SRC=pc279163 http://www.a-chainsaw.com/swt/generators-c-7.html Although up here In-dem-dar-Hills a Propane Fueled Generator set in a Hush-House would be the better match. http://www.duropower.com/index.asp?F...ByYAo dZQYcnA http://www.propanecouncil.org/rd/generator.html i may be full of gas . . . butt i am powerless to do anything about it ~ RHF |
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