Discuss Any Recomendations for a UPS Power Supply? in the UK Electrical Forum area at ElectriciansForums.net
If you are looking for a clean supply rather than a back up supply, why not go for a Motor/Alternator set up or a Voltage StabiliserHi,
Can anyone recommend a low cost UPS to clean up a power supply?
Also, I was wondering if a UPS would synchronise the output sine wave phase to the input phase?
Fitting a UPS feels to me like the wrong fix.
I'd check R1, R2 and Rn for the circuit and measure Zs and the supply impedance (like Zs, but L to N). Also check whether there's some other noisy load on the circuit which might affect the computers. After that I'd get a like for like replacement for the PSUs in case there's a faulty batch. If the PSUs and computers can't work with a normal UK supply, there's something wrong with them.
What's the earthing arrangement on the circuit? Is it a high integrity circuit?
Switched mode power supplies and the like require a good earth as the rectifier capacitors like to dump to earth. A poor earth and the PSU won't run properly.The building is TNC-S and yesterday I converted one ring to a high integrity earth setup including splitting the earth at the distribution board with no improvement.
I do struggle to understand how the earthing system could affect unearthed equipment?
There are three separate rings in three offices all next to each other. The earth is 1.5mm.Switched mode power supplies and the like require a good earth as the rectifier capacitors like to dump to earth. A poor earth and the PSU won't run properly.
Just out of curiosity is the CPC the same CSA as the conductors?
Have you tried just running one PSU on the circuit? Is there anything else connected such as printer, photocopier etc?
Very strange, I'm a bit stumped at the minute.
This is what I have suggested. A “Continuous” UPS for less than £200.Wouldn't cost much to get a small UPS to try with one of the computers - would give you more to go on then.
The computer company would blame the supply. What make of PSU are they?
Judging from your responses, you haven't even entertained my suggestions, just plumped for the UPs syndrome, which isn't going to provide you with what you want
My suggestion would be rather than hoping to find the answer to your problem, from well meaning and informed replies, you may do better by laying out the exact problem and what you have/are doing about it and go to a reputable power supply company, explaining your concerns, asking for a site visit, so they can see first hand the environment and working conditions, you may be pleasantly surprised by the responses.
Dduring my time as Head of of the electrical section where I worked I found most firms would visit FOC to offer their equipment as a remedy for your problems, could save you or your company a lot of unnecessary time and money.
Sorry Pete, I had intended to answer but got distracted.
Yes, a clean supply would be ideal. I have no experience of the Motor/Alternator set up or voltage stabiliser. Is there somewhere I can read up on them?
With this post, I agree entirely about getting the experts in, however, I suggested to the bosses that to confirm a problem with dirty power supply in the building they needed to approach a specialist or advice and diagnosis, even giving them a linl to a company that I had found that do specialise in this sort of thing, and I think they expect this to be expensive so have not even explored it but are still wanting a reliable solution to their problem.
When you say “go to a reputable power company” do you mean the supply company, or is there someone you would suggest they approach?
Personally I am not convinced there is a real problem in the building (block of flats with 9 floors and offices on the ground floor, and the offices are where the problem is occurring). There has not been an issue with any IT equipment before these new computers (IGel Computers) arrived, and the problem was then instantaneous and consistant.
Try this lot they may be able to help, it's been a while since I used anyone,Voltage Stabilizers - Single and Three Phase Stabilizer Solutions - https://www.ashleyedison.com/voltage-stabilisers-660/?gclid=EAIaIQobChMIrf3y6Kbh1QIVVMYbCh3kewOMEAAYASAAEgLpZ_D_BwESorry Pete, I had intended to answer but got distracted.
Yes, a clean supply would be ideal. I have no experience of the Motor/Alternator set up or voltage stabiliser. Is there somewhere I can read up on them?
With this post, I agree entirely about getting the experts in, however, I suggested to the bosses that to confirm a problem with dirty power supply in the building they needed to approach a specialist or advice and diagnosis, even giving them a linl to a company that I had found that do specialise in this sort of thing, and I think they expect this to be expensive so have not even explored it but are still wanting a reliable solution to their problem.
When you say “go to a reputable power company” do you mean the supply company, or is there someone you would suggest they approach?
Personally I am not convinced there is a real problem in the building (block of flats with 9 floors and offices on the ground floor, and the offices are where the problem is occurring). There has not been an issue with any IT equipment before these new computers (IGel Computers) arrived, and the problem was then instantaneous and consistant.
Reply to Any Recomendations for a UPS Power Supply? in the UK Electrical Forum area at ElectriciansForums.net
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