Question

UPS

Asked by: Visual3DMaya

Is it ok for a (good) UPS to warm up and how much?
Let's take the case when it does not supply.

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Asked On
2006-09-22 at 15:35:45ID21999875
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Miscellaneous Hardware

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Hardware Components

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Answers

 

by: PCBONEZPosted on 2006-09-22 at 15:46:50ID: 17581358

If has been shut-off then the battery is probably dead and needs to charge up some before it will work properly.

 

by: Visual3DMayaPosted on 2006-09-22 at 16:07:44ID: 17581440

The UPS is new and it warm up without explicable reason. Is it normal?

 

by: Visual3DMayaPosted on 2006-09-22 at 16:13:01ID: 17581461

when it is in stand by. Is it normal?

 

by: pgm554Posted on 2006-09-22 at 16:28:45ID: 17581492

Yes ,they do get warm(depending on the model,some of them have fans).
Also APC UPS's have software that monitors how hot a UPS gets and alerts you if it is out of spec.

 

by: pgm554Posted on 2006-09-22 at 16:30:53ID: 17581503

Depending upon model numbers,some actually tell how much clearence is required for proper ventilation.

 

by: DataVaultPosted on 2006-09-22 at 16:33:28ID: 17581509

Yes that is normal for a UPS to warm up like that, did you let it charge completely before using it ? or did you just plug and play (so to speak).you should have let it get a full charge before using it but it should be fine, its making up for charging time while the computer isnt in use, but if it continues let's say a a couple weeks from now i would question it functionality.
I always give me New UPS's a good charge and then i unplug them and drain the battery completed, and for the most part i get great battery life on all my UPS's.


Mac

 

by: enfzPosted on 2006-09-22 at 19:38:56ID: 17581981

My UPS warms up when it is being charged as well as when the power cuts off and it supplies the power to the peripherals. Though it is usually slightly warmer when being charged. Having said that, it shouldn't be too hot to touch, as it should be just warm that is quite comfortable for you to leave you hands there.

 

by: PCBONEZPosted on 2006-09-22 at 23:59:34ID: 17582550

Any time the battery is charging it will be 'extra' warm.

Also UPS units have large enough transformers and capacitors to put out a fair amount of heat even when not charging.
It's part of the power 'conditioning' process.

 

by: Visual3DMayaPosted on 2006-09-23 at 01:16:30ID: 17582728

Yes that is normal for a UPS to warm up like that, did you let it charge completely before using it ?
>>>i don't know, it's about a neighbour's UPS that always i find it warm, although it is in standby. It is on from many months ago and not linked to any PC port. I think you say about formatting the accus.

Is not there Li-Polimer UPS so have no care about it?

I conclude that warming is function the power of the inverter from the UPS, so a powerful UPS would warm more.
Yours is it a low power UPS enfz?

 

by: enfzPosted on 2006-09-23 at 03:42:04ID: 17583281

This is my UPS here -> http://www.thortechnologies.com.au/720vaproducts.htm
As far as I know, it is fully charged when it was disconnected off the mains and then the UPS kicks in (mine is the 'offline' ver), as opposed to the 'online' version which powers the devices from the battery constantly (regardless whether the mains is on or off). The online version possibly will run hotter, due to the constant charging/discharging and conversion of ac/dc.

 

by: enfzPosted on 2006-09-23 at 03:46:46ID: 17583286

Here is a link to a UPS Buying Guide which also has a list of types of UPS.
Good for some bedtime reading ;)
http://www.pcworld.idg.com.au/index.php/id;815595312;pp;1#thebigrisk

 

by: Visual3DMayaPosted on 2006-09-23 at 11:36:17ID: 17584312

Cool site, i have to read now.
Cool UPS, looks so small, i want it too.
The online UPS works like the mobil phone battery. How can i avoid such UPS?
How can i realise the UPS i'm talking about is that kind?

What do you say, worth it be connected to the PC port and be managed or better let the UPS alone?

 

by: Winvintang8Posted on 2006-09-23 at 15:47:57ID: 17584829

When a UPS charges its Lead Acid Battery pack it should get a little warm. Just make sure it does not go over 200 degrees.

 

by: pgm554Posted on 2006-09-23 at 16:03:03ID: 17584865

Even cheap ups's have usb or serial connection software for under a $100 bucks US.

So managed is the best.

 

by: zerathosthegreatPosted on 2006-09-24 at 10:45:23ID: 17587679

With electricity flowing and the batteries charging it should get warm.

Thats it right there, it should get *WARM*, it you can touch it and burn or almost burn yourself then there is a problem. But if its warm (Under 100F or so) then it should be fine.


But The second you can touch it and burn yourself, make sure you get it checked or replaced by a pro.

 

by: Visual3DMayaPosted on 2006-09-24 at 13:35:23ID: 17588232

With electricity flowing and the batteries charging it should get warm.
>>>Without electricity flowing and without the batteries charging, when it is in standby.

 

by: zerathosthegreatPosted on 2006-09-24 at 14:08:22ID: 17588436

It will still be warm, even in standby, as long as its not hot (like burn hot) its fine.

If you smell any melting plastic though, shut down, unplug take it to get it checked.

Like I said, it should be fine as long as its not smoking, melting, or too hot to put your hand on.

 

by: Visual3DMayaPosted on 2006-09-24 at 14:25:13ID: 17588513

It will still be warm, even in standby, as long as its not hot (like burn hot) its fine.
>>>i know that it is fine but not for me. I don't like electric things that do get warm, mainly when theoretical it does nothing but waiting and be ready to switch, I know it is not so simply but i think it could stay cold enough so it would not increase my PC consumption.

 

by: enfzPosted on 2006-09-24 at 16:39:36ID: 17588891

The online UPS works like the mobil phone battery. How can i avoid such UPS?
>> The online variant is usually for those more critical environment that can't afford any downtime, with the offline, it does take a slight time to switch over..which *may* disrupt critical system activities as well as there may be power spikes when switching over/or during use.

How can i realise the UPS i'm talking about is that kind?
>> Most of the lower end ones are the offline variant, though best is to get the brand/model and google up the exact specs to be 100% sure.

What do you say, worth it be connected to the PC port and be managed or better let the UPS alone?
>> It depends on your computer use, if you connect it up to the PC and install the software, it can perform tasks such as shutting the PC down when the UPS battery runs low.

 

by: Visual3DMayaPosted on 2006-09-30 at 15:23:24ID: 17636249

How can i realise an UPS is online or offline type, what should be written in the specs?

 

by: enfzPosted on 2006-09-30 at 22:15:57ID: 17636926

One way I test is to turn off the switch at the wall point, if he clicks/switches over..you can hear it do so. That is the offline version. The online version, turning off the switch at the wall doesn't click as it is running from the battery/inverter initially anyhow.

 

by: Visual3DMayaPosted on 2006-10-01 at 04:53:25ID: 17637396

So it's not about electronic switching? as:
720va - UPS: Reaction Time for Transient Spikes      Less than 1 Nano Sec
May be something else that clicks inside, maybe both online and offline does click, are you sure online does not?

 

by: PCBONEZPosted on 2006-10-01 at 14:17:53ID: 17639548

There are any number of things that can click inside and it doesn't indicate which type of UPS you have.
A click is usually a relay and the control to activate the relay may be electronic or not.
Relays are used because they are less expensive than using purely electronic switching to switch the same amount of power.
Electronic components to directly switch 120v or 220v power with any significant current capacity are quite expensive relative to a electro-mechanical relay that will do the same thing.
.

20120131-EE-VQP-002

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