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How to calculate battery backup time with 80% load with 10 kva ups

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Depends on battery load in kve. It had better be less than 10 KVA or you won't be backing it up , only extending the time untilthe battery is discharged. But to really answer the question with atime as you request you need to specify the battery capacity on kvahours.

Posted on Apr 18, 2017


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?many battries are using in galaxy 3000 g3k

If the Galaxy 3000 is a 10 or 15 KVA UPS, you need 20 batteries of the 12v 20ah if the UPS has standard backup time.
If it is a 20 or 30 KVA, probably it needs 24 batteries.
Talking about the 20 or 30 KVA UPS, if the battery is 34ah, it uses 24 batteries; in any other case it uses 20 batteries.

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100 kva ups how mutch time back up

Depends on load. If 100% load probably only 15 minutes.

Apr 24, 2014 | APC Computers & Internet

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I have a 10 kVA Rite Deltec system and i want to power it by way of solar power can this work

Hi, interesting question....
If you have access to a large enough solar system, then as long as there is sufficient power from the inverter, it will work as the UPS will consider it is being powered by a mains source.

The amount of power you will need from the SS will directly depend on how much load you have on your UPS.
Remember that you will need enough power from the SS to drive the
1) UPS electronics
2) UPS battery charger
3) Load items

Hope this helps,thanks for using FixYa

Vote for this if you like it.

Mar 06, 2014 | Computers & Internet

1 Answer

MGE S3000 overload and continous beep

Remove some load from the UPS output.
Need more info. How long have you ran it with the load prior to the overload. In other words, what is the total kVA now and what is the kVA when it was running normal? Also what time is this overload happing? Need to get the code and look for the sticker on the inside of you UPS to identify the alarm. Past experience I came across were people (Cleaners or the employees) will connect heaters, vacuums to the outlets and this will cause the overload.

Jan 07, 2014 | Computers & Internet

1 Answer

How many systems can connect to 5 kva ups

to calculate KVA you multiply Volts x Amps so you need to calculate current used by each system. depending on where in the world you are and what voltage is used and the specs of the systems will decide how many you can run. so if you are 110V and each computer with monitor is 400w you are using 3.63A per machine. Your UPS can supply upto 4000W so in theory 10 machines but this would be absolute maximum.

Here is a link to a website with some useful conversion script


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How many systems support for 1 KV UPS

1 KVA UPS will provide you good back up with 2 pcs simultaneously without any power fluctuations.

May 24, 2010 | Liebert 1 KVA UPS MODEL RT1000-60...

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What are the thing we need to understand before

i_mafaz, You need to know what you want the UPS to do for you and for how long you will require it to supply power to all your equiptment. If you can surf over to they have all the info you need to calculate the size (kva) your UPS will need to be to allow you time to shutdown your system when a power failure occurs. 12fixlouie

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My ups is switching off itself immediately the mains goes off.the battery is okay with 13v.

Batteries in the UPS typically last 3 to 5 years and it depends upon several factors. including the number of times the unit must go on battery power and enviromental conditions. There are usually several batteries in the UPS and while the battery voltage may show 13 volts, this may only a float voltage and a true indication of the battery voltage needs the batteries to be tested under a load. there maybe one battery that is faulty and causing the whole battery system to fail.
These lower powered and cheaper KVA type UPS are switch over types (when the mains fail, the UPS switches over to the inverter in milli-seconds to supply mains power). It is a possibility the inverter circuit is faulty and when the mains power fails the inverter does not switch over.

The true UPS type are usually the higher KVA units (over 1500 KVA units) that converts mains power continuously via the inverter circuit. The mains power charges the batteries and the inverter drawing power from continuously from the batteries (therefore there is no switch over time lag from the mains to the battery.

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