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3 fase 3 kva online ups invertor price & capacity load

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Hello Santosh,

A 3 Phase 3KVA backup solution is outside the realm of an off th shelf solution. It would be best if you were to contact a manufacturer directly, as configuration and price depend heavily on your loads (continuous and instantaneous), battery capacity (usable time while AC is offline), mounting space available, rack configuration, just to name a few.

American Power Conversion (APC) is able to provide a solution that you require. You can contact them at 877-272-2722 in the USA, otherwise, consult apc.com and check the contact us link at the bottom of the page for alternative numbers.

Posted on Aug 27, 2010

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


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.

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Can voltage on Powermate be adjusted?


yes
the adjustment is by the rpm setting on the governor spring
thee is a nut that you adjust the spring tension with and lower the rpms and watch the voltage gauge until you get the desired voltage
if the load is going to be constant but is well within the rated capacity( example 2kva of a 6.5 kva set) of the gen set then the variation when the load comes on will be less than 5 volts
however if the power required is close to the max capacity of the gen set ( example 4.5kva of a rated 5 kva set) , then turn the unit on and adjust the rpms up to the required voltage required
remember that an advertised kva is not the rated kva
rated kva is what the gen set will produce all day and is normally around 1kva less than advertised kva
so if you have a 6.5 kva gen set ,it will handle current peaks to 6.5 kva but will burn out if required to run long time at that load
if the gen set is 1000 watts then rated watts will be less ( 750-800) for long time use

Oct 22, 2015 | Electrical Supplies

1 Answer

Hi. I have a generator. Kholer. Once i load the voltage. Its shuting downg the it showing over voltage.


what you haven't mentioned is the capacity of the genset
( 500 kva , 1000 kva etc ) and the loads that you are applying ( fridge , tools lights stoves , etc) comment on this for a better answer

Oct 19, 2015 | Electrical Supplies

2 Answers

Can a 220volt floor sander be run off a generator


Hi Glen,

Welcome to fixya!

You would have to check the capacity of your generator. If it can handle 220 volts and the amp rating of the floor sander does not exceed the amp rating of the generator, you should be good to go.

Good luck.

When you accept this solution, please place a vote for me.

Thanks,
Handie Andie

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1 Answer

Have (2) 7 kVA's & (1) 18 kVA Best. Need fans for all 3. What is the P/N and the cost?


Please Call me at Gruber Power Services tech support. It's free tech support. Ask for Eric

Aug 08, 2011 | Powerware FerrUPS 5.3KVA (fj340aa0a0a0a0a)...

1 Answer

It only gives 15 Volts but no amperage rating?.our genset capacity is 450KVA


KVA is voltage multiplied by current. So if your genset can supply 450KVA at 15 Volts, by dividing 450 by 15 we get the maximum current available to be 30 amps. However you should never draw the maximum current as it would put a strain on the supply. It would be safe to draw up to 25 amps at 15volts

Sep 07, 2010 | Computers & Internet

1 Answer

When is the formule for transformer 1.5 kva to amperes


To convert KVA to AMPS:
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May 18, 2010 | Electrical Supplies

3 Answers

How many watts would you get from a generator rated at 11hp and 5.8 kva. thanks


kva = kilo-volt-amps

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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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