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It will depend on input & output voltage, if voltage is same current will remain same
Yes, that's the whole point of a UPS. It provides power continuously from batteries even when the power goes out.
In an uninterrupted power supply there has to be a source of power when the electrical utility is not there. The only supply that is available is a battery that is in or connected to the UPS.
the full load efficiency is more than 91%. it switches to green mode when it does a 97 % I have no idea what the answer above means. If you are talking about a 120 Volt system it would be 41.67 Amps. How long the UPS can deliver the current with no supply voltage would also be a question and should be part of the rating of the UPS in Ampere hours or Milliampere hours.
The limit does not depend on the actual number of PC's that can be connected to a UPS. The limit is based on the total power consumption required by the PCs and the power supply rating of the UPS device. You can add the power consumption of all the PCs based on the number of watts (or amps) listed on a label on the back or side of each PC and compare it to the maximum load specified for the UPS unit.
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with the batteries
One can buy UPS batteries from his/her nearest computer retails. They provide good qualities of UPS batteries on a fair price. You can also refer to the official website of ApexBatteries and BatterySpec.
That would depend heavily on whether you're talking about wristwatch 'button' batteries, automotive storage batteries, or telephone central office UPS batteries.
16mm2
Thousands of types of several chemical make-ups from many manufacturers.
No way to give you a simple answer- will depend on the storage capacity of the batteries, and the efficency of the inverter in the UPS unit, and the efficency of the AC unit. That is a 24,000 BTU air conditioner, with a large current draw- typically 3200-3500 watts. It will also depend on how LONG you will want to run the AC system on battery- it is not for an indefinite time.
Only the active EMGs require batteries. EMG also manufactures passive pick-ups which do not require batteries.
Well unless you mistyped something 500kva is 500,000 watts. That would be 41,666 12 volt batteries!
Batteries. You need them to generate the power.
- For a single phase supply @ 220 voltscurrent drawn by 5kva UPS = 22.7 amperes (at full load.)
50 kva ups battery back up