Interested to Buy Any Domain ? << Click Here >> for more details...
How to calculate the ups battery back up? give the formula.
- 15 Answers
- 110549 Views
- Cushman Wakefield, Ethio Telecom, Exide, MacLellan, Morgan Stanley, TATA, I also Faced
- E-Mail Answers
Answer Posted / mehboob
( Battery Voltage * AH Rating * Efficiency) / VA Rating = X
X * 60 = Estimated Run Time in Minutes
So let’s pretend we’re looking at a theoretical UPS unit that has the following specs:
VA Rating: 700
Battery Voltage: 12
AH: 9
Efficiency: 0.9 (90%)
When we plug those numbers into the equation we get the following:
( 12 * 9 * 0.9 ) / 700 = 0.139
0.139 * 60 = 8.3 minutes
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
Whether power factor should be high or low? Why?
Differnce between negative Pahse SequenceFunction and unbalance Function?
how we can decide that what value of ht line will come to any commercial building? (ans except According to the building load)
With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.
What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
after how many spot we must chang secondry cable in portable spot welding gun?
if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
what is the best transformer oil breakdown voltage?
delta motor winding resistance I take normally single winding is 2.5, which value is came delta connection ie RY ?
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
How does PLC work for sychronising of Two or more DG sets?
what a function diesel generetaor turbo charger & turbo charger is more heated explain reason ?
The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?
