Interested to Buy Any Domain ? << Click Here >> for more details...
How to calculate the ups battery back up? give the formula.
- 15 Answers
- 110698 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
My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?
Define norton equivalent circuit?
why cable i burning without tripping. how can protect led street lights
Sate maximum power transfer theorem?
What is an automatic controller?
why the check zone and main zone are used for Busbar Protn. scheem?
Why are cables rated for 40 KA for 0.25 Sec fault current rating?
how generator avr give to the input?
Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.
Why Ac Systems Are Preferred Over Dc Systems?
What is the difference between a verilog task and a verilog function?
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.
what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?
hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?
What is the use of Surge Capacitor in LAVT?
