Interested to Buy Any Domain ? << Click Here >> for more details...
In ups how can calculate the battery backup time
- 12 Answers
- 40670 Views
- APC, Cushman Wakefield, Gulf, Honeywell, Huawei, Microtek, NDA, SSB, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / sarath.s
Battery AH/Battery current at full load.
Ex:160/40 amp we get three hours back up
| Is This Answer Correct ? | 78 Yes | 35 No |
Answer / ishu
battery Ah*nominal dc voltage of system/load in va
| Is This Answer Correct ? | 35 Yes | 14 No |
Answer / malkhan s chauhan
Idc = Cap. of UPS*1000*PF
-------------------------
Nos. of Cells* ECV* Inverter Efficiency
| Is This Answer Correct ? | 24 Yes | 7 No |
Answer / manju
Battery capacity X No of battery X Ah X battery(0.8)/ o/p
wattage
this is will give backup time for your setup
| Is This Answer Correct ? | 26 Yes | 10 No |
Answer / bharat g surati
for back up count equation is
no of batteries X 12 volts X battery AH = totalVA
| Is This Answer Correct ? | 10 Yes | 7 No |
Answer / vinu chauhan
Battery Back Up = Idc*Hr
-------
% of battery utilization
| Is This Answer Correct ? | 7 Yes | 6 No |
Answer / v.bala
Battery current at full load / Battery Ah. This gives
approxmate backup time.
| Is This Answer Correct ? | 60 Yes | 60 No |
Answer / kumar
ups capacity = 5kva = 5000va
battery = 10 nos
battery volt = 12v
ups vdc = 10*12 = 120 vdc
ups power factor = 0.8
back-up time = 5000*0.8=4000
ups load = 4000/120
battery ah = 33.3 Ah perhour (appx value)
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / harish dhami
its all about d matter of charging and discharging.......
generally all of us r well known about how a capacitor
discharges.....what is d time constant for discharging.
knowing initial n final conditions we may calc. d backup
time with some formulas....
| Is This Answer Correct ? | 9 Yes | 14 No |
Can anyone let me know how to answer the specialization question asked in L1-B Interview. I am into testing profile. Please revert ASAP. Thanks in Advance!!
Why you who need to go to us and why us associate can not work on this
What is the purpose of your visit.
L1 B VISA ,Am Mechanical Engineer passed out of 2006 batch and have any exper of 3 years 8 months am eligible for L1 b visa and am working in the same domain last 3 years 8 months
i have been rejected for B-1 visa on 13th jan 2009 now my company wants to apply L-1 visa for me . what will be the right time to apply for it ? is there any time limit in this case?
I have done Diploma in Mechanical engineering. I am going to attend interview for L1 VISA. Earlier I had worked in 3 companies and there was a gap of 6months in between. In present company i have not shown that gap.I didnt get any certificate from one company to which I havve merged that 6 months gap. How should I proceed now? please suggest me something.
Hi, I have done my Engg in Mechanical and passed out in 2006.I have been working with a MNC and on the project for past 14 months. I am going to file my L1. I wanted to know whether i am eligible or not and if so will my engineering in mechanical engg will be a constraint in getting visa.
Hi, I got rejected 3 times for B1 2 years back. but that time i was working for small company. now i am going to appear for the L1 visa. my profile has couple of changes, one is, i am working for a bigger well known company and now i have completed MCA. earlier when i got rejected B1, i only had MBA which is not a technical degree since i am into software development. I am qualified technical architect. can any one let me know what are my chances to get through L1? it is urgent please thanks in advance
HI all i have a total work ex of 4 plus years in some of the top IT companies of india. I have a btech in information technology. I was placed from college in 2006. I did my final year in 2006 but because of ill health was unable to give one paper which i gave in session 2007-2008. Now though my degree gives yr of passing as 2008 my total IT experience is 4 plus years. I need to go to US for project related work and my company is getting my L1 blanket visa stamped. Can i get a visa on the above criteria. Please let me know asap. any help would be appreciated
L1B individual Petition got Denied (not visa)due to lack of specialize knowledge, can i apply for H1B? Will it have any impact on my H1B application? Will it have any impact in my future application of Visa? Please help me
i am a diploma mechanical engineer having 2yrs of experience , i want to know am i elligible for l1b visa.
Hi fiends. My company offered me L1 Blanket visa, I have studied SSC+ITI+Graduation in computers (open university). It will give any problem to me. plz give me suggestions.
H1B Visa 
