Follow Our FB Page << CircleMedia.in >> for Daily Laughter. We Post Funny, Viral, Comedy Videos, Memes, Vines...

How to calculate the ups battery back up? give the formula.

Answers were Sorted based on User's Feedback

How to calculate the ups battery back up? give the formula...

T = N.V.X / VA

T= Time in Hours
N = No. of batteries
V= Voltage of Battery
X= Amp-Hour of the Battery

 Is This Answer Correct ? 156 Yes 29 No

How to calculate the ups battery back up? give the formula...

numbers of battery * ah of battery /output kva*130
34*200 /160*130
6800/20800
0.32 hours .

 Is This Answer Correct ? 93 Yes 48 No

How to calculate the ups battery back up? give the formula...

UPS / Invertor Battery Backup Time =
----------------------------------

Batt Voltage X No.of (Batteries) X Ah (Single Battery) /
Total Load (Watts) = No.Hours Backup

Example :- 12v X 20(Batteries) X 200Ah (Single Battery)
/ 6000 (Watts) = No.Hours Backup

48000 / 6000 Watts = 8 Hours Backup

 Is This Answer Correct ? 55 Yes 14 No

How to calculate the ups battery back up? give the formula...

V*AH/VA

 Is This Answer Correct ? 43 Yes 22 No

How to calculate the ups battery back up? give the formula...

To get one hour battery backup:

BATTERY AH = 1000 × VA × PF /( NO. OF BATTERY × BATTERY

 Is This Answer Correct ? 27 Yes 6 No

How to calculate the ups battery back up? give the formula...

Calculating the UPS and Battery Backup Time
Before calculating the Battery Backup, let us know a few
factors that vary battery backup.
For and UPS with 875Va we can us a maximum load of 640
watts 677Va we can us a maximum load of 540 watts
The main thing we should understand is that whatever may be
the UPS wattage the battery backup will not vary.
The battery backup will only vary depending on the battery
To calculate UPS backup, we have a simple formula.
UPS Backup = Battery Ah * (Volts/Load) * (1/Power Factor)
Example: Let us calculate the backup for a system UPS
Load is the usage power, suppose we are running a PC then
the load is around 300 watts
Power Factor varies for device to device, the average power
factor is 1.4
Voltage is the voltage of the battery.
For a single battery the voltage is 12v.
If the batteries are connected in a series Voltage = 12 *
no. of batteries.
Battery Ah is the battery ampere used for the ups,
System UPS battery AH is 7
Then Battery Backup = 7 * (12/300) * (1/1.4)
= 7 * (0.04) * (0.7)
= 0.19 hours
= 11.4 Minutes
Note: You can use the same formula for calculating the
battery backup for home UPS or an INVERTER.

 Is This Answer Correct ? 19 Yes 12 No

How to calculate the ups battery back up? give the formula...

back up( in hours)= system dc volts x AH rating(

 Is This Answer Correct ? 11 Yes 5 No

How to calculate the ups battery back up? give the formula...

Time=ups efficiency*battery efficiency*battery low volts*battery AH/ups output(watts)

 Is This Answer Correct ? 14 Yes 12 No

How to calculate the ups battery back up? give the formula...

Battery Backup= No.of Batteries X Voltage of the batteries X Capacity of the batteries X Pf (0.8) / Load in Watts

 Is This Answer Correct ? 3 Yes 2 No

How to calculate the ups battery back up? give the formula...

backup time=(kva rating*power factor)!dc low of system

 Is This Answer Correct ? 8 Yes 8 No

More Electrical Engineering Interview Questions

What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

As all us know that the capacitor panel is connected to improve the power factor when it is PF is low. whether we can connect the capacitor panel on D.G. side(? If it is yes means why?

what is the IS foe lightning arrester?

what is meant by phase &line voltage, how its differ from each other ?

What is electrical diversity factor in electrical installations?

why batteries are rated in ampere hour

what is the working principle of electrical generator

what is the uses of C.V.T transformer in switch yard?

WHY RATING OF VCB NOT LESS THAN 630A

why we use taping of transformer on HT side?

is power factor correction related with vector group of transformer i.e:Dyn11?

What is the difference between AC Drive and VFD?

Categories
• Civil Engineering (5075)
• Mechanical Engineering (4444)
• Electrical Engineering (16604)
• Electronics Communications (3915)
• Chemical Engineering (1092)
• Aeronautical Engineering (214)
• Bio Engineering (96)
• Metallurgy (361)
• Industrial Engineering (258)
• Instrumentation (2992)
• Automobile Engineering (332)
• Mechatronics Engineering (97)
• Marine Engineering (123)
• Power Plant Engineering (170)
• Textile Engineering (575)
• Production Engineering (0)
• Satellite Systems Engineering (106)
• Engineering AllOther (1377)