how the calculation is done if the DG set require for the --
-48 to -51v 4000 ah battery set .

Answer Posted / k.prakashchandra

Generally ,the charging rate should be at least 10 % of AH
of the battery set numerically,so that full charging time
will not exceed 10 hours.

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.

896


All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?

1204


I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1468


i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

1411


what is transformor oil gread

1965






we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1486


What is the lower limit of break-down voltage of converter transformer.

1452


how does ELR works? explain

2148


what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking

1442


Write down the name of 2 lady Bir Pratin of Bangladesh

1465


please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com

1635


what is mean by dry frequency

1939


What does Bode plot tell you?

805


what type of questions are asked and howmwny questions belong this catagory?

1708


what is the meaning of osr in transformer.

1541