There is 15 KVA UPS using for single phase load.And 30
batteries of 12 V, 100 Ah are connected in series. Load is
taking 15 A current.What will be the back up power for this
UPS on same load?



There is 15 KVA UPS using for single phase load.And 30 batteries of 12 V, 100 Ah are connected in s..

Answer / k.prakashchandra

Is it correct that batteries are connected in series ? The stored energy in each battery is 12 x 100 = 1200 Wh. Total = 36000Wh . The load in watts = 230 x 15 = 3500W ( app ) . Back up = 36000/ 3500 = 10 hr(app)

Is This Answer Correct ?    2 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

In Plug used in house,Why Earth of the plug more thicker & deeper?

8 Answers   L&T,


How many types of circuit loads are there in a common electrical circuit?

0 Answers  


please send me RRB electrical engineer previous year questions for Sr. Section Engineer

0 Answers  


Waht are the protection should be use in HT/ LT side of the same Xformer?

1 Answers  


hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

0 Answers  






why elcb used in circuit

4 Answers   ABB,


Explain dc generator with its types?

0 Answers  


What is the important precuations need tocarried out while working with Electrolite in Battery PM?

0 Answers  


What is the rating of HT SUBSTATION and LT SUBSTATION?

11 Answers   NTPC, Sail,


Which type of transformer used in lighting load?

2 Answers   IMFA,


sir, iam ramya.... from the discipline of E.E.E appearing for jindal exam .sir, could you please send me the modal papers of recent jindal steel exam.

1 Answers  


The simple way of finding the leakage quantity and % in compressed air distribution system

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)