i want to know how to calculate the battery capacity based
on the UPS . ex i want to run have one kva UPS Which should
run 10 hours ? in that case how many batteries to be
installed and what will be the AH Value .
Answers were Sorted based on User's Feedback
Answer / markandeya
total number batteries=votage required/votage of indivedual
cell
Ah value of indivedual battery=1.5*current*time(hours)
for an example:
votage required is 240
cell voltage is 12
then we require 20 cells.
if load is 1 kVa time is 10 hrs
we need 60 ah is required
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / jagdish raval
UPS KVA= 1. Then KVA= VA/1000. So I=KVA*100/V. If the V=48,
Then I=21. The load of UPS is 21Amp and it have run for 10
Hours, So Battery Capacity should 210Ah.
| Is This Answer Correct ? | 1 Yes | 0 No |
what is mean by amf
what will happen when reverse reactive power occurs in alternators?
what are types of ups?
Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.
In a simple spur gear train, gears with 24, 48, 32, 72 and 96 teeth are in sequence. The gear with 24 teeth runs at 900 rpm. The speed in rpm of gear with 72 teeth is
can anybody tell me that for p.f. Improvment we use capacitor banks but how to decide its capacitance. As we all know how to calculate kvar but what abt capacitance value
How you give clearance to a spare feeder.
one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..
what is the difference between static and dynamic induced emf?
14 Answers College School Exams Tests, MRF, Suraj Constructions,
how to calculate knee point voltage of current transformer?
21 Answers Bhel, Bhilai, Jackson,
Is Indian railway uses 25000v ac or dc?
How much current can 11KV line carry? What are the formulae used to calculate current across both side of transformer? Moreover I need to know can I connect 33KV line with transformer of 1600KVA? Details are: V=415, Pf= .9
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)