We have ONLINE UPS 15KvA (3PHASE 440V I/P,3PHASE O/P,440V)
I want to step down from 440 to 220 V What to do. Pl.
suggest with specification.
Answer / arvind limited
UPS 15 KVA 3 PHASE 440V AC- battary capacity: 12vx25ah-30nos
| Is This Answer Correct ? | 1 Yes | 0 No |
What is Traction? 1KVA Alternator, How much urrent taken?
If we say that an cable of size 3.5X 50 mm sq. can take current upto 140 amps,is it the current of single core of the cable or of all the cores jointly.
while buying 30 kva on line ups for 1 phase ouput, we ave to calculate the number of batteries for 2 hours back up? how to calculate the ah rating and number of batteries
why always electric field is linked with magnetic field???
2 Answers Bhushan Power Steel, NTPC, Tata Steel Limited,
How efficiency of thermal plant can be improved?
what is Real power and Reactive power ? what is difference between them ?
what is ground clearence ,what is minimum ground clearence ,i.e present value following in india ,is it changes wit conductor size ,kva rating.surface
keeping in view of parallel operation which of the 3 phase transformer connection are possible? a)delta-delta to delta-star b) delta-delta to star-delta c) star-star to delta-delta d) delta-star to star-delta
How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks
What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?
Two bulbs of 500w and 200w rated at 250 v will have resistance ratio as ?
2 Answers CGL, Dreamz Infra, Sunny Developers,
What is the actual calculation for transformer short circuit test?.
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)