What is d diff. btw Online & Offline UPS???
- 4 Answers
- 5310 Views
- Emerson, I also Faced
- E-Mail Answers
Answer Posted / abanikanta
Besides above mentioned answer (1) I would like to explain some points--
1)Using a online UPS is advantageous for us because of interruption of line supply.As mentioned after main supply fail we use power from battery...........this is a problem :the time it takes to changeover .for example,if our system is much sensitive we may get interruption in getting supply. Normally the the change over time is in order of few millisec.
2) Online UPS is observed to be more economical for higher rated UPS.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
Why need 3phase machine double earthing?
by what factor the starting current is used when comparing star and delta connection for motor starting?
State norton’s theorem?
How to discuss the phase shift of transformer considering open delta?
which protection function should measure RMS value of current&DFT value of current?
what is servo motor and how it works?
Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.
What are the operation carried out in thermal power station?
what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.
why dimmerstate always connected in star connection? what will happen if it connected in delta?
Star Delta Diagram with full description
how hydrogen cooled alternator undergo maintanence ? that is hydrogen when come in contact with air can result into explosions .
How much earthing frequency is capable?
What is the mmf,rgt and ngt please brief completely
I want to merge a cable..in between two metering Cubicals which contains CT's and PT's and Energy meter..before taking merger..what are the common things required?
