working principle of UPS

Answer Posted / prosenjit majumder

UPS means uninterrupted power supply . It is used for
electronic instruments where continuous supply is
required . In UPS one battery bank is there which is used
for storage of power . When external supply is on the bank
get charged automatically . If supply goes off , this
stored DC voltage converted into AC voltage by a inbuilt
inverter . This o/p is fed to load . So a UPS consists of a
battery bank , a inverter circuit and associated
circuitry . There are various types of inverter like on
line , off line , line interuptive etc .

Is This Answer Correct ?    292 Yes 30 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

3610


What is the phase relationship between the primary and secondary voltages of a transformer?

590


What will be the diameter of pipe between conservation tank and transformer

1462


how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

1659


how the works electronic energy meter?

1670






WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?

2052


what happened when we supply a dc current in dc motor?? can it worked properly?

1464


Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

1302


WHAT R THE SAFETIES IN A HIGH TENSION PANEL N LOW TENSION PANEL. ALSO WAT SAFETIES R THERE IN A 200 KVA TRANSFORMER?

1824


what is cogging and crawling

2017


Why we use auxillary relay ? what is function of differential relay, directional o/c relay?

1630


is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

4148


How you give clearance to a spare feeder.

1225


What are the main advantages of generalized error co-efficients?

645


Why squirrel cage motor can only use with low starting loads ?

1558