Please tell me what is the difference between online UPS &
OFF line UPS?
Answers were Sorted based on User's Feedback
Answer / santosh_kawade
Difference between online UPS and OFFline UPS
(Uninterrupted power system):
1) Online UPS : In this system UPS is alway connected to
system. All equipment recieve power through UPS system. In
case of power failure it provide backup without any break
(no break system not even in milliseconds)
2) OFFline UPS : In this system UPS is not always connected
to system. As per design it only monitor healthiness of
power supply system and as soon as power goes OFF its
switch on automatically in few milli-seconds and provide
power back.
Nomrmally online UPS is preferable.
Santosh Kawade
9224 69 3116
Is This Answer Correct ? | 11 Yes | 1 No |
Answer / sunil guru
>>>>>ON LINE UPS -- HAS MUCH MORE FEATURES THAN OFF LINE AND PRICE WISE ITS PRICE IS Much higher THAN OFFLINE
IN ONLINE UPS THERE IS NO CHANGE OVER TIME SO THE SENSITIVE EQUIPMENT LIKE PC DOES NOT REBOOT,OUTPUT IS PURE SINE WAVE,THERE ARE MANY PROTECTIONS FORM MAIN UTILITY IS PROVIDED BY UPS LIKE (SPIKES,RUGGEDNESS,TRANSIENTS,HARMONICS,OVER VOLTAGE,UNDER VOLTAGE,SHORT CIRCUIT)
WHICH ARE NOT MAINLY FOUND IN OFFLINE UPS.
IN ONLINE BATTERY IS ALWAYS IN OPERATION (AC-DC -BATTERY -DC -AC)
>>>>>IN OFFLINE THERE IS A CHANGE OVER OF FEW MILLI SECOND
ONLY FEW PROTECTIONS ARE PROVIDED
BATTERY IS NOT IN CONTINUOUS OPERATION (IT COMES IN PICTURE ONLY WHEN MAINS FAILS)
FOR ANY DISAGREEMENT CONTACT ME ON parmar20072008@yahoo.com
Is This Answer Correct ? | 4 Yes | 1 No |
What are the essential parts of a transformer?
why transformer rating in kva
How I calculate the ELCB for circuit breakers?
A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.
What do you mean by ACB and VCB?
how to convert star network in delta or vice versa...?
what is a pf factor in generator.
explain the working principal of the circuit breaker?
what is the excess air in furnace
What is the slip speed?
what is difference between AC VVVF drive & Dc VVVF drive explain their working principle?
What is the ideal position cooling fan inside the dc motor?