Characteristics
|
Online UPS
|
Offline UPS
|
Inverter
|
Inverter always remains ON all the time and provides output Power.
|
Inverter is switched on only is main supply is off.
|
Switching Time
|
Online UPS has switching time between 0-1 ms
|
Switching Time is generally <5 ms.
|
Area of Use
|
Generally used in large organizations and the areas where perfect UPS
supply is needed.
|
|
Inverter Design
|
Sine wave PWM Inverter is used.
|
Quasi Sine wave inverter is used.
|
Batteries Location
|
External batteries are used with high capacity models.
|
Generally uses internal batteries.
|
Batteries Type
|
Tubular Lead acid batteries are used.
|
SMF (Sealed Maintenance Free) Batteries are used.
|
Backup Duration
|
Few Minutes to few Hours. E.g. 30 Minutes to 10 Hours.
|
10 to 20 Minutes Only.
|
MOSFET/IGBT Use
|
Uses MOSFET and IGBT
|
Only uses MOSFET
|
Price Range
|
Very High
|
Low
|
Size
|
Large and bulky
|
Small and portable
|
Input Supply Type
|
Three Phase
|
Single Phase
|
Tuesday, July 16, 2013
Difference Between Online and Offline UPS
Labels:
Hardware
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