Comparison between different UPSs:
Features |
Offline UPS |
Line-interactive UPS |
Online UPS |
Size |
Compact |
Typically large and heavy |
Typically light and small sized |
Practical power range (KVA) |
0-3 |
0-5 |
1-1500 |
Voltage conditioning |
Low |
Design dependent |
High |
Cost per VA |
Low |
Medium |
Medium |
Usage during power outage |
Uses battery during brownouts, limited or no protection against power irregularities |
Does not protect against all forms of power irregularities |
Highest protection against all power irregularities |
Parallel function |
Not possible |
Not possible |
Possible |
Efficiency |
High |
Moderately high (Typically 95%-98%) |
Medium |
Typical application fields |
Homes, small offices personal computers etc. |
Small and medium businesses, web and departmental servers etc. |
Telecoms, Communications, Banking, Transportation, Industrial environments, Data centers etc. |
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