The input dependency characteristics of a uninterruptible power supply (UPS).
UPS Input Dependency Characteristics
|List Options||Option Definition||Unit of Measure|
|Voltage and frequency independent||A Voltage and Frequency Independent (VFI) is independent of voltage and frequency variations and capable of protecting the load against adverse effects from such variations without depleting the stored energy source.||None|
|Voltage independent||A Voltage Independent (VI) is capable of protecting the load as required for VFD, above, and in addition from: a) Under-voltage applied continuously to the input. b) Over-voltage applied continuously to the input||None|
|Voltage and frequency dependent||Capable of protecting the load from power outage.||None|
|Not applicable||Not applicable||None|
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