7SR224 Argus Performance Specification
4.2 Loss of Voltage (LOV) Loop Automation Function
4.2.1 Reference (LOV-A/X Dead/Live )
Parameter Value
Live Vs
Setting 5, 5.5… 80V
Dead Vs
Setting 5, 5.5… 80V
4.2.2 Operate and Reset Level
Attribute Value
V
op
Operate level
100 % LiveVs, ± 2 % or ± 0.5 V
Reset level
100 % DeadVs, ± 2 % or ± 0.5 V
Repeatability
± 1 %
-10 °C to +55 °C
≤ 5 %
Variation
f
nom
- 3 Hz to f
nom
+ 2 Hz
≤ 5 %
4.2.3 Reference LOV Automation Timers
Attribute Value
t
op
LOV Primed Time 0, 1 … 600s
t
op
LOV Action Delay 0, 1 … 600s
t
op
LOV-A Action Delay 0, 1 … 600s
t
op
LOV-X Action Delay 0, 1 … 600s
t
op
LOV Sequence Time 0, 1 … 600s
t
op
LOV Reclose Delay 0, 1 … 600s
t
op
LOV SOTF Time 0, 1 … 600s
t
op
LOV Reclaim Time 0, 1 … 600s
t
op
LOV Memory Time 0, 1 … 600s
4.2.4 Operate Time LOV Automation Timers
Attribute Value
t
op
Accuracy
t
op
, ± 1 % or ± 50ms
Repeatability
± 1 % or ± 50ms
©2010 Siemens Protection Devices Limited Chapter 3 Page 49 of 49