Siemens Argus 7SR21 - Directional SEF Wattmetric; Operate and Reset Level; Operate and Reset Time; Reference

7SR21 & 7SR22 Performance Specification
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2.23 Directional SEF Wattmetric
2.23.1 Reference
Parameter Value
P
o
Setting 0.05, 0.10,… 20.0 xInxW (Where In = 1A or 5A )
I Applied current @ In = 1A 10mA…5A
V Applied voltage 10V…200V
q
Angle <87.5deg
CA
67SEF Char Angle (
q c)
0
f Nominal 50/60Hz
2.23.2 Operate and Reset Level
Attribute Value
P
op
Operate level
100 % P
o
, ± 25 % or ± 25mW
Reset level
³ 95 % P
op
Variation -10 °C to +55 °C
£ 5 %
2.23.3 Operate and Reset Time
Attribute Value
t
basic
Element basic
operate time
<50ms
Repeatability
± 1 % or ± 10ms