7SR21 & 7SR22 Performance Specification
Unrestricted © 2013 Siemens Protection Devices Limited
Page 47 of 68
2.18 51V Voltage Controlled Overcurrent (Ph-Ph)
2.18.1 Reference
Parameter
Value
Vs
Setting
5, 5.5…199.5, 200 V
m
Multiplier
0.25, 0.3…0.95, 1
Is
Setting
1 xIn
2.18.2 Operate and Reset Level
Attribute
Value
V
op
Operate level
100 %
Vs
,
±
1 % or
±
0.25 V
Reset level
£
105 %
V
op
Repeatability
±
1 %
Variation
-10 °C to +55 °C
£
5 %
f
nom
- 3 Hz
to
f
nom
+ 2 Hz
harmonics to
f
cutoff
£
5 %
Operate and Reset Time
As per Phase Fault Shaped Characteristic Element (ANSI 51).
Where Pickup Level = Is for Voltage > Vs
Pickup Level = (Is x m) for Voltage < Vs
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
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