Siemens Argus 7SR22 - Load Blinder (21 LB - 3 P); Reference; Operate Level; Operate Angle

7SR21 & 7SR22 Performance Specification
Unrestricted Page 64 of 68 © 2013 Siemens Protection Devices Limited
3.8 Load Blinder (21LB – 3P)
3.8.1 Reference
Parameter Value
Φ Angle + ve setting 5 Deg to 85 Deg
Φ Angle – ve setting 5 Deg to 85 Deg
Z Impedance 1 Ohm to 100 Ohms
V
pps
Vpps Level 1 V to 110 V
I
nps
Inps Level 0.05 xIn to 5 xIn
3.8.2 Operate Level
Attribute Value
V
PPS
Voltage PPS operate level
100 % Vs, ± 2 % or ± 0.5 V
I
NPS
Current NPS operate level
100 % Is, ± 5 % or ± 1% In
Impedance
100 % Zs, ± 5 % or ± 0.1 Ω
Repeatability
± 1 %
3.8.3 Operate Angle
Attribute Value
Operating angle
forward
(21LB-3P Angle +ve°) ± 5° to (21LB-3P Angle –ve°) ± 5°
reverse
(180° - 21LB-3P Angle +ve°) ± 5° to (180° + 21LB-3P Angle –ve°) ± 5°